Transcript Chapter 3
Chapter 3
Structure of Interest Rates
© 2001 South-Western College Publishing Company
Factors Affecting Yields Among
Securities
Debt securities offer different yields because
they exhibit different characteristics
Unfavorable characteristics result in higher
yields to entice investors
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Factors Affecting Yields Among
Securities
Security yields and prices are affected by levels
and changes in:
Default risk (also called Credit Risk)
Liquidity
Tax status
Term to maturity
Special contract provisions such as
embedded options
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Factors Affecting Yields Among
Securities
Credit (Default) Risk
Benchmark: Risk-free treasury securities
Default Risk Premium = Risky security yield Treasury security yield of same maturity
Risk premiums for a particular bond can
change over time
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Factors Affecting Yields Among
Securities
Credit (Default) Risk
Investors can assess default risk by
checking bond ratings set by Rating
Agencies
• Moody’s Investor Service
• Standard and Poor’s Corporation
Anticipated or actual ratings changes can
impact security prices and yields
Different bonds issued by the same firm can
differ in rating
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Factors Affecting Yields Among
Securities
Liquidity
A liquid investment is easily converted to
cash without a loss in value
Investors pay more (lower yield) for a more
liquid investment
• Securities with lower liquidity must offer a
higher yield
Short-term, low default risk, marketable
securities have higher liquidity
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Factors Affecting Yields Among
Securities
Tax Status
Investors are more concerned with after-tax
return or yield
Investors require higher yields for higher
taxed securities
Investors in high tax brackets benefit most
from tax-exempt securities
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Factors Affecting Yields Among
Securities
Term to Maturity
Interest rates typically vary by maturity
The term structure of interest rates defines
the relationship between maturity and yield
• The Yield Curve is the plot of current
interest yields versus time to maturity
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%
Yield
Time to Maturity
Years
An upward sloping yield curve indicates that Treasury
Securities with longer maturities offer higher annual yields
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Factors Affecting Yields Among
Securities
Special Provisions
Call Feature: enables borrower to buy back
the bonds before maturity at a specified price
• Call features are exercised when interest
rates have declined
• Investors demand higher yield on callable
bonds, especially when rates are expected
to fall
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Factors Affecting Yields Among
Securities
Special Provisions
Convertible Bonds
• Convertibility feature allows investors to
convert the bond into a specified number of
common stock shares
• Investors will accept a lower yield for
convertible bonds
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A Closer Look At the Term Structure
Theories Explaining Shape of Yield Curve
Pure Expectations Theory
Liquidity Premium Theory
Segmented Markets Theory
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A Closer Look At the Term Structure
Pure Expectations Theory
Long-term rates are average of current shortterm and expected future short-term rates
Yield curve slope reflects market
expectations of future interest rates
Investors select maturity based on
expectations
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A Closer Look At the Term Structure
Pure Expectations Theory
Assumes investor has no maturity
preferences and transaction costs are low
Long-term rates are averages of current short
rates and expected short rates
• Forward rate: market’s forecast of the
future interest rate
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A Closer Look At the Term Structure
Pure Expectations Theory
Upward Sloping Yield Curve
• Expected higher interest rate levels
• Expansive monetary policy
• Expanding economy
Downward Sloping Yield Curve
• Expected lower interest rate levels
• Tight monetary policy
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A Closer Look At the Term Structure
Liquidity Premium Theory
Investors prefer short-term, more liquid,
securities
Long-term securities and associated risks are
desirable only with increased yields
Explains upward sloping yield curve
When combined with the expectations theory,
yield curves could still be used to interpret
interest rate expectations
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A Closer Look At the Term Structure
Segmented Markets Theory
Theory explaining segmented, broken yield
curves
Assumes investors have maturity preference
boundaries, e.g., short-term vs. long-term
maturities
Explains why rates and prices vary
significantly between certain maturities
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A Closer Look At the Term Structure
Which Theory is Correct?
Although research results differ, there is
evidence that expectations theory, liquidity
preference theory, and segmented markets
theory all have some validity
• If term structure is used to assess
market’s expectations of future rates,
should net out liquidity premium and
unique segment characteristics
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A Closer Look At the Term Structure
Uses of the Term Structure
Forecast interest rates
Forecast recessions
Investment decisions
• Individuals
• Financial institutions
Financing decisions
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International Structure of Interest
Rates
Capital flows to the highest expected after-tax,
real (inflation and other risk-adjusted), foreign
exchange adjusted rates of return
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International Structure of Interest
Rates
Yield differences between countries are related
to:
Expected changes in forex rates
Varied expected real rates of return
Varied expected inflation rates
Varied country and business risk
Varied central bank monetary policy
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