Which Equation Summarize the Analysis of Friedman and Phelps (Where

Multiple Choice

Which equation summarize the analysis of Friedman and Phelps (where a is a positive number) ?

A) unemployment rate = natural rate of unemployment - a(actual inflation - expected inflation)
B) unemployment rate = natural rate of unemployment - a(expected inflation - actual inflation)
C) unemployment rate = expected rate of inflation - a(actual inflation - expected inflation)
D) unemployment rate = actual rate of inflation - a(actual unemployment - expected unemployment)