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Nominal Interest, Real Interest, and the Fisher Equation definitions

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  • Inflation
    General rise in prices over time, reducing the amount of goods or services money can buy.
  • Consumer Price Index
    Statistical measure tracking changes in the cost of a fixed basket of goods and services over time.
  • Nominal Interest Rate
    Percentage return on savings or cost of borrowing, as stated by financial institutions, unadjusted for inflation.
  • Real Interest Rate
    Interest rate adjusted for inflation, reflecting the true increase in purchasing power from saving or lending.
  • Purchasing Power
    Ability of money to buy goods or services, often diminished by rising prices.
  • Fisher Equation
    Approximate formula subtracting inflation from nominal interest to estimate the real interest rate.
  • Interest Rate
    Percentage expressing the cost of borrowing funds or the reward for saving, based on the original amount.
  • Deflation
    General decline in prices, increasing the value of money and potentially raising real interest above nominal.
  • Savings
    Money set aside, typically in a bank, to earn interest and potentially grow in value over time.
  • Widgets
    Hypothetical goods used in examples to illustrate changes in purchasing power and interest effects.
  • Financial Markets
    Systems where funds are borrowed and lent, with interest rates influenced by inflation and other factors.
  • Mini Porcelain Figurines
    Example goods used to demonstrate how inflation and interest rates affect what savings can purchase.
  • U.S. Interest Rates
    Historical data showing periods where inflation outpaced nominal returns, reducing real gains for savers.