债券市场分析与策略第7版答案2

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1、CHAPTER 2PRICING OF BONDSCHAPTER SUMMARYThis chapter will focus on the time value of money and how to calculate the price of a bond. When pricing a bond it is necessary to estimate the expected cash flows and determine the appropriate yield at which to discount the expected cash flows. Among other a

2、spects of a bond, we will look at the reasons why the price of a bond changesREVIEW OF TIME VALUE OF MONEYMoney has time value because of the opportunity to invest it at some interest rate.Future ValueThe future value of any sum of money invested today is:Pn = P0(1+r)nwhere n = number of periods, Pn

3、 = future value n periods from now (in dollars), P0 = original principal (in dollars), r = interest rate per period (in decimal form), and the expression (1+r)n represents the future value of $1 invested today for n periods at a compounding rate of r.When interest is paid more than one time per year

4、, both the interest rate and the number of periods used to compute the future value must be adjusted as follows:r = annual interest rate / number of times interest paid per year, andn = number of times interest paid per year times number of years.The higher future value when interest is paid semiann

5、ually, as opposed to annually, reflects the greater opportunity for reinvesting the interest paid.Future Value of an Ordinary AnnuityWhen the same amount of money is invested periodically, it is referred to as an annuity. When the first investment occurs one period from now, it is referred to as an

6、ordinary annuity.The equation for the future value of an ordinary annuity is:Pn =where A is the amount of the annuity (in dollars).Example of Future Value of an Ordinary Annuity Using Annual Interest:If A = $2,000,000, r = 0.08, and n = 15, then Pn = P15 = = $2,000,00027.152125 = $54,304.250.Because

7、 15($2,000,000) = $30,000,000 of this future value represents the total dollar amount of annual interest payments made by the issuer and invested by the portfolio manager, the balance of $54,304,250 $30,000,000 = $24,304,250 is the interest earned by reinvesting these annual interest payments.Exampl

8、e of Future Value of an Ordinary Annuity Using Semiannual Interest:Consider the same example, but now we assume semiannual interest payments.If A = $2,000,000 / 2 = $1,000,000, r = 0.08 / 2 = 0.04, n = 2(15) = 30, thenPn = P30 = = =$1,000,00056.085 = $56,085,000.The opportunity for more frequent rei

9、nvestment of interest payments received makes the interest earned of $26,085,000 from reinvesting the interest payments greater than the $24,304,250 interest earned when interest is paid only one time per year.Present ValueThe present value is the future value process in reverse. We have:.For a give

10、n future value at a specified time in the future, the higher the interest rate (or discount rate), the lower the present value. For a given interest rate (discount rate), the further into the future that the future value will be received, then the lower its present value.Present Value of a Series of

11、 Future ValuesTo determine the present value of a series of future values, the present value of each future value must first be computed. Then these present values are added together to obtain the present value of the entire series of future values.Present Value of an Ordinary AnnuityWhen the same d