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Inflation and Consumer Price Index (CPI) quiz

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  • What does inflation measure in an economy?
    Inflation measures the general rise in prices across an entire economy, not just individual products.
  • How is inflation different from a price increase in a single product?
    A price increase in a single product does not indicate inflation; inflation refers to a rise in the overall price level of all goods and services in the economy.
  • What is a 'basket of goods' in the context of measuring inflation?
    A basket of goods is a collection of various products from different parts of the economy used to track changes in overall prices over time.
  • What is the Consumer Price Index (CPI)?
    The CPI is an index that tracks the cost of a typical basket of goods purchased by households over time to measure inflation.
  • How does the government determine what goes into the CPI basket of goods?
    The government surveys households to find out what goods and services they typically purchase and uses this information to create the basket.
  • What is the formula for calculating the CPI for a given year?
    CPI = (Cost of basket in current year / Cost of basket in base year) × 100.
  • What is always true about the CPI in the base year?
    The CPI in the base year is always 100 because the cost of the basket in the current year and base year are the same.
  • How do you calculate the inflation rate between two years using CPI?
    Inflation rate = (CPI in current year − CPI in previous year) / CPI in previous year × 100.
  • Why don't we calculate an inflation rate for the base year?
    We don't calculate an inflation rate for the base year because there is no previous year to compare it to.
  • If the CPI in 2018 is 108.71 and in 2017 is 100, what is the inflation rate from 2017 to 2018?
    The inflation rate is (108.71 − 100) / 100 × 100 = 8.71%.
  • When calculating CPI for years after the base year, what value do you always use in the denominator?
    You always use the cost of the basket in the base year as the denominator.
  • What does a CPI of 122 in 2019 mean compared to the base year?
    A CPI of 122 means that the basket of goods costs 22% more in 2019 than it did in the base year.
  • What is the main purpose of calculating the inflation rate?
    The main purpose is to measure how much the overall price level has changed from one year to the next.
  • Why is it important to distinguish between 'price level' and 'price' in economics?
    Price refers to the cost of an individual product, while price level refers to the average of all prices in the economy.
  • How does the real-world CPI basket differ from classroom examples?
    The real-world CPI basket includes many categories like housing, food, transportation, and more, while classroom examples usually use just a few products for simplicity.