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Interest Rates

Interest Rates. Interest Rates and Inflation. If the nominal interest rate is 10% and the inflation rate is 15%, how much is the REAL interest rate? Real Interest Rates- The percentage increase in purchasing power that a borrower pays. (adjusted for inflation)

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Interest Rates

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  1. Interest Rates

  2. Interest Rates and Inflation If the nominal interest rate is 10% and the inflation rate is 15%, how much is the REAL interest rate? Real Interest Rates- The percentage increase in purchasing power that a borrower pays. (adjusted for inflation) Real = nominal interest rate - expected inflation Nominal Interest Rates- the percentage increase in money that the borrower pays not adjusting for inflation. Nominal = Real interest rate + expected inflation

  3. Example #1: • You lend out $100 with 20% interest. Inflation is 15%. • A year later you get paid back $120. • What is the nominal and what is the real interest rate? • Nominal interest rate is 20%. Real interest rate was 5% • Example #2: • You lend out $100 with 10% interest. Prices are expected to increased 20%. In a year you get paid back $110. • What is the nominal and what is the real interest rate? • Nominal interest rate is 10%. Real rate was –10%

  4. Loanable Funds Market 4

  5. Is an interest rate of 50% good or bad? • Bad for borrowers but good for lenders • The loanable funds market is the private sector supply and demand of loans. • This market shows the effect on REAL INTEREST RATE • Demand- Inverse relationship between real interest rate and quantity loans demanded • Supply- Direct relationship between real interest rate and quantity loans supplied • This is NOT the same as the money market. (supply is not vertical)

  6. Loanable Funds Market At the equilibrium real interest rate the amount borrowers want to borrow equals the amount lenders want to lend. Real Interest Rate SLenders re DBorrowers QLoans Quantity of Loans 6

  7. Loanable Funds Market • Example: The Gov’t increases deficit spending? • Government borrows from private sector • Increasing the demand for loans Real Interest Rate SLenders • Real interest rates increase causing • crowding out!! r1 re D1 DBorrowers QLoans Q1 Quantity of Loans 7

  8. Loanable Funds Market Demand Shifters Supply Shifters • Changes in perceived business opportunities • Changes in government borrowing • Budget Deficit • Budget Surplus • Changes in private savings behavior • Changes in public savings • Changes in foreign investment • Changes in expected profitability 8

  9. 2007B Practice FRQ 9

  10. 2007B Practice FRQ 10

  11. 2007B Practice FRQ 11

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