Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-1 Chapter 12

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-2 Chapter Summary  Objective: To explore the pattern of interest rates for different-term assets. The term structure under certainty Forward rates Theories of the term structure Measuring the term structure

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-3  Relationship between yield to maturity and maturity  Information on expected future short term rates can be implied from yield curve  The yield curve is a graph that displays the relationship between yield and maturity  Three major theories are proposed to explain the observed yield curve Overview of Term Structure of Interest Rates

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-4 Important Terms  Bond yields  Spot rates  Forward rates  Yield curve  Term structure or pure yield curve  Structure of forward rates  Using observed rates to predict future rates

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-5 Yields Maturity Upward Sloping Downward Sloping Flat Yield Curves

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-6 Term structure analysis under certainty  Assumption: Future one-period interest rates are known at time zero  Zero-coupon bond prices found from these rates  Yields on these zero-coupon bonds (spot rates) found from these prices  Under certainty, forward rates are equal to future short-term rates

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-7 Expected Interest Rates in Coming Years (Table 12.1) Expected One-Year Rates in Coming Years YearInterest Rate 0 (today) 8% 110% 211% 311%

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-8 Pricing of Bonds using Expected Rates PV n = Present Value of $1 in n periods r 1 = One-year rate for period 1 r 2 = One-year rate for period 2 r n = One-year rate for period n

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide 12-9 Long-Term Rates and Bond Prices using Expected Rates Time to Maturity Price of Zero*YTM 1$ % * $1,000 Par value zero

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Summary Reminder  Objective: To explore the pattern of interest rates for different-term assets. The term structure under certainty Forward rates Theories of the term structure Measuring the term structure

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Two Alternative Scenarios Alternative 2: Buy a two-year zero and reinvest proceeds in one-year zero 2-year investment 1-year investment = (1+r 3 ) = 100(1+y 2 ) 2 3-year investment = 100(1+y 3 ) 3 Alternative 1: Buy and hold a three-year zero

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide f n = one-year forward rate for period n y n = yield for a security with a maturity of n Forward Rates from Observed Long-Term Rates

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Example of Forward Rates using Table 12.2 Numbers 4 yr = 9.993;3yr = 9.660; fn = ? (1.0993) 4 = (1.0966) 3 (1+f n ) ( )/( ) = (1+f n ) f n = or 11%` Note: this is expected rate that was used in the prior example

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Downward Sloping Spot Yield Curve Zero-Coupon RatesBond Maturity 12% % % %4 9.25%5

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Forward Rates for Downward Sloping Yield Curve 1yr Forward Rates 1yr[(1.1175) 2 / 1.12] - 1 = yrs[(1.1125) 3 / (1.1175) 2 ] - 1 = yrs[(1.1) 4 / (1.1125) 3 ] - 1 = yrs[(1.0925) 5 / (1.1) 4 ] - 1 =

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Uncertainty and forward rates  Under certainty investors are indifferent between a short-term bond and a long- term bond sold before maturity, or between one long-term investment and a sequence of rolled-over short-term investments  Under uncertainty the strategy whose return does not depend on an unknown future bond price is less risky

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Summary Reminder  Objective: To explore the pattern of interest rates for different-term assets. The term structure under certainty Forward rates Theories of the term structure Measuring the term structure

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide  The Expectations Hypothesis  Liquidity Preference Upward bias over expectations  Market Segmentation Preferred Habitat Theories of Term Structure

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Expectations Theory  Observed long-term rate is a function of today’s short-term rate and expected future short-term rates  Long-term and short-term securities are perfect substitutes  Forward rates that are calculated from the yield on long-term securities are market consensus expected future short- term rates

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide  Long-term bonds are more risky  Investors will demand a premium for the risk associated with long-term bonds  Yield curve has an upward bias built into the long-term rates because of the risk premium  Forward rates contain a liquidity premium and are not equal to expected future short-term rates Liquidity Premium Theory

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Liquidity Premiums and Yield Curves Yields Maturity Liquidity Premium Forward Rates Observed Yield Curve

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Liquidity Premiums and Yield Curves Yields Maturity Liquidity Premium Forward Rates Observed Yield Curve

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide  Short- and long-term bonds are traded in distinct markets  Trading in the distinct segments determines the various rates  Observed rates are not directly influenced by expectations  Preferred Habitat Theory Modification of market segmentation Investors will switch out of preferred maturity segments if premiums are adequate Market Segmentation and Preferred Habitat Theories

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide What does the record say?  Yield curves are mostly upward-sloping  Liquidity premiums are hard to estimate and may not be constant  Inverted yield curves generally point to declining interest rates  Steeply rising yield curves are generally interpreted as signaling impending rate increases

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Summary Reminder  Objective: To explore the pattern of interest rates for different-term assets. The term structure under certainty Forward rates Theories of the term structure Measuring the term structure

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Measuring the term structure - The bootstrapping method  Derive spot rates from bond yields of varying maturities  Treat each coupon as a mini-zero coupon bond  Use bonds of progressively longer maturities, starting from T-bills  “Clean price” method and “dirty price” method

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Example: section 12.6, from Figure 11.1  Observe prices and yields on August 17, 2001; find the spot rate for December 1, 2002  Observed yields: 3.90%, 4.04% for 6M and 12M, respectively  Observed clean price for bond expiring on December 1, 2002: $  Dirty price = clean price + (time elapsed in semesters) x coupon

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Bootstrapping example (cont.)  Solving, we find y 3 =4.16% annually

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Using Spot Rates to price Coupon Bonds  A coupon bond can be viewed as a series of zero coupon bonds  To find the value, each payment is discounted at the zero coupon rate  Once the bond value is found, one can solve for the yield  It’s the reason for which similar maturity and default risk bonds sell at different yields to maturity

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Sample Bonds Assuming annual compounding AB Maturity4 years Coupon Rate6%8% Par Value1,000 Cash flow in Cash flow in 41,0601,080

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Calculation of Price Using Spot Rates (Bond A) PeriodSpot Rate Cash Flow PV of Cash Flow , Total978.54

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Calculation of Price Using Spot Rates (Bond B) PeriodSpot Rate Cash Flow PV of Cash Flow , Total1,047.56

Bodie Kane Marcus Perrakis RyanINVESTMENTS, Fourth Canadian Edition Copyright © McGraw-Hill Ryerson Limited, 2003 Slide Solving for the YTM Bond A  Bond Price =  YTM = 6.63% Bond B  Price = 1,  YTM = 6.61%