Question

What are three criticisms of the CPI?

   What are three criticisms of the CPI?

Macroeconomics for Today

Macroeconomics for Today

Irvin B. Tucker 6th Edition

Chapter 7, Problem 3

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Solved by Expert Md.Daniyal Arshad

10/02/2021

Step 1

Substitution bias: The CPI does not account for the fact that consumers may change their purchasing habits in response to changes in prices. For example, if the price of beef increases, consumers may switch to purchasing chicken instead. The CPI does not fully Show more…

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What are three criticisms of the CPI?

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Key Concepts

Substitution Bias

Substitution bias refers to the criticism that the measurement does not fully account for changes in consumer behavior when relative prices change, leading consumers to substitute cheaper goods for more expensive ones. This means that the index may overstate the cost of living by failing to capture the natural adaptation in consumer spending as a response to price changes.

Quality Adjustment Bias

Quality adjustment bias arises when improvements or variations in product quality are not adequately reflected in the price changes tracked by the index. As products evolve, especially with technological improvements, the adjustments made to account for these quality changes can be problematic and may lead to an overestimation of inflation if quality improvements are mistaken for price increases.

New Goods Bias

New goods bias is the criticism that the index may not immediately include newly introduced products, which can lead to an overstatement of inflation. Since new products often provide more value or are initially cheaper due to economies of scale, the delay in their inclusion in the measurement process means the index might not accurately reflect the improvements in consumer welfare over time.

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