Why is a 5% three-year bond worth exactly its face value when the market rate is 5%, and worth more when rates fall?
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A coupon bond: coupon, maturity and face value
Define the coupon, the maturity and the face value, then draw the timeline for the 5% three-year bond with $1,000 face, writing its cash flow at dates 1, 2 and 3.
The price
Build the price by discounting each cash flow to today, evaluate the three terms at to reach par, and state that a rate below the coupon rate puts the price above par.
Pricing by auction versus pricing by discounting
Describe the auction route to a price, state that it agrees with the discounting route, and write out the argument that the auction is itself a present-value computation carried out date by date.
Risks beyond riskless valuation
List inflation, credit, timing through callability, liquidity and currency risk with a one-line description of each, and record the restriction to default-free debt such as U.S. government bonds for now.