... rate of interest, the rate of unemployment, the level of realnational income, the real quantity of money, the rate of growth of real nationalincome, or the rate of growth of the real quantity of ... a paper denying the existence of a long-run tradeoff between inflationand unemployment.Friedman and Phelps based their conclusions on classical principles of macro- economics, which we discussed ... aggregate-supply curve. Indeed, as Figure 3 3-4 illustrates, the vertical long-run Phillips curve and the vertical long-run aggregate-supply curve are two sides of the same coin. In panel (a) of this...