When actual inflation exceeds expected inflation ?

A. Unemployment is equal to the natural rate of unemployment
B. People will reduce their expectations of inflation in the future
C. Unemployment is greater than the natural rate of unemployment
D. Unemployment is less than the natural rate of unemployment

The original Phillips curve illustrates ?

A. the trade-off between inflation and unemployment
B. The trade-off between output and unemployment
C. The positive relationship between output and unemployment
D. The positive relationship between inflation and unemployment

A decrease the Price of foreign oil ?

A. Shifts the short-run Phillips curve downward and make the unemployment inflation trade-off less favorable
B. Shifts the short run Phillips curve upward and makes the unemployment inflation trade-off more favorable
C. Shifts the short run Phillips curve upward and makes the Unemployment inflation trade off more favorable
D. Shifts the short run Phillips curve downward and makes the unemployment inflation trade off more favorable

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