fda safety alerts and firm lobbying: the friday effect …
TRANSCRIPT
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FDA SAFETY ALERTS AND FIRM LOBBYING: THE FRIDAY EFFECT AND ITS CONSEQUENCES
Luis Diestre IE Business School Alvarez de Baena, 4
Madrid, 28006, Spain Tel: +34 (91) 5689600 Fax: +34 (91) 5689747
e-mail: [email protected]
Benjamin Barber IV IE Business School Alvarez de Baena, 4
Madrid, 28006, Spain Tel: +34 (91) 5689600 Fax: +34 (91) 5689747
e-mail: [email protected]
Juan Santaló IE Business School Alvarez de Baena, 4
Madrid, 28006, Spain Tel: +34 (91) 5689600 Fax: +34 (91) 5689747
e-mail: [email protected]
Work in progress, please do not cite or circulate without permission
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We integrate the corporate political activity literature with impression management
research to explore whether lobbying allows firms to influence the timing of negative news by the
FDA. First, we show that FDA safety alerts announced on Fridays experience a lower diffusion by
healthcare experts and the media. Furthermore, we find that firms who lobby the FDA are more
likely to have safety alerts for their drugs announced on Fridays. We find this effect to be stronger
for severe safety alerts. Finally, we explore the public health implications of the lower diffusion
of Friday safety alerts and find that, although safety alerts are in general effective in reducing
patients’ adverse effects, this effectiveness is substantially lower for alerts announced on Fridays.
Specifically, compared to non-Friday alerts, Friday safety alerts are associated with 30% more
deaths, 28% more serious adverse events (death, hospitalization, disability, life-threatening, and/or
congenital anomaly) and 26% more adverse events in general.
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Firms are dependent on governments and public institutions for their success (Bonardi,
Hillman, and Keim, 2005; De Figueiredo and Richter, 2014; Hillman, Keim, and Schuler, 2004).
Public officials determine firms’ fates by restricting market entry (e.g., issuing licenses),
determining the competitive environment (e.g., regulating prices and issuing patents), or
administering sanctions (e.g., issuing fines for regulatory non-compliance). Given this strong
dependence on the public sphere, it is not surprising firms undertake political activities to cope
with the inherent policy uncertainty. Firm’s political activities have been shown to influence
decisions about taxes (Richter, Samphantharak, and Timmons, 2009), federal contracts (Ridge,
Ingram, and Hill, 2017), and regulated prices (Bonardi, Holburn, and Bergh, 2006). Overall, the
corporate political activities (CPA) literature has provided rich evidence that political efforts can
shape public officials’ decisions in the firm’s favor.
Yet, government officials not only make policy decisions but, in the majority of the cases,
they also communicate these decisions to the public. This communication is critically important
since the way officials communicate news can affect the firm as much as the content of the
decisions themselves. Prior impression management studies show how the manner in which
corporate news are communicated to external audiences—e.g., when is the information made
public, or through which channel—strongly determines external audiences’ interpretation and
reaction to that new information (Elsback, Sutton, and Principe 1998; Graffin, Haleblian, and
Kiley, 2016). When it comes to policy decisions this is especially true. Because there is a lot of
uncertainty about how a new policy will affect a specific company, the way in which a firm’s
stakeholders will interpret and react to a policy decision depends on how such decision is
communicated. Ideally, then, firms would want policy decisions be communicated to the public
in the way that triggers the most positive (or least negative) reactions. This is exactly what firms
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do when it comes to communicating internal corporate news: the impression management
literature has provided broad evidence that firms are very strategic when designing their
communication activities in an attempt to manage audiences’ perceptions (Bolino, Kacmar,
Turnley, and Gilstrap, 2008; Elsbach, 2006, 2012; Graffin et al., 2016). Yet, when it comes to
policy decisions, it is public officials, not firms, who communicate news to the public. The
question is then: can firms “persuade” public officials to implement impression management
tactics similar to the ones firms implement when they communicate internal corporate news? Are
political activities helpful not only at shaping policy-making, but also at shaping policy-
communication? To our knowledge, this is an unexplored question in the CPA literature.
We aim to fill this gap by looking at a specific type of policy communication: the
reporting of drug safety news by the U.S. Food and Drug Administration (FDA). The FDA is
responsible for identifying and reporting potential safety issues on marketed pharmaceutical
drugs. When the agency discovers that a marketed drug has a previously unknown side-effect
that represents a risk for patients’ health, it releases a safety alert communication where it
explains the severity and scope of the drug’s safety issues, and the suggested changes in doctors’
prescription behavior. Obviously, these alerts have negative consequences for the firm selling the
drug (Chen, Ganesan, and Liu, 2009). First, the announcement that the firm missed an important
side-effect during the development of the drug is likely to trigger a negative reputation, which
may lead to greater scrutiny in the future (Ahmed, Gardella, and Nanda, 2002; Dowdell,
Govindaraj, and Jain, 1992; Cheah, Chang, and Chieng, 2007). In addition, drug sales are likely
to drop due to changes in doctors’ prescription behavior and patients’ reactions to safety scandals
(Dusetzina et al., 2012; Hurren, Taylor and Jaber, 2011).
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In this study, we claim that the magnitude of these negative consequences will depend
upon the way the FDA releases the news. Prior research in impression management has
identified several factors that are likely to affect how strongly external audiences react to
negative corporate news (Bolino et al., 2008; Elsbach, 2006, 2012). In this study we focus on one
particular factor: the timing of the communication. How stakeholders react to safety news
depends upon how quickly, and broadly, such news diffuses. Key information intermediaries, i.e.
the media and industry experts, typically are the ones to provide this type of technical news to
the public, however these intermediaries’ attention is not constant over time (Deephouse and
Heugens, 2009; Hoffman and Ocasio, 2001). A large literature on organizational behavior and
labor economics has shown how cognitive attention varies significantly over the workweek.
Specifically, on Fridays productivity and motivation are at the lowest (Accountemps, 2013;
Sotak et al., 2015), absenteeism is at the highest (Herrman and Rockoff, 2012; Johns and Hajj,
2016; Miller Murnane, and Willet, 2008), and professionals work the least amount of hours
(Beckers et al., 2008; Harrison and Hulin, 1989; Nader et al., 2012). This means professionals
are less likely to pay attention, assess, and react to events happening on Fridays. We build on this
logic to propose that healthcare professionals and media will be less attentive to FDA safety
alerts that take place on Fridays. Accordingly, we expect Friday alerts to experience a slower and
narrower diffusion. This means that the negative consequences associated with safety alerts—
negative reputation and drop in sales—should be less negative for Friday alerts.
Based on this, we expect firms will prefer their safety alerts reported on Fridays. We
build on the CPA literature to examine whether firms’ corporate political activities, specifically
lobbying activities, allow them to influence when the FDA communicates safety alerts. We argue
that lobbying establishes a communication channel with the FDA, increasing firms’ ability to
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influence public officials’ decisions about when to release safety news. Given that firms are
likely to prefer low diffusion of safety news, we predict that corporate lobbying should increase
the probability that a firm’s alert is announced on a Friday.
We then build on the assumption that firms have limited political capital. With limited
political capital firms cannot exploit their relationship with public officials without some cost.
Under this assumption, we expect firms to be selective and use their political influence when it is
most valuable. In our context, we expect that firms will be more likely to use their influence on
the FDA for severe safety alerts—i.e., those that have a dramatic impact on patients’ health.
These alerts are more likely to trigger a stronger reputational loss and a larger drop in drug sales
(Cheah et al., 2007). Therefore, we expect that the positive effect of lobbying on the probability
that an alert is issued on a Friday will be greater for severe safety alerts.
We test our predictions in a sample of 441 safety alerts reported by FDA between 1999
and 2016. First, we find that alerts reported on Fridays receive weaker diffusion by healthcare
experts and mass media. To capture diffusion by healthcare experts we look at whether such
experts shared safety alert news within their professional network (retweets of safety alert news
in their twitter accounts), whereas to capture diffusion by mass media we look into the number of
articles in U.S. newspapers covering a specific safety alert. We find that Friday alerts have far
less retweets and news articles than alerts announced any other weekday. Furthermore, we find
that firm lobbying increases the chances of having an alert released on a Friday by 63%. The
effect is even greater for drugs whose consequences for patients’ health were severe. In these
cases, the chance of a Friday alert goes from about 12% for non-lobbying firms to roughly 40%
for lobbying firms. This suggests that firms strategically use their political connections to
(indirectly) implement impression management tactics in the release of negative policy news.
