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.
- 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.