MIT News – “The price is right”

How a new online tool can help measure inflation as accurately as — and more quickly than — traditional methods.
Inflation is a crucial economic indicator, since rising prices can hurt consumers and trigger political discontent. It is also hard to measure. In the United States, Bureau of Labor Statistics employees track over 20,000 prices in person or via phone, which are then aggregated into the Consumer Price Index, a monthly gauge of price levels.

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