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Finally, we examine the public health implications of the implementation of this Friday
effect. The goal of safety alerts is to inform patients and doctors of new side-effects so they can
adjust their prescription and consumption behavior accordingly and stop experiencing those
negative effects (Dusetzina et al., 2012; Hurren et al., 2011). Yet, if Friday safety alerts
experience a narrower and slower diffusion, it may be the case that those alerts announced on
Fridays are less effective in reducing patients’ adverse reactions. We explore this potential public
health implication relying on the FDA’s Adverse Event Reporting System (FAERS), a database
providing information about adverse events suffered by patients on specific drugs, and we find
support for our suspicion. Specifically, we find that the number of reported medical
complications decreases in the days after a safety alert communication, but that this decrease is
significantly weaker for Friday alerts. Specifically, the consequences on health are significant:
Friday safety alerts are associated with 30% more deaths, 28% more serious complications
(death, hospitalization, disability, life-threatening, and/or congenital anomaly), and 26% more
complaints in general.
CONTEXT: DRUG SAFETY ALERTS
One of the roles of the FDA—the regulatory agency for pharmaceutical products in the
U.S.—is to develop and disseminate information to the public regarding safety issues on
marketed drugs (CDER, 2007). After a drug is approved, the FDA may learn of new adverse
experiences (i.e., new side effects in a subpopulation of patients) from post-approval clinical
studies or patients’ reports to the FDA. When such information becomes available, the agency
actively engages in scientific efforts to evaluate whether there is indeed a potential drug safety
concern that should be communicated to the public and healthcare professionals. All this
evidence is evaluated by the Drug Safety Oversight Board (a branch of the FDA), which is
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responsible of deciding whether the emerging drug safety information should be made public or
not. With each new piece of evidence, the board faces the tension between the goal of having
people informed about potentially important safety information as early as possible and the goal
of having that information thoroughly substantiated (CDER 2007). Thus, only when the Drug
Safety Oversight Board has concluded that the evidence of a causal relationship between the
drug and the adverse events is reliable enough, such safety information is communicated.
Safety information is made public in the form of safety alert communications. Safety
alerts provide the following information: a description of the newly found adverse effects (i.e.,
summary of the scientific findings) and a set of recommendations for healthcare professionals
regarding how/when the drug should be prescribed based on the new evidence (changes in the
drug’s label). Since 1993, these safety alerts are communicated through the FDA’s MedWatch
web site. In addition, patients and healthcare professionals can obtain safety alert updates from
other channels such as email subscription or, since 2011, the FDA’s MedWatch twitter account.
We believe this is an ideal context to examine whether firms’ political efforts can
influence public officials’ communication activities for the following reasons. First, these alerts
have negative consequences for the firm. They usually harm the firm through a reputational
crisis and a drop in sales (Chen et al., 2009; Dusetzina et al., 2012; Hurren et al., 2011). Second,
although safety alerts are communications that clearly affect firm outcomes, the firm has little, if
any, influence on the process under which safety alerts emerge. Attending to the FDA’s statutes
regarding the communication of safety information (CDER, 2007), the FDA has no obligation to
keep the firm informed of its decisions on how and when to communicate safety information.
The FDA specifically states that it will “intend to inform the sponsor [the firm marketing the
drug] at least 24 hours before the alert is communicated” but it is not bound to do so. This
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suggests that firms, not only have little influence on how and when safety information regarding
their drugs will be communicated to the public, but also have little information about how the
FDA is managing the whole process or that such a process is taking place at all. This is a context,
then, where political activities can make a difference in that they may create a relationship
between the firm and the agency that is more permeable to the transfer of information giving the
firm a way to influence the process. We explore such a possibility in the following sections.
THEORY AND HYPOTHESES
We build on attention-based theories (Barnett, 2014; Hoffman and Ocasio, 2001; Ocasio,
1997, 2011) to analyze how safety alerts communicated on Fridays are diffused less broadly than
alerts communicated any other weekday.1 Next, we draw from the CPA literature to examine
how firms may strategically influence the timing of safety alert communications to their
advantage: we explore if firm lobbying increases the probability that alerts are issued on Fridays.
The diffusion of safety alerts: Information intermediaries’ attention
The process through which external audiences are informed about corporate events is
mediated by information intermediaries—e.g., media or industry experts (Dalton et al., 1998;
Deephouse, 2000; Lounsbury and Rao, 2004; Pollock and Rindova, 2003; Rao, Greve, and
Davis, 2001). These information intermediaries play the role of information brokers that
determine what information regarding organizations reaches external audiences and when/how is
the information communicated (Deephouse and Heugens, 2009; Madsen and Rodgers, 2015).
Yet, because the attention of information intermediaries is selective, and some events are more
likely to capture their attention than others, not all events are equally diffused to the general
public (Deephouse and Heugens, 2009; Hoffman and Ocasio, 2001; Ocasio, 1997, 2011).
1 Safety alerts are not issued on the weekends.
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Information intermediaries’ selective attention has both, cognitive and motivational roots
(Kaplan and Henderson, 2005; Ocasio, 2011). The motivational view proposes that people’s
goals, intentions and prior beliefs determine what events they pay attention to (Barnett, 2014;
Ocasio, 2011). Consistent with this, prior work finds that events that resonate more tightly with
the intermediary’s identity and agenda, in the case of mass media outlets for example, have a
greater likelihood of capturing their attention (Deephouse and Heugens, 2009).
The cognitive view of selective attention recognizes that there are multiple stimuli
competing for people’s limited attention (Ocasio, 1997), meaning that individual and situational
factors affecting people’s cognitive capabilities are likely to determine why some events are paid
attention instead of others (Barnett, 2014). Information intermediaries are professional
individuals (e.g., mass media journalists and industry experts) that in order to cover and diffuse
an event they need to (a) notice the event, (b) assess the event, and (c) react to the event (Barnett,
2014; Deephouse and Heugens, 2009; Hoffman and Ocasio, 2001). Noticing, assessing, and
reacting are activities that clearly demand information intermediaries’ cognitive resources, yet
the amount of cognitive resources available are not constant. This means that those events that
take place when information intermediaries’ cognitive capabilities are at their lowest level are
the ones with a greater probability fall under the radar of intermediaries’ attention and thus
experience a lower diffusion to external audiences.
In our study, we argue that one of the reasons why information intermediaries’ cognitive
capabilities are not constant is the presence of a weekly pattern: cognitive capabilities are
systematically lower in certain days of the week. Specifically, we propose that information
intermediaries’ cognitive resources are at their lowest level on Fridays. Extant evidence in the
organizational behavior and labor economics literatures is consistent with this claim. First,
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research on employee motivation, a key determinant of cognitive resources, shows that
motivation peaks on Mondays and Tuesdays, and is lowest on Fridays (Sotak et al., 2015). In a
similar vein, surveys on employee productivity reveal that Tuesdays is the weekday in which
employees report being most productive, while Fridays is the weekday in which productivity is
the lowest (Accountemps, 2013). Research looking at absenteeism—when cognitive capabilities
are simply null—reported higher levels of absenteeism on Fridays (Herrman and Rockoff, 2012;
Johns and Hajj, 2016; Miller et al., 2008), as well as a greater probability that employees take
vacation days (paid absenteeism) on Fridays (Harrison and Hulin, 1989). In addition, studies
looking at the allocation of working hours throughout the week by professionals with time
flexibility (e.g., academics) found that such professionals worked the least amount of hours on
Fridays (Beckers et al., 2008; Nader et al., 2012), which implies that such weekday is the one in
which employees have less cognitive resources available for their work-related activities. Recent
studies in finance and accounting provide further evidence of this effect by showing how stock
analysts and investors are less likely to react to events taking place on Fridays (quarterly
earnings [DellaVigna and Pollet, 2009; Hirshleifer, Lim, and Teoh, 2009] and mergers and
acquisitions [Louis and Sun, 2010]). This is consistent with the claim that such professionals’
cognitive resources are lower those days of the week. All this evidence that professionals exhibit
a lower cognitive capacity on Fridays implies that information intermediaries will be less likely
to attend to Friday events and, thus, such events will be diffused less broadly.
