Answer :
No, Carol's real income fell during that 10-year period.
[(30,000 ÷ 90 × 100) is > (65,000 ÷ 200 × 100)].
How Does the Consumer Price Index (CPI) Work?
The change in prices that American consumers pay each month is tracked by the Consumer Price Index (CPI). The CPI is calculated by the Bureau of Labor Statistics (BLS) as a weighted average of prices for a selection of goods and services that are indicative of overall consumer spending in the United States.
A common indicator of inflation and deflation is the CPI. The CPI report employs a different survey methodology, price sample, and index weights than the producer price index (PPI), which gauges changes in the prices paid by American producers of products and services.
What Purposes Does the CPI Serve?
Policymakers and the financial markets carefully monitor the CPI Index as an indicator of inflation. The cost of living adjustments for federal benefit payments is computed using a linked CPI metric.
How is the CPI determined?
When calculating the CPI, the Bureau of Labor Statistics takes a monthly sample of 94,000 prices and weights each index according to its share of recent consumer spending to determine the total change in prices. In the computation, the substitution impact is also taken into account, which occurs when customers divert their spending away from goods whose prices are rising relative to other goods.
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