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Spring 2009 NBA 5060
Lecture 2 Basic Valuation and the Role of Accounting Numbers
1. Basic valuation theory
2. The relation between earnings and returns
3. Additional Notes: Deriving the Residual Income Model
Teaching AssistantsRuchit Agarwal [email protected] Bhargava [email protected] DMello [email protected] Wu [email protected]
For 01/27/08:
Familiarize yourself with the 10-K for Cracker Barrel (CBRL). We will be applying allthe tools we learn in class to CBRL. You can download the 10-K from the SEC Edgarwebsite (http://www.sec.gov/edgar.shtml).
Answer questions on handout regarding the Companys industry, strategy, andaccounting policies.
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http://www.sec.gov/edgar.shtmlhttp://www.sec.gov/edgar.shtmlhttp://www.sec.gov/edgar.shtmlhttp://www.sec.gov/edgar.shtml -
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Valuation
Economic theory teaches that the value of any resources equals thepresent value of the payoffs expected from the resource, discounted at arate compensating for the inherent risk & delayed consumption of thepayoffs.
The first financial model for common equity (and the basis for all modelsused today) is the dividend-discounting model:
+=
=
+1 )1(j
je
jtttr
DividendsEValueEquity
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Residual Income Valuation
The basic assumption is the clean surplus relation. Essentially, we need:
BVEt= BVEt-1 + Net Incomet Dividendst
Where dividends include net capital transactions (issuance less repurchaseof equity).
Then, using the dividend-discounting model, we get the following (see lastpage of notes for a derivation):
( ) ( )...
)1()1( 21 +
++
++= +++
e
te2tt
e
te1tttt
r
BVEr-NIE
r
BVEr-NIEBVEValueEquity
Thus, the residual income valuation model is very straightforward in theory.
It simply states that the value of an investment is equal to the amountinvested, plus the present value of all future abnormal earnings or residualincome.
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Residual Income is simply
earnings less a charge forthe use of capital
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The Residual Income Model reformulated in terms of ROEs:
Define ROE as to be earnings divided by beginning total equity. That is,
ROEt= NIt / BVEt-1
Then, substitute NIt+1 = ROEt+1*BVEt into the above equation to get:
( )[ ] ( )( )[ ]
)1()1( 211 +
++
++= +++
e
te2tt
e
tetttt
r
BVEr-ROEE
r
BVEr-ROEEBVEValueEquity
Thus, equity value is simply the book value of equity plus the present valueof future abnormal returns on equity, weighted by the BVE outstanding atthe time.
Why focus on earnings and book values?
But, is the focus on accounting numbers justified?
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Nichols and Wahlen (2004): How do accounting numbers relate tostock returns?
Figure 1The Three Links Relating Earnings to Stock Returns
Current Period Earnings
Link 1
Link 1 assumes that currentperiod earnings numbers
provide information that equityshareholders can use to form
expectations for future earnings.
Expected FutureEarnings
Test:How do earnings
numbers relate toshare prices?
Link 2
Link 2 assumesthat current andexpected future
profitabilitydetermines thefirms expectedfuture dividend-paying capacity.
Current Share Price
Link 3
Link 3 assumes that shareprices reflect the present valueof all expected future dividends.
Expected FutureDividends
Remember, price depends on the information known to the market at time t.If information changes from period t to period t+1, price should changebetween those dates.
Thus, it is important to isolate the new information in earnings whenexamining the association between earnings and returns.
To make sure the changes in price reflect revised expectations of payoffsand not just differences in risk, we subtract returns on a portfolio of firmswith comparable size.
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Testing the three links: The relation between earnings changes andstock returns
Compare earnings this year (t) to earnings last year (t-1). If the change ispositive, put the firm in one portfolio; if the change is negative, put the firmin another portfolio. Do the same thing for operating cash flows.
The average abnormal returns of the portfolios are graphically depictedbelow.
Testingthe threelinks,
continued: Sign and magnitude of earnings changes
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Instead of forming portfolios on just the sign of the change, group firms into10 portfolios based on the magnitude of earnings (scaled by assets to allowcross-sectional comparability).
Testinglink 1:Earnings
persistence and stock returns
If new earnings will persist, then the new earnings should have a greatereffect on price.
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Is themarket
completely efficient with respect to accounting information?
Rank all firms based on the magnitude of their quarterly earnings surpriseusing analyst forecasts 60 days before the announcement as anexpectation.
Take a long position in the 10% of firms with the greatest unexpectedearnings, and an offsetting short position in the 10% of firms with the lowest
unexpected earnings. Hold these stocks for either 60 (trading) days.
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Nichols and Wahlen (2004): Summary and Takeaways
Accounting earnings capture many of the same events affecting firm valuethat are reflected in price.
The accrual accounting process starts with cash flows and addsinformation about transactions and events during the year to arrive at amore useful measure of firm performance (earnings).
The information in accounting earnings is credible, despite concerns ofearnings management.
In some cases, the accounting system provides new information to thecapital markets.
Evidence strongly suggests that stock prices are not fully efficient withrespect to accounting information.
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Additional Notes: Deriving the Residual Income Model from the DDM
Recall that we can define dividends as follows:
Dividends1 = Net Income1 Change in Common Equity1 = NI1 (BVE1 BVE0)
Thus, we can express the value of the equity as follows (expectation operators areomitted for simplicity):
( ) ( )
...)1()1(
...)1()1()1()1()1()1(
...)1(
)1()1(
)1(
...)1()1(
...
)1()1(
...)1()1(
2 100
222
100
21100
2
111000
2
10
2
10
++
++
+=
++
++
+
+
++
+
+
+=
++
++++
++=
++
+++
+
++=
+
+
++
+
+=
++
++
=
e
e2
e
e1
e
2
e
2
e
e2
e
1
e
1
e
e1
e
e2e2
e
e1e1
e
e2e2
e
e1e1
e
22
e
11
e
22
e
11
0
r
BVErNI
r
BVErNIBVE
r
VEB
r
VEB
r
BVErNI
r
VEB
r
VEB
r
BVErNIBVE
rBVErVEB-BVErNI
rBVErVEB-BVErNI
r
BVErBVEVEB-BVErNI
r
BVErBVEVEB-BVErNI
r
BVEVEB-NI
r
BVEVEB-NI
r
BVE-VEB-NI
r
BVE-VEB-NIValue
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Add and subtract reBVE0 (sum=0). We can thenrearrange to express value as a function ofbeginning BVE and future residual income.
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This works as long as
0)1(
lim 1 =+
T
e
T
T r
BVE
. But thanks to our steady state assumption,
BVEgrows at gin perpetuity, and g< (1+re).
Lecture 2 Page 12 of 12