We apply this rationale into our context, where we explore the diffusion of information
concerning the safety of pharmaceutical drugs. Safety-related information may arise from many
different sources (e.g., federal agencies, patient advocacy groups, or scientific journals). Thus,
keeping up to date with all those sources requires an amount of time and effort that many
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external audiences lack (Advera, 2013). Therefore, this context is clearly one where information
intermediaries play a fundamental role as brokers that disseminate safety news. In this context
there are at least two main information intermediaries: healthcare experts and mass media.
Healthcare experts represent one of the key intermediaries that diffuse safety-related information
within the healthcare community (Advera, 2013). Those healthcare professionals that cover drug
safety events play the role of opinion leaders, and thus represent an important source of safety-
related information. Mass media, in addition, is an active diffusor of safety-related information
about pharmaceutical products. Major safety scandals are broadly covered in media news and
represent an effective channel through which such information reaches the general public
(Ahmed et al., 2002; Cheah et al., 2007). Then, applying the logic proposed above whereby
information intermediaries’ attention is lower on Fridays, we expect that healthcare professionals
and media—i.e., the key information intermediaries in our context—will be less likely to diffuse
safety alerts released on Fridays. This leads to our first two hypotheses:
Hypothesis 1a: The diffusion of safety alerts through healthcare experts will be lower for
safety alerts announced on Fridays.
Hypothesis 1b: The diffusion of safety alerts through mass media will be lower for safety
alerts announced on Fridays.
Consequences of FDA safety alerts
The publication of a drug safety alert by the FDA has several negative consequences for
the firm marketing the drug: a reputational loss and a drop in sales (Chen et al., 2009; Dusetzina
et al., 2012; Hurren et al., 2011). First, these communications are likely to affect the firm’s
reputation (Ahmed et al., 2002; Dowdell et al., 1992; Cheah et al., 2007). External audiences
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may interpret this event as a signal of the presence of key weaknesses in the firm’s drug
development activities. Maybe the reason why such safety alert took place is that the firm lacks
the ability to identify safety liabilities during clinical tests, which means that more safety alerts
may take place for other drugs in the future. This reputational shock may have strong
consequences for the firm in terms of a greater scrutiny in future drug development projects.
Moreover, a lower reputation may translate into a lower ability to attract consumers, alliance
partners, and even employees. Also, the stigmatization that follows one of such safety crisis may
hamper the firm’s ability to secure support from key stakeholders in the industry, such as
advocacy groups or consumer associations.
Second, beyond a reputational loss, firms are likely to experience a drop in sales after
safety alerts. There is evidence in the medical literature that safety alerts are followed by a
reduction in drug consumption (Dusetzina et al., 2012; Hurren et al., 2011). Safety alert
communications dictate new prescription recommendations for healthcare professionals.
Therefore, when doctors become aware of these new prescription recommendations they are
likely to reduce the medication of those patients that are subject to the safety risks reported in the
safety alert. In addition, patients may decide to stop taking that medication—or do not start
taking it in the case of new users—without the advice of a doctor, or irrespective of the doctor’s
recommendation (Dusetzina et al., 2012). Given the sense of urgency and alarm that many of
these safety crises generate, it is not rare that patients stop taking a medication after an alert even
before seeking medical advice (Szefler, Whelan, and Leung, 2006).
We now claim that all these costs will vary across safety alerts. Specifically, we claim the
drop in sales and the reputational loss that follows a safety alert communication will be lower for
alerts released on Fridays. Because Friday alerts are less likely to be diffused by healthcare
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experts (H1a) and mass media (H1b), we expect Friday alerts to generate the least negative
consequences for the firm. First, we expect that doctors will be less likely to adjust their
prescription behavior after Friday alerts. Safety-related information may arise from many
different sources (e.g., federal agencies, patient advocacy groups, or scientific journals) and
doctors complain that they lack the time to keep up to date with all those sources (Advera, 2013).
They acknowledge that, frequently, the way in which they firstly become informed about safety
issues is through their close professional network: conference meetings, conversations with
pharmacy specialists, sharing best practices and information with other doctors (Advera, 2013).2
This means that the probability that doctors get to know about safety news is partly determined
on how broad and fast such information diffuses throughout the network of healthcare
professionals. That is, it depends on the extent to which safety experts in the healthcare
community—the opinion leaders on safety-related information—diffuse safety news. Given that
such experts are less likely to diffuse safety alerts taking place on Fridays (H1a), we expect that
in these cases it will take longer for doctors to adjust their prescription behavior.
Second, when it comes to patients, these are unlikely to follow FDA alerts directly from
the MedWatch alert system. Instead, patients usually obtain safety-related information from mass
media. Then, since Friday alerts receive lower media coverage (H1b), and thus are less likely to
trigger a strong sense of alarm, we expect a weaker reaction by patients to such alerts—i.e., a
lower probability that they stop taking the medication.
2 One would think that doctors become immediately informed about safety issues, yet this does not seem to be the case (Advera, 2013). These professionals frequently complain that they do not get updated quickly enough on safety-related issues, which means that in some cases there might be a significant delay until they incorporate new safety information in their prescription decisions (Advera, 2013). Although doctors will ultimately get informed about new safety information thanks to changes in the drug’s label and in the software doctors use to prescribe medications, these changes are not immediate.
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Finally, if other key stakeholders such as advocacy groups, investors, competitors, or
scientists, are less likely to be informed about Friday alerts due to the weaker diffusion of such
alerts through the healthcare network and mass media (H1a and H1b), we expect that, not only
the potential drop in sales, but also the reputational loss that follows safety alerts will be weaker
for Friday alerts. The weaker coverage by media and industry experts of Friday alerts implies a
lower probability that the alert leads to a scandal.
Lobbying and the timing of FDA safety alerts
All this means that, if firms could choose when to release safety alerts, they would rather
have them issued on Fridays in that this would reduce the negative consequences associated to
such alerts. Yet, firms do not announce safety alerts, the FDA does. The question is then: can a
firm persuade the FDA into releasing a safety alert on a Friday? To answer this question, we first
need to understand how the FDA itself decides when to communicate safety alerts.
Once the FDA learns about a potential safety concern, its role is to gather as much
evidence and information as possible so that it can determine if the safety concern is indeed
associated with the consumption of the drug in question and what subpopulation of patients is
affected by such safety issues (CDER, 2007). This task is done by the Drug Safety Oversight
Board, a branch of the FDA that is responsible of deciding whether and when emerging drug
safety information should be made public. Only when the Drug Safety Oversight Board believes
that there is enough evidence linking the consumption of the drug with the specific safety
outcome (e.g., a side-effect), and it has enough information about who is affected by those safety
issues, the FDA makes a safety alert communication (CDER, 2007).
In theory then, a firm could influence this process by strategically providing key
information to the FDA relative to the causal link between the drug’s consumption and the safety
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concern, as well as information about which patients are affected by such safety concern. Firms
are likely to have information about this issue—obtained through its pre- and post-marketing
clinical trials—and this information could affect the Drug Safety Oversight Board’s assessment
about when to issue the safety alert. Thus, providing such information to the Drug Safety
Oversight Board is one way in which a firm could influence the timing of safety alert
communications. The problem, however, is that the Drug Safety Oversight Board is a branch of
the FDA to which firms have little access, meaning that firms are likely to be unaware that a
safety evaluation of one of their drugs is taking place. Attending to the FDA’s statutes regarding
the communication of safety information (CDER, 2007), the FDA has no obligation to inform
the firm about the fact that it is evaluating the safety of one of its drugs. The FDA will “intend to
inform the sponsor [the firm marketing the drug] at least 24 hours before the alert is
communicated” but it is not bound to do so. This means that an information provision strategy is
hard to implement, not only because the firm lacks a direct channel with the Drug Safety
Oversight Board, but also because once the firm is aware that a safety evaluation is taking place
it might be too late.
We build on the CPA literature to propose that lobbying activities may provide such a
communication channel between the FDA’s Drug Safety Oversight Board and the firm (Hillman
and Hitt, 1999; Hillman et al., 2004). Corporate lobbying has in fact been defined as an
“information provision strategy”, a definition that is consistent with the Lobbying Disclosure Act
(2 U.S.C. § 1601) that defines lobbying as the sharing of information with policy makers and
agencies by individuals representing the firm interests (Hillman and Hitt, 1999).3 Therefore,
lobbying activities towards the FDA may allow to open a communication channel with the
3 Irrespective of whether they were implemented by the firm itself (e.g., through its public affairs department) or through lobbying consulting agencies.
