Monetary policy, relative prices and inflation rate: an evaluation based on New Keynesian Phillips Curve for the U.S. economy Tito Belchior Silva Moreira* Department of economy, Catholic University of Brasilia, Brazil:
[email protected] Mario Jorge C. Mendonça Department of economics, Institute for Applied Economic Research, Rio de Janeiro, Brazil:
[email protected] Adolfo Sachsida Department of economics, Institute for Applied Economic Research, Brasília, Brazil:
[email protected] Paulo Roberto Amorim Loureiro Department of economics, University of Brasilia, Brasília, Brazil:
[email protected] Abstract This paper investigates the direct impact of monetary policy on variation to the relative prices and, in turn, the direct effect of the change in relative prices on the inflation rate considering the New Keynesian Phillips Curve (NKPC). Thus, we analyze the indirect impact of the change of Federal Funds Rate on the inflation rate through the change in relative prices. We use GMM with instrumental variables to estimate several systems of two equations for the U.S. economy based on quarterly time-series from 1975 to 2015. The empirical results show that a change of the Funds Rate has a direct effect on change in relative prices and that, in turn, affects indirectly the inflation rate, through the change in relative prices. Hence, change in the relative prices affects directly the inflation rate via NKPC. In this context, variations of relative prices can be interpreted as a transmission channel of monetary policy. Furthermore, there are empirical evidences that the change of relative prices Granger-cause the inflation rate. Key words: Monetary policy, relative prices, inflation rate, NKPC, U.S.