Coenen, Günter Lombardo, Giovanni Smets, Frank Straub, Roland
ECB Working Paper 858
We use a version of the New Area-Wide Model (NAWM) developed at the ECB in order to quantify the gains from monetary policy cooperation. The model is calibrated in order to match a set of empirical moments. We then derive the cooperative and (open-loop) Nash monetary policies, assuming that the central banks’ objectives is to maximize the welfare of the households. Our results show that given the current degree of openness of the US and euro area economies, the gains from monetary policy coordination are small, amounting to 0.03 percent of steady-state consumption. Nevertheless, the gains appear to be sensitive to the degree of openness and further economic integration between the two regions could generate sizable gains from cooperation. For example, increasing the trade shares to 32 percent of GDP in both regions, the gains from cooperation rise to about 1 percent of steady-state consumption. By decomposing the sources of the gains from cooperation with respect to the various shocks, we show that mark-up shocks are the most important source for gains from international monetary policy cooperation.
DSGE International Policy Coordination New Area Wide Model two-country model