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agency. Then, this communication channel should allow the firm to provide key information to
the agency with respect to the safety concern being evaluated. This should increase the firm’s
ability to influence the timing of the whole process, and thus when the safety communication
will be made. Moreover, it is important to highlight that such a communication channel may
work in both directions, meaning that information may leak from the agency towards the firm as
well. This should increase the probability that the firm is aware that a safety evaluation on one of
its drugs is taking place, which may give the firm more time to design and implement its
information provision strategy in a more effective manner.
In sum, we propose that firms will rather have safety alerts issued on Fridays by the FDA
to the extent that the negative consequences of such alerts will be weaker. Firm lobbying, we
claim, provides the firm with a potential communication channel with the agency so that it can
implement a more effective information provision strategy. This, we argue, increases the firm’s
ability to influence the timing of safety alert announcements to its advantage. Consequently, we
propose that firm lobbying will increase the probability that a safety alert is issued on a Friday:
Hypothesis 2: Firm lobbying will increase the probability that a safety alert is announced
on a Friday.
Political capital, however, is a finite resource. Lobbying provides a communication
channel with the agency that allows the firm to gain influence on the agency’s decisions. Yet, the
firm cannot use this influence indiscriminately. There is an opportunity cost associated with
using political leverage on the FDA. Then, if firms can only influence a few of the governmental
decision-making processes, they will pick the ones that maximize their benefit. Consequently,
we expect firms to exploit their political influence—i.e., try to control the timing of the FDA’s
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safety communications—for those alerts that will trigger the greatest negative consequences for
the firm: i.e., alerts that refer to severe safety issues. Severe safety problems are those referring
to potential side-effects that may cause dramatic consequences for patients’ health. These
concerns are more likely to be diffused by mass media and healthcare experts, and trigger the
greatest sense of alarm among patients and the healthcare community (Cheah et al., 2007). Thus,
these alerts are the ones that most dramatically affect the reputation of the company (Cheah et
al., 2007). Similarly, these are the alerts to which both patients and doctors will react more
aggressively, leading to the largest drop in sales (Chen et al., 2009). Accordingly, these are the
alerts in which the firm has more to lose if they are not announced on a Friday. Therefore, we
expect that firms will be more likely to take advantage of the political influence provided by
lobbying activities for severe safety alerts. This leads to our final hypothesis:
Hypothesis 3: The positive effect of firm lobbying on the probability that a safety alert is
announced on a Friday will be greater for severe safety alerts.
METHODS
Data
To test our hypotheses, we compiled data from various sources. First, to identify drug
safety alerts we looked into the FDA’s MedWatch website (Carpenter et al., 2012; Cheah et al.,
2007). This web provides information for all safety alerts reported since 1996. Specifically, it
provides information about the date the alert was issued, the drug(s) involved in the alert, the
nature of the safety problem(s), and the FDA’s new prescription recommendations. The
description provided with respect to the nature of the safety concern allowed us to assess the
severity of each safety alert, a measure we used to test our last hypothesis.
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Second, in order to capture coverage and diffusion by healthcare professionals and mass
media we relied on two different datasets. To capture dissemination by healthcare experts we
look at how many healthcare professionals interested in safety-related issues decided to share
safety alerts information. The FDA opened a twitter account in 2011 where it started announcing
safety alerts (@medwatch). Since this twitter account only reports safety-related information, it
is mainly followed by healthcare professionals with a special interest on drug safety. Therefore,
we believe this is a place where we can find healthcare professionals with expertise on safety
issues and capture the extent to which these experts disseminate safety-related information.
Accordingly, we look at the number of retweets of the safety alert communications done by the
FDA through its @medwatch twitter account to capture dissemination of safety-related
information throughout the healthcare community.
To capture the dissemination of safety alerts by mass media we look into the Factiva
database for articles covering safety alerts in U.S. newspapers. Specifically, we searched for all
the articles published in between the day of the alert and six days after the alert, where the name
of the drug appeared in the article. We then read these drug-related articles and kept those where
the article referred to the drug safety alert in question. We build on the assumption that diffusion
of safety alerts by these media outlets captures how quickly the public becomes informed about
safety news.
To identify how much firms are lobbying the FDA we use data from the Center for
Responsive Politics’ OpenSecrets database.4 This database tracks all lobbying activities
disclosed by government mandated reports from registered lobbyists in regard to their lobbying
activities. In accordance with the Lobbying Disclosure Act all lobbyists, both internal and
4 https://www.opensecrets.org/
20
external to the firm, are required to file quarterly reports about their lobbying activities. This
database is available for the 1998 to 2016 period, and these reports include the name of the
client/employer, lobbying expenditures, and importantly for this study, which agency/agencies
were lobbied.
Finally, to create our control measures we draw from the FDA’s orange book database to
find information about the drugs that are in the market and the firms that own each of these
drugs; and the FDA’s @drugs data to obtain information on the regulatory approval of those
drugs (i.e., post-marketing requirements, priority reviews, etc.).
Sample
To create our final list of drug alerts we take the following steps. First, because lobby
data (OpenSecrets) is available since 1998, we look at safety alerts for the 1999 to 2016 period.
Second, we only look at alerts on drugs and do not consider alerts on other products such as
medical devices. Third, we restrict our sample to safety alerts on branded drugs (i.e., not
generics), since for these we can identify the company that owns the drug. Alerts on branded
drugs (not generics) represented around 74% of all drug safety alerts in our studied period.
Fourth, we remove those safety alerts that refer to drugs that are owned by more than one
company. In these cases, since there is more than one firm linked to the drug, we would not
know which firm’s characteristics are affecting our main outcomes, and whose firm’s lobbying
activities will influence the timing of the safety alert announcement. Finally, in those few cases
where we have more than one alert on the same drug on the same day, we “collapse” both alerts
into one single alert. After all these steps, we end up with a sample of 441 drug safety alerts.
For the test in which we look at the diffusion of safety alerts by healthcare experts our
sample is smaller. Because we look at the number of experts that retweet the FDA’s MedWacth
21
tweet informing about a safety alert, and this twitter account was opened in 2011, we can only
look at alerts between 2011 and 2016. The sample for this test includes 139 drug safety alerts.
Measures
Healthcare experts diffusion. As explained above, we look at the number of retweets
done by healthcare experts to safety alert tweets (through the FDA’s MedWatch twitter account).
The FDA opened up the MedWatch twitter account in 2011 to provide a means to disseminate
safety alerts information throughout the healthcare community. Those healthcare professionals
that play the role of opinion leaders when it comes to safety-related information are likely to
follow such twitter account. Thus, we expect that the intensity with which these healthcare
experts share and comment the safety alert information through their social median accounts will
capture the extent to which such safety alert is diffused.
Mass media diffusion. To capture media diffusion we look at the number of articles that
mention each safety alert the day after the FDA makes the announcement. To obtain such
information we looked at newspaper articles in the U.S. using the Factiva dataset. Our final
measure consistent in the total number of articles in the three days after the safety alert
announcement.5
Friday. We create a dummy variable that takes a value of 1 if the safety alert was
published on a Friday and 0 otherwise. It may be the case that an alert is released on a Thursday
and that Friday is a holiday. We found three of such cases and decided to treat those days as a
Friday in that attention should also we weaker before a holiday.6
5 We tried alternative windows in the robustness tests section. We also tried an alternative measure consisting on a dummy variable taking the value of 1 if there were no news at all on the alert and 0 otherwise (see robustness tests section). 6 Removing these three observations provides almost identical results (available upon request).
22
Lobbying the FDA. We first gather all lobbying activities for those public and private
pharmaceutical firms that suffered a drug safety alert. Second, we only account for lobbying
efforts that target the FDA, since this is the kind of lobbying that may allow the firm influence
the decision on when to announce drug safety alerts. We do not expect, for example, that
lobbying the Department of Defense or the Department of Transportation will help firms
influence FDA decisions on safety alerts. Then, we create a dummy variable that takes the value
of 1 if the firm lobbied the FDA and 0 otherwise.7 We look whether the firm lobbied the FDA in
the two years before the safety alert, assuming that such time window captures the presence of
political ties with the agency.8
Severity. To capture each safety alert’s severity we constructed a dummy variable that
took the value of 1 when the safety risks reported in the safety alert communication refer to
major (life-threatening) health problems and 0 otherwise.
