math in the news: 8/22/11
TRANSCRIPT
8/22/11
Treasury Bonds• To generate cash the
U.S. Treasury Dept. prints and sells Treasury Bills, Bonds, and other similar types of notes.
Treasury Bonds• Purchasing a
Treasury Note means that you are lending money to the U.S. government. In exchange, the government will pay you back the money with interest.
Treasury Bonds• This is how a
Treasury Note works. – The government will
issue a note with a face value of $1000.
– Your cost for the note is less than $1000, e.g., $990.
– When the note matures, the government pays you $1000.
– The interest you earn is the difference between the $1000 and the price you paid.
Face value: $1000
Your cost:<$1000
Treasury Bonds• The amount of time
needed to earn back the money paid and interest is known as the Maturity.
• Treasury Bills can have Maturities of 3 months or 6 months.
• To calculate the interest earned, use this formula.
FV = Face Value of the NotePP = Purchase Price of the NoteM = Maturity
Treasury Bonds• The Treasury Dept.
auctions Treasury securities several times throughout the year. These include:
– T Bills– Treasury Notes– Treasury Bonds– TIPS
• This table shows the results of a recent Treasury auction.
• Let’s look at a 13- week T Bill.
Treasury Bonds• Using the interest
formula, we find that the interest on the T Bill is 0.035%.
• This is not a very high percent. Why is it so low?
FV = $1000PP = $999.91M = Maturity
Treasury Bonds• In fact, the yield on all
Treasury securities varies. This chart shows the change in 3-month T Bills from 2007 to 2011.
• Note how the interest rates have significantly decreased.
• This reflects the slowdown in the U.S. economy over the past few years.
Treasury Bonds• Treasury securities
are still a good investment for a number of reasons:
– Backed by the U.S. government
– A guaranteed return on investment