Google

The continuous updating of inflation expectations, which causes the Phillips curve to shift, is not a constant feature of all economic periods. Historically, there have been long spans of time where this mechanism was not active. For instance, Bill Phillips' original study of the UK economy covered a fifty-year period where the inflation-unemployment trade-off remained stable, indicating that expectations were not being constantly revised.

Historical Stability of Inflation Expectations

Examine the two economic scenarios described below. Based on the information provided, analyze the fundamental difference in how the public likely formed their views about future price changes in Era A compared to Era B, and explain how this difference accounts for the distinct economic outcomes.

Analyzing Economic Patterns Across Time

Imagine two distinct historical economic environments. In Environment A, which existed for many decades, people generally believed that the overall price level would remain stable over the long term, regardless of short-term fluctuations. In Environment B, which emerged later, people began to closely watch the annual change in prices and quickly adjusted their wage demands and pricing strategies based on the most recent trends.

Analyze how a one-time, significant increase in the cost of imported oil would likely affect the path of the general price level over the subsequent few years in Environment A versus Environment B. In your analysis, explain the key difference in the underlying public behavior that drives the different outcomes.

Comparing Economic Responses to a Supply Shock

The observed trade-off between the rate of inflation and the unemployment rate has been a consistently unstable and shifting relationship throughout all historical economic periods.

An economist observes that in a particular country during the 19th century, a 1% decrease in the unemployment rate was consistently associated with a 0.5% increase in the rate of inflation over several decades. However, in the late 20th century, this relationship broke down and became unpredictable. What is the most likely explanation for the initial stability of this trade-off?

Learn Before

Related