Controls. We include several controls in our tests. At the firm level, we add the following
measures. First, we control for the number of branded drugs the firm got approved in the last ten
years as a proxy for firm size (prior drugs firm). We obtain this information from the FDA’s
orange book, which lists all drug approvals for each firm. Second, we control for the number of
safety alerts the firm has suffered in all of its drugs in the previous five years, which is obtained
from the Medwatch website described above (prior alerts firm). We expect that the presence of
prior safety alerts on the same firm may affect how broadly a new safety alert is covered and
disseminated. Third, we control for whether the firm is publicly traded or not, as a way to capture
the firm’s visibility (firm public). Finally, for our tests looking at how lobbying the FDA affects
7 We tried an alternative measure consisting on the actual amount of lobbying expenditures and we found similar support for our theory (see robustness tests section). 8 We tried two alternative windows, 1-year and 3-year, and found similar support for our theory (see robustness tests section).
23
the probability that a safety alert is announced on a Friday, we also include a control for how
much the firm has lobbied agencies other than the FDA (other lobbying). This way we rule out
the possibility that our measure of lobby is in reality capturing some firm unobserved factor.
At the drug-alert level, we control for the following factors. First, we include a measure
of the number of safety alerts the drug had in the previous five years, which we obtain from the
MedWatch website (prior alerts drug). The presence of previous alerts on the same drug may
affect how doctors and patients react to new alerts. Second, we control for whether the drug
required post-marketing tests after approval (post-marketing). In some cases, the manufacturer is
required by the FDA to undertake post-marketing clinical trials to assess some safety aspects
about the drug that could not be assessed during drug development, and this may affect how the
healthcare community reacts to safety news. Third, we also include the average number of
adverse events on the drug in the year before the alert, to control for the safety characteristics of
the drug before the communication (prior adverse events). Fourth, we add a dummy variable that
takes the value of 1 if there were other alerts communicated that same day and 0 otherwise (other
alerts) and another dummy that takes the value of 1 if the alert in question refers to more than
one single drug in its communication and 0 otherwise (other drugs). Finally, we include a control
for whether the drug enjoyed a priority review (priority review) and the logged number of days
since the FDA approved the drug (time since approval). If the FDA is seen as needlessly fast-
tracking the drug, this could be seen as the FDA acting too quickly. Likewise, if the drug has
problems soon after the FDA approved the drug as safe and effective, the FDA might be seen in
a negative light. In both cases the FDA may have an interest to communicate the alert in a day
that the reaction will be weaker, i.e., a Friday.
Analysis
24
Identification strategy
For our tests on the effect of Friday on healthcare experts diffusion and mass media
diffusion, due to the count nature of these outcomes, we relied on a negative binomial estimation
(H1a and H1b).9 When we test the effect of lobbying the FDA and alert severity on Friday, given
the binary nature of this dependent variable, we use a logistic regression estimation (H2 and H3).
We include year fixed-effects to control for temporal dynamics in the reaction to drug safety
alerts in all of our estimations.
Note that the regressions on the effect of Friday on healthcare experts diffusion and mass
media diffusion may report biased coefficients if the day in which alerts are announced is not
exogenous. According to our theory, firms may be influencing the announcement day. Hence,
there may be a positive correlation on the likelihood that an alert is announced on a Friday and
the importance of the alert for the firm, i.e., how much coverage the alert will receive. This
means that the coefficient of the Friday variable may be upwards biased. In the results section
below we show how the effect of Friday on the number of retweets and media articles is negative
and significant. Therefore, if this coefficient is upwards biased, the real impact of announcing
alerts on Fridays should be even more negative than what our estimations display.
RESULTS
In Table 1 we report descriptive statistics and correlations. Before undertaking our
regression analysis, we examine the validity of our story by performing some simple descriptive
comparisons with our final sample. Specifically, we look into the distribution of safety alerts
along the days of the week. In Figure 1 we show such distribution and how there are more alerts
9 We also tried an OLS estimation and the results provide similar support for our theory (available upon request).
25
announced as the days of the week go on, with Friday having more announcements than any
other day with having about 27% of all announcements.
[Insert Table 1 and Figure 1 about here]
However, we argue that the announcement of Fridays will not be random: we expect
politically active firms to be more likely than politically inactive firms to get announcements on
Fridays. Figures 2a and 2b show the distribution of safety alerts for both types of firm. We can
see a drastic difference between the firms that are politically active and those that are not. In
Figure 2b, which includes safety alerts on drugs owned by firms that lobby the FDA, there is a
greater frequency of Fridays. A Kolmogorov–Smirnov test shows that this distribution is
statistically different from a distribution of available weekdays in that same period at the 0.1%
level. Conversely, for firms that do not lobby the FDA (Figure 2a), the distribution of alert
announcements is relatively uniform. Although Fridays are still the most often day, a
Kolmogorov–Smirnov test shows that this distribution is not statistically different from a
distribution of available weekdays. The fact that the distribution of alerts throughout the
weekdays for non-lobbying firms is not different from a distribution of available weekdays
suggests that the FDA does not seem to have a “natural” tendency to release safety alerts on a
particular day.
[Insert Figures 2a and 2b]
Finally, because we predict this difference to be greater for severe safety alerts, we look
at this in Figures 3a and 3b, where we show the distribution of severe safety alerts only along
weekdays for lobbying and non-lobbying firms. When find that Friday alerts occur in
approximately 35% of the cases for firms that Lobby but in only 22% of the cases for firms that
do not lobby.
26
[Insert Figures 3a and 3b]
In the first four columns of Table 2 we report the effect of Friday on healthcare experts
diffusion and mass media diffusion. If Friday alerts receive less attention, then we should see
fewer people retweeting MedWatch safety alerts when the announcement is made on Fridays.
Likewise, we would expect fewer news articles being written about the alert for Friday alerts
than for the alerts announced any other weekday. The results in Table 2 provide support to our
predictions in Hypotheses 1a and 1b. Models 1 and 3 just include the control variables. Models 2
and 4 show that Friday alerts have fewer retweets and media articles (β = -0.501, p < 0.01 and β
= -0.261, p < 0.01 respectively).
[Insert Table 2 about here]
In Models 5, 6 and 7 of Table 2 we estimate the effect of lobbying the FDA on the
probability that the alert is released on a Friday. Model 5 just includes control variables. In
Model 6 we include lobbying the FDA, and find that this variable has a positive and significant
effect on the probability that an alert is communicated on a Friday (β = 0.834, p < 0.01). This
evidence supports hypothesis 2. Finally, in Model 7 we add the interaction between lobbying the
FDA and safety alert severity. We find that this interaction has a positive and marginally
significant effect on the probability of Friday (β = 1.221, p < 0.10). This finding provides partial
support for hypothesis 3. These results mimic the descriptive analysis we provided above:
lobbying is positively and significantly associated with an increased likelihood of the FDA
releasing an alert on Friday, and this effect is even stronger for severe safety alerts.
Graphical analysis
While Table 2 shows the statistical relationship between lobbying the FDA and Friday,
the interpretation of logistic models is not straightforward. For nonlinear estimations, a graphical
27
interpretation of the size and significance of the effects is necessary.10 For this we use a
simulation-based approach developed by King, Tomz, and Wittenberg (2000), which was
introduced into the management literature by Zelner (2009). We analyze the main and interaction
effects by taking 100,000 post-estimated draws from a random multivariate normal distribution
using the coefficients and variance-covariance matrices from our estimations in Models 6 and 7.
We then multiply the coefficients obtained in each draw with the real values of the underlying
data, but altering our main explanatory variables lobbying the FDA and safety alert severity. This
creates a statistical counterfactual that allows us to estimate the predicted probability of an alert
being on a Friday depending on whether the firm lobbied or whether the drug alert was severe,
while everything else for each observation stayed the same. Figure 4a shows the results for the
main effect of firm lobbying (Model 6) while Figure 4b shows the results for the interaction
effect (Model 7).
