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Due to historical differences, countries often differ in how quickly a change in actual inflation is incorporated into a change in expected inflation. In a country such as Japan, which has had very little inflation in recent memory, it will take longer for a change in the actual inflation rate to be reflected in a corresponding change in the expected inflation rate. In contrast, in a country such as Zimbabwe, which has recently had very high inflation, a change in the actual inflation rate will immediately be reflected in a corresponding change in the expected inflation rate.

Which of the following statements is true in regards to the short-run and long-run Phillips curves in these two types of countries?

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      What does this imply about the effectiveness of monetary and fiscal policy to reduce the unemployment rate?

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