Chapter 5: The Behavior of Interest Rates

The Behavior of Interest Rates

Overview

  • Examines the determination of nominal interest rates and influencing factors.

Learning Objectives

  • 5.1 Identify factors affecting asset demand.
  • 5.2 Draw bond market demand and supply curves; identify equilibrium interest rate.
  • 5.3 List and describe factors affecting equilibrium interest in the bond market.
  • 5.4 Describe connection between bond market and money market via liquidity preference.
  • 5.5 Describe factors affecting money market and equilibrium interest.
  • 5.6 Identify effects of money growth changes on interest rates over time.

Determinants of Asset Demand

  • Assets: Items with value that can be owned (e.g., money, stocks, land, machinery).
  • Factors affecting asset demand:
    • Wealth: Total resources owned by an individual.
    • Expected Return: Anticipated return on an asset compared to alternatives.
    • Risk: Uncertainty regarding returns compared to other assets.
    • Liquidity: Ease of converting assets to cash relative to alternatives.

Theory of Portfolio Choice

  • Relationship between asset demand and various factors:
    • Quantity demanded rises with increased wealth.
    • Quantity demanded rises with expected returns compared to alternatives.
    • Quantity demanded falls as risk increases compared to alternatives.
    • Quantity demanded rises with higher liquidity compared to alternatives.
  • Response Summary Table:
    • Wealth: Upward -> Upward
    • Expected Return: Upward -> Upward
    • Risk: Upward -> Downward
    • Liquidity: Upward -> Upward

Supply and Demand in the Bond Market

  • Price and Interest Rate Relationship:
    • At lower prices (higher interest), quantity demanded of bonds rises (inverse relationship).
    • At lower prices (higher interest), quantity supplied of bonds falls (positive relationship).

Market Equilibrium

  • Equilibrium occurs when quantity demanded equals quantity supplied at a given price.
  • Excess demand leads to rising prices and falling interest rates; excess supply leads to falling prices and rising interest rates.

Changes in Equilibrium Interest Rates

  • Shifts in Demand Curve for Bonds:
    • Wealth: Demand increases in economic expansion.
    • Expected Returns: Higher future rates lower long-term bond demand.
    • Expected Inflation: Rising inflation expectations decrease bond demand.
    • Risk: Increased riskiness shifts demand left.
    • Liquidity: Increased liquidity of bonds shifts demand right.

Shifts in the Supply of Bonds

  • Factors shifting bond supply curve:
    • Profitability of Investments: Higher expected profitability shifts supply right during expansions.
    • Expected Inflation: Anticipated inflation increases bond supply.
    • Government Budget Deficits: Increased deficits shift supply right.

Supply and Demand in the Money Market

  • Liquidity Preference Framework:
    • Determines equilibrium interest rates via supply and demand for money.
    • Money and bonds are two main categories for wealth storage.

Demand for Money in Liquidity Preference

  • As interest rates increase:
    • Opportunity cost of holding money increases.
    • Expected return of money decreases.
    • Quantity of money demanded decreases.

Changes in Equilibrium Interest Rates in Money Market

  • Demand Shifts:
    • Higher income increases money demand and shifts right.
    • Rising price levels increase demand and shift right.
  • Supply Shifts:
    • Supply controlled by central bank; increases shift right.

Money, Prices, and Interest Rates

  • A one-time increase in money supply raises prices permanently, raising interest rates.
  • Inflation Expectation: Price-level increases prompt higher interest rates because of expected inflation.

Effects of Money Supply Growth on Interest Rates

  • Liquidity Effect: Initial view is that increased money supply lowers interest rates.
  • Income Effect: A rise in demand affects interest rates upward due to economic expansion.
  • Price-Level Effect: Increased money supply raises inflation expectations, increasing interest rates.
  • Expected Inflation Effect: Increased money supply leads to higher anticipated price levels, increasing interest rates.

Graphical Representation of Effects

  • Graphical summaries illustrate relationships between equilibrium shifts in bond and money markets, showing how interest rates change in response to various economic factors.

Conclusion

  • Understanding interest rate dynamics involves analyzing asset demand, bond market behaviors, and liquidity preference interactions in money markets, considering influences like inflation, risk, and economic conditions.