[Insert Figures 4a and 4b about here]
These graphical analyses provide further evidence in support for H2 and H3. First, Figure
4a shows how lobbying the FDA strongly increases the predicted probability of an alert being on
Friday. The baseline percentage of an alert being on Friday with no lobbying is about 22%.
When firms lobby this increases up to 36%, which corresponds to over a 63% increase in the
likelihood of a Friday alert. This suggests that having political connections with the FDA
increases the probability of receiving a favorable alert date. Looking at Figure 4b we can see that
this relationship is much stronger for severe safety alerts. Figure 4b shows that, for severe alerts,
lobbying increases the probability of Friday from about 12% to 40% (a 233% increase).
10 The interpretation of the size and statistical significance of the main and interaction coefficients is not straightforward in nonlinear estimations in that the relationship between an independent variable and a dependent variable depends on the values of the other variables included in the model (Ai and Norton, 2003; Hoetker, 2007).
28
Robustness tests
We try several alternative measures for media coverage. First, we look into different time
windows beyond the three-day window used in our main tests. We look at the number of articles
covering the safety alert in the one, two, four, five, and six days right after the announcement
also. All these measures provide similar support to H1b. Second, we look at a dummy variable
taking the value of 1 if there were no articles at all covering the alert and 0 otherwise. We run a
logistic regression on this alternative measure and again find support for H1b.
In addition, to ensure that our results are not simply a byproduct of a specific
specification of lobbying, we set out to test several alternative specifications of our lobbying the
FDA variable in Table 3. Here we look at three alternative ways to calculate lobbying: 1) the
amount of money the firm spent lobbying the FDA in the previous two years, 2) a dummy
variable that takes a value of 1 if the firm lobbied the FDA within the previous year, and 3) a
dummy variable that takes a value of 1 the firm lobbied the FDA in the previous three years.
Each of these measures is designed to assure that we are capturing something stable about the
relationship between the firm and the FDA. Our results are essentially identical across all of
these specifications: both the main effect of lobbying the FDA and its interaction with safety alert
severity are positive and significant (available upon request). This helps assure that our results
are not being driven by an arbitrary specification of lobbying but rather from a stable relationship
between the firm and the FDA.
Moreover, as with all studies looking at the impact of lobby on policy outcomes, our
study needs to be mindful about endogenity (De Figueiredo and Richter, 2014; Richter et al.,
2009). However, it is difficult to imagine a story about reverse-causality. A firm would need to
realize years in advance that it might receive an alert (on a Friday) and start lobbying more. This
29
seems implausible. Nonetheless, to safeguard against this potential problem, we run a Heckman
selection model in order to account for a potential endogenous selection into lobbying. In the
first stage, we regress firm lobbying on our control variables and the amount of campaign
donations to politicians in the same time period as an instrument. Because firms that engage in
one type of political strategy are likely to engage in other political strategies as well, we assume
that firms that engage more in political donations are more likely to lobby the FDA. Moreover, it
is unlikely that political donations will influence the FDA’s decision on when to announce the
FDA given that donations to candidates allow firm to enjoy political leverage once these
candidates are elected, something that will take place after the alert is announced. Hence,
lobbying in other activities satisfies the two conditions needed to be a good instrumental
variable: relevance and exogeneity. Next, in the second step, we re-estimate Friday as a function
of lobbying the FDA including the inverse Mills ratio calculated from the first step (Hamilton
and Nickerson, 2003; Shaver, 1998).11 We find similar results: firms that are politically active
with the FDA are still more likely to receive alerts on Fridays (available upon request).
PUBLIC HEALTH IMPLICATIONS: PATIENT ADVERSE EVENTS
So far, we have shown that politically connected firms are much more likely to get FDA
drug alerts on Fridays, the day in which attention is at its lowest. Yet, there might be a potential
unattended consequence: this increases the prevalence of the kind of alerts (Fridays) that may be
the least effective in achieving their function. The goal of safety alerts is to inform patients and
doctors of new side-effects so they can adjust their prescription and consumption behavior
accordingly and stop experiencing those negative effects (Dusetzina et al., 2012; Hurren et al.,
11 The inverse Mills ratio, λ, was calculated as λ1=(ϕ(βX))/(Φ(βX)) when lobbying the FDA is equal to 1 and λ0=−ϕ(βX)/([1−Φ(βX)]) when lobbying the FDA is equal to 0, where ϕ(ꞏ) is the standard normal pdf and Φ(ꞏ) is the standard normal cdf.
30
2011). Yet, if Friday safety alerts experience a narrower and slower diffusion then it could be the
case that those alerts announced on Fridays are less effective in reducing patients’ adverse
reactions. By increasing the prevalence of Friday alerts, the FDA would be making this problem
worse.
Data. We explore this potential public health implication using the FDA’s Adverse Event
Reporting System (FAERS), a database providing information about adverse events suffered by
patients on specific drugs. This data is available since 1998 and provides information on the day
in which a given adverse event was experienced, the severity of such adverse event (e.g.,
whether it led to death, hospitalization, etc.), and the drug that caused the adverse event. These
adverse events are reported by doctors, pharmacists, nurses, manufacturers, and patients, and
provide a viable proxy for the prevalence of side-effects with marketed drugs. We explore if
alerts indeed lead to a reduction in adverse events (i.e., if safety alerts are effective), and if this
reduction is weaker for Friday alerts.
Sample. For this, we match the 441 drug-alerts in our sample with the FAERS database.
This matching, however, is not straightforward. Often times, the name of the drug would be
abbreviated in the FAERS database. Take for example Adderall: there is Adderall or Adderall
XR. Yet, the FAERS database will just report Adderall as the drug causing the reported adverse
event. Therefore, we match adverse events to drug safety alerts by looking at the first name of
the drug only (e.g., Adderall). This means that we may be incorrectly assigning adverse events to
certain drug safety alerts. We believe this is mainly adding noise, biasing our estimates
downwards and making it harder to find statistically significant effects.
Next, to explore whether the number of reported adverse events is reduced after a safety
alert, and if this reduction depends on the weekday in which the safety alert is announced (Friday
31
versus non-Friday), we need to transform our sample of 441 alerts. Since we want to compare the
number of adverse events reported in the days before and after the drug alert, we need to look
into several days, some before and some after the announcement, for each safety alert. It is
unclear, however, how many days before and after the alert we need to look at to identify
differences in the responses to Friday and non-Friday alerts. This depends on how long it takes
for doctors and patients to react and incorporate safety news into their drug prescription and
consumption behavior respectively. We adopt a conservative approach and look into the three
months before and after the announcement.12 Moreover, because some drugs received more than
one alert in our period of study, it is important to account for the possibility that reactions to a
given drug alert are “contaminated” by the temporal proximity to another alert on the same drug.
Accordingly, in those cases where we have two alerts on the same drug whose windows overlap,
we remove those two alerts from the sample.
Measures. To identify the day in which a patient suffered an adverse event with a specific
drug, we look at the specific information included in the FAERS dataset where it provides the
date in which the patient reported experiencing the adverse event. This date is different from the
date in which this adverse event was reported to the FDA, a date that is also provided in this
database. Although in the vast majority of the cases, the date in which the adverse event was
reported to the FDA is very close to the date when the patient experienced the event, in some
other cases these two dates are very far apart. Since we are interested on how drug alerts impact
whether patients keep experiencing the same complications associated with the drug, we use the
date the patients experienced the adverse event to create our main outcome in this first test.
12 We look also into 1-month and 6-months windows and the results are substantially the same, although with smaller differences between Friday and non-Friday alerts as we increase the window size (available upon request).
32
Often times, the reports of these adverse events spike in time, with no events being
reported and then suddenly dozens being reported on a random day. To account for the peaks and
valleys in reporting, we add one to all of these variables and take the natural logarithm in order
to control for its skewed distribution. Moreover, we look into three different types of adverse
events: total adverse events, serious adverse events, and death adverse events. Total adverse
events includes all adverse events reported in the FAERS database. This is the broadest measure:
it does not differentiate between a headache and a death. We also look at serious adverse events,
which we measure by looking at adverse events that were recorded as death, hospitalization,
disability, life-threatening, and/or congenital anomaly. Lastly, we look at death adverse events,
which only captures those adverse events that led to the death of the patient. The last two
measures can only be used for safety alerts announced after 2004, the year in which information
about the seriousness of concerns become available.
