文摘
I investigate Japanese monetary policy in a structural dynamic factor model covering 135 macroeconomic key variables. I compare the effects of a monetary policy shock before and after the implementation of quantitative easing in 2001. Before 2001, the policy shock has a strong positive effect on output and a modest effect on prices. After 2001, the policy shock has a positive, but weak and rather transitory, effect on output and a strong effect on prices.