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Problems with the Consumer Price Index (CPI) definitions

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  • Consumer Price Index
    A measure using a fixed basket of goods to track changes in overall price levels and inflation within an economy.
  • Inflation
    A general increase in prices across an economy, reducing the purchasing power of money over time.
  • Fixed Basket
    A set group of goods and services whose prices are tracked over time to measure cost changes.
  • Substitution Bias
    A distortion in inflation measurement when consumers switch to cheaper alternatives, making price increases appear smaller.
  • New Goods Bias
    A distortion in inflation data when expensive new products are added, making it seem like prices are rising faster than they are.
  • Quality Bias
    A measurement issue where changes in product quality, not just price, cause inflation to be overstated or understated.
  • Aggregate Demand
    The total demand for goods and services within an economy at a given overall price level and time.
  • Bureau of Economic Analysis
    A government agency responsible for collecting and adjusting economic data, including inflation measures.
  • Fast Fashion
    A trend in clothing where cheaper, lower-quality items are produced quickly, affecting price and quality measurements.
  • Personal Computer
    An example of a new product whose introduction to the market can distort inflation measurement due to high initial prices.
  • Cell Phone
    A product whose frequent quality improvements can make price increases appear as inflation, even when value rises.
  • Name Brand
    A higher-priced, well-known product often replaced by cheaper alternatives, influencing substitution bias.
  • Store Brand
    A lower-priced alternative to name brands, often chosen during inflation, impacting CPI calculations.