Analysis. We use a difference-in-differences approach where we compare the number of
adverse events before and after the alert announcement. We rely on an ordinary least squares
(OLS) regression to estimate the amount of adverse events on a given day as a function of (1) a
dummy variable (after) that takes a value of 1 for those days after the alert was announced, (2) a
dummy variable (Friday) that takes a value of 1 if the alert was announced on a Friday, and (3)
all the control variables used in our tests. Thus, we expect after to have a negative coefficient: if
safety alerts are effective, we should find less adverse events reported after the alert. Yet, we
expect this reduction to vary depending on the weekday in which the alert is announced.
Specifically, if less people are paying attention to Friday alerts, we expect these alerts to generate
33
a lower reduction in adverse events, meaning that the coefficient of the interaction between after
and Friday should be positive. We use fixed-effects at the year and day levels.13
Results. The results of these estimations are reported in Table 3. Overall, for all three
types of adverse events, we find strong evidence that safety alerts are in average effective: the
coefficient of the variable after is always negative and significant at the 1% level. In addition, we
find that the interaction between the variables Friday and after is positive and significant at the
1% level in all three models, suggesting that Friday alerts do not reduce adverse events in the
same amount as non-Friday alerts do. Note that the interaction coefficient saps a large portion of
the benefits of the alert (coefficient of the main effect of after), and in the case of serious and
death adverse events it essentially negates all of the benefits gained by the alert. This suggests
that alerts may not reduce serious adverse events and deaths when they are released on Fridays.
[Insert Table 3 about here]
DISCUSSION
This study shows that Friday safety alerts are paid less attention than alerts taking place
other days of the week. Friday alerts are shared less intensively by healthcare experts and are
associated with fewer articles in mass media, suggesting that healthcare professionals and media
are paying less attention to Friday safety news. We argue this decreased attention is why firms
are pushing for Friday announcements by the FDA. Indeed, the alerts announced on Fridays are
disproportionately associated with firms that have been actively lobbying the FDA in the recent
years. This suggests that firms who are politically connected are able to affect the timing of
safety alerts. Furthermore, we show that releasing drug safety alerts on Fridays is associated with
increased patient problems when compared to alerts released any other weekday.
13 We tried an alternative specification including firm, drug, and alert fixed-effects and the results of these estimations provide similar support (available upon request).
34
Theoretical contributions
We believe our paper contributes to several literatures. First, we show how corporate
political activities allow firms to influence public officials’ communication strategies. While the
CPA literature has mostly focused on how firms’ political efforts can shape the content of public
policy, our paper shows that there is an additional dimension of public activities—
communication—that firms can influence through their non-market strategies. Through
lobbying, firms are able to persuade public officials to implement similar impression
management tactics to the ones they implement in their communication of internal corporate
news. In addition, our paper builds on the assumption that political capital is limited, and as any
scarce resource, used strategically. Our evidence suggests that firms are more likely to leverage
on their political influence when they have more to gain from it.
Second, our paper bridges the CPA and the impression management literatures. It shows
how firms can implement impression management tactics even when a third party, outside the
firm’s control, decides upon the communication strategy. Moreover, this paper shows how
timing can be a rather effective impression management tactic. Until now, the analysis of how
the timing of news affects stakeholder reactions has been largely relegated to the finance and
accounting literatures in the context of earning reports and acquisition announcements. Our study
shows how the day of the week in which events take place strongly influences the extent to
which media and industry experts cover and diffuse such events.
Practical implications
We believe our paper has important policy implications in the context of public health.
Extant evidence suggests that prescription drugs cause about 2 million hospitalizations and
100,000 deaths every year in the United States due to known side-effects (Lazarou, Pomeranz,
35
and Corey, 1998; Light, Lexchin, and Darrow, 2013). This means that FDA safety
communications are not always effective. Our study suggests one plausible reason why some of
these alerts are not effective in reducing patients’ adverse reactions: those alerts announced on
Fridays are not diffused as quickly and broadly as alerts announced any other weekday. This
finding leads to clear policy recommendations: (1) alerts should not be released on Fridays and
(2) the method through which the healthcare community gets informed about safety issues
should be improved.
Limitations and future research
Our paper has several limitations. First, we look into a very unique context: drug safety
alerts. It is unclear whether our conclusion that firms’ lobbying activities help firms influence the
timing of policy decisions will apply into other policy decisions. Second, we proxy diffusion of
safety news throughout the healthcare community by looking at retweets and media articles.
These are just two of all the many channels through which this type of information is diffused.
Therefore, it is unclear if our proxies provide a valid approach to capture the presence of a Friday
effect in the dissemination of safety news. Future research with richer and more sophisticated
data could shed light on this issue. Finally, we argue that lobbying the FDA explains the timing
of safety alerts, but the mechanism through which this happens is unclear. How does lobby work
is still a black box, and thus a limitation of almost every study in the CPA literature.
Overall, we believe our study provides a novel approach towards understanding the
extent to which political efforts allow to influence the timing of policy news, and the potential
implications of such strategies. We hope this will spur further research on this relevant topic.
37
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41
Table 1 Descriptive Statistics and Correlations a
N = 441 Mean s.d. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 Mass media diffusion 7.67 6.57 1.00
2 Healthcare experts diffusion 3.99 4.70 0.27 1.00
3 Friday 0.27 0.44 -0.25 -0.12 1.00
4 Lobbying the FDA 0.33 0.47 0.00 0.09 0.17 1.00
5 Other lobbying 4.22 5.49 -0.04 -0.01 -0.02 -0.11 1.00
6 Severity 0.42 0.36 0.09 0.13 -0.08 0.21 0.25 1.00
7 Prior drugs firm 1.95 0.89 0.08 0.08 -0.18 0.13 0.07 -0.06 1.00
8 Prior alerts firm 6.18 7.60 -0.17 0.09 0.09 0.28 -0.03 0.06 0.22 1.00
9 Firm public 0.46 0.50 0.03 0.22 -0.03 0.38 0.24 0.25 0.31 0.18 1.00
10 Prior alerts drug 0.94 1.41 0.00 0.04 0.00 0.13 0.02 -0.02 0.19 0.45 0.05 1.00
11 Post-marketing 0.39 0.49 0.13 0.19 -0.10 0.06 -0.15 0.06 0.34 -0.05 -0.04 0.19 1.00
12 Prior adverse effects 6.17 2.25 0.04 0.16 -0.03 0.12 0.07 0.02 0.17 0.33 0.19 0.22 -0.01 1.00
13 Other alerts 0.27 0.44 -0.02 0.00 0.02 -0.01 0.22 0.25 0.09 0.12 0.10 0.05 0.02 0.23 1.00
13 Other drugs 0.24 0.43 0.23 0.09 -0.22 -0.16 -0.32 -0.29 0.07 -0.29 -0.16 -0.12 0.12 -0.23 -0.22 1.00
13 Priority review 0.25 0.43 -0.14 0.13 0.05 0.20 0.19 0.27 0.02 0.12 0.18 0.16 0.24 0.04 0.25 -0.31 1.00
14 Time since approval 7.37 0.96 0.08 -0.03 0.20 0.08 -0.01 -0.11 -0.21 0.10 0.03 -0.17 -0.36 0.46 -0.13 -0.15 -0.24 1.00
a Descriptive statistics and correlations with Healthcare experts diffusion are calculated on a sample of 139 observations .
42
Table 2 Main Results a, b
a Significance levels: ** p < 0.01, * p < 0.05, + p < 0.10. b All models include alert year fixed-effects. Robust standard errors in parentheses.
