... one refers to the common supply shock. In terms of the model there is an increase in 1B of 3 units, as there is in 1A . And there is an increase in 2B of 3 units, as there is in 2A . Step ... on the rate of unemployment in America, 1B is some other factors bearing on the rate of inflation in Europe, and 2B is some other factors bearing on the rate of inflation in America. The ... are the rate of unemployment in Europe, the rate of unemployment in America, the rate of inflation in Europe, the rate of inflation in America, the structural deficit ratio in Europe, and the...