Dependent Variable Healthcare experts diffusion Mass media diffusion Friday Model 1 2 3 4 5 6 7
Intercept 0.809
(0.742) 0.615
(0.715) 1.323** (0.455)
1.387** (0.445)
-2.480+ (1.290)
-2.388* (1.327)
-2.301 (1.461)
Friday - -0.501** (0.181)
- -0.261** (0.101)
- - -
Lobbying the FDA - - - - - 0.834** (0.299)
0.274 (0.459)
Lobbying the FDA x Severity - - - - - - 1.221+ (0.764)
Other lobbying - - - - -0.020 (0.024)
-0.002 (0.025)
0.001 (0.027)
Severity 0.433* (0.174)
0.358* (0.177)
0.136 (0.126)
0.130 (0.125)
-0.302 (0.377)
-0.332 (0.381)
-0.856+ (0.487)
Prior drugs firm 0.055
(0.079) 0.058
(0.076) -0.001 (0.061)
-0.016 (0.062)
-0.306+ (0.175)
-0.363* (0.181)
-0.349+ (0.193)
Prior alerts firm 0.017
(0.073) 0.008
(0.070) 0.002
(0.009) 0.002
(0.009) -0.024 (0.026)
-0.037 (0.026)
-0.041 (0.029)
Firm public 0.042
(0.151) 0.039
(0.145) 0.201* (0.085)
0.229* (0.083)
0.512+ (0.265)
0.162 (0.283)
0.188 (0.308)
Prior alerts drug 0.123
(0.120) 0.154
(0.117) 0.108** (0.034)
0.111* (0.034)
-0.028 (0.106)
-0.030 (0.108)
-0.026 (0.105)
Post-marketing 0.111
(0.189) 0.129
(0.183) -0.105 (0.101)
-0.101 (0.099)
0.321 (0.277)
0.351 (0.278)
0.318 (0.280)
Prior adverse effects -0.011 (0.040)
-0.019 (0.036)
0.098** (0.020)
0.095** (0.020)
-0.026 (0.067)
-0.042 (0.066)
-0.032 (0.066)
Other alerts 0.224
(0.283) 0.361
(0.303) 0.204+ (0.111)
0.240* (0.110)
1.042** (0.326)
1.047** (0.327)
1.067** (0.318)
Other drugs 0.189
(0.169) 0.084
(0.162) 0.134
(0.130) 0.100
(0.126) -0.670 (0.353)
-0.574 (0.354)
-0.605 (0.366)
Priority review -0.295 (0.191)
-0.230 (0.188)
-0.044 (0.098)
-0.034 (0.101)
0.046 (0.322)
0.050 (0.324)
0.095 (0.315)
Time since approval 0.153+ (0.091)
0.199* (0.089)
-0.122* (0.051)
-0.118* (0.051)
0.152 (0.153)
0.132 (0.152)
0.141 (0.157)
Observations Log Likelihood
139 -400.8
139 -397.3
441 -989.8
441 -986.2
416 -214.6
416 -210.9
416 -209.5
43
Table 3 Effectiveness of safety alerts a, b
a Significance levels: ** p < 0.01, * p < 0.05, + p < 0.10. b All models include alert year and day fixed-effects. Robust standard errors in parentheses.
Dependent Variable Total adverse events Serious adverse events Death adverse events Model 1 2 3 4 5 6 8 9 10
Intercept 0.331** (0.025)
0.331** (0.025)
0.336** (0.025)
0.024 (0.023)
0.019 (0.023)
0.024 (0.023)
-0.072** (0.013)
-0.073** (0.013)
-0.071** (0.012)
After -0.035** (0.005)
-0.035** (0.005)
-0.046** (0.006)
-0.020** (0.005)
-0.020** (0.005)
-0.028** (0.005)
-0.007** (0.003)
-0.007** (0.003)
-0.012** (0.003)
Friday - 0.052** (0.006)
0.031** (0.008)
- 0.014* (0.006)
0.002 (0.008)
- -0.010** (0.003)
-0.020** (0.004)
After x Friday - - 0.042** (0.011)
- - 0.031** (0.011)
- - 0.019** (0.006)
Severity -0.054** (0.007)
-0.052** (0.008)
-0.052** (0.008)
-0.074** (0.007)
-0.073** (0.007)
-0.073** (0.007)
-0.038** (0.004)
-0.038** (0.004)
-0.038** (0.004)
Prior drugs firm 0.019** (0.003)
0.023** (0.003)
0.023** (0.003)
-0.003 (0.003)
-0.002 (0.003)
-0.002 (0.003)
-0.017** (0.002)
-0.018** (0.002)
-0.018** (0.002)
Prior alerts firm 0.002** (0.001)
0.001** (0.001)
0.001** (0.001)
0.004** (0.001)
0.004** (0.001)
0.004** (0.001)
0.003** (0.001)
0.003** (0.001)
0.003** (0.001)
Firm public 0.019** (0.005)
0.016** (0.005)
0.016** (0.005)
-0.012** (0.005)
-0.014** (0.005)
-0.014** (0.005)
-0.001 (0.003)
-0.001 (0.003)
-0.001 (0.002)
Prior alerts drug 0.030** (0.003)
0.030** (0.003)
0.030** (0.003)
0.032** (0.003)
0.032** (0.003)
0.032** (0.003)
0.004+ (0.002)
0.004+ (0.002)
0.004+ (0.002)
Post-marketing 0.002
(0.006) -0.001 (0.006)
-0.001 (0.006)
0.011+ (0.005)
0.010+ (0.005)
0.010+ (0.005)
0.018** (0.003)
0.019** (0.003)
0.019** (0.003)
Prior adverse effects 0.917** (0.004)
0.915** (0.004)
0.915** (0.004)
0.602** (0.004)
0.602** (0.004)
0.602** (0.004)
0.181** (0.003)
0.181** (0.003)
0.181** (0.003)
Other alerts -0.054** (0.007)
-0.062** (0.007)
-0.062** (0.007)
-0.048** (0.007)
-0.051** (0.007)
-0.051** (0.007)
0.021** (0.004)
0.023** (0.004)
0.023** (0.004)
Other drugs -0.006 (0.006)
-0.006 (0.006)
-0.006 (0.006)
-0.014* (0.006)
-0.014* (0.006)
-0.014* (0.006)
-0.007* (0.003)
-0.007* (0.003)
-0.007* (0.003)
Priority review -0.009 (0.006)
-0.009 (0.006)
-0.009 (0.006)
0.033** (0.006)
0.034** (0.006)
0.034** (0.006)
0.051** (0.003)
0.051** (0.003)
0.051** (0.003)
Time since approval -0.032** (0.002)
-0.033** (0.002)
-0.033** (0.002)
0.007** (0.002)
0.007** (0.002)
0.007** (0.002)
0.009** (0.001)
0.009** (0.001)
0.009** (0.001)
Observations R2
78,554 0.530
78,554 0.530
78,554 0.531
62,264 0.407
62,264 0.407
62,264 0.407
62,264 0.178
62,264 0.178
62,264 0.178
44
Figure 1. Distribution of safety alerts.
Figure 2a and 2b. Distribution of safety alerts as a function of FDA lobbying.
Figure 3a and 3b. Distribution of severe safety alerts as a function of FDA lobbying.
Monday Tuesday Wednesday Thursday Friday
FDA Drug Alert Announcement Day
% o
f FD
A A
nno
unc
emen
ts
0.0
00
.05
0.1
00.
15
0.2
00
.25
Monday Tuesday Wednesday Thursday Friday
FDA Announcement Day without Lobbying
% o
f FD
A A
nno
unc
emen
ts
0.0
00.
05
0.1
00.
15
0.2
00
.25
0.3
00.
35
Monday Tuesday Wednesday Thursday Friday
FDA Announcement Day when Firms Lobby
% o
f FD
A A
nno
unc
emen
ts
0.0
00.
05
0.1
00.
15
0.2
00
.25
0.3
00.
35
Monday Tuesday Wednesday Thursday Friday
Severe Alerts Announcement Day without Lobbying
% o
f F
DA
Ann
oun
cem
ent
s
0.0
00
.05
0.1
00.
15
0.20
0.2
50.
30
0.3
5
Monday Tuesday Wednesday Thursday Friday
Severe Alerts Announcement Day when Firms Lobby
% o
f F
DA
Ann
oun
cem
ent
s
0.0
00
.05
0.1
00.
15
0.20
0.2
50.
30
0.3
5
45
Figure 4a. Effect of Lobbying the FDA on the probability of Friday.
Figure 4b. Effect of lobbying the FDA on the probability of Friday for severe safety alerts.
Friday Alerts & Lobbying
Predicted Probability of Fr iday Alert
Den
sity
0.0 0.1 0.2 0.3 0.4 0.5 0.6
05
1015
●
●
LobbyingNo Lobbying
Friday Alerts, Lobbying, and Alert Severity
Predicted Probability of Fr iday Alert
Den
sity
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
02
46
810
●
●
Severe Alert − LobbyingSevere Alert − No Lobbying