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Michaelis, Henrike and Watzka, Sebastian (June 2014): Are there Differences in the Effectiveness of Quantitative Easing in Japan over Time? Discussion Papers in Economics 2014-35 [PDF, 1MB]

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Using a time-varying parameter vector autoregression (TVP-VAR) with a new sign restriction framework, we study the changing effectiveness of the Bank of Japan's Quantitative Easing policies over time. We analyse the Zero-Interest Rate Policy from 1999 to 2000, the Quantitative Easing Policy from 2001 to 2006, and most recently the ‘Abenomics' monetary policy easing strategy. Our results indicate that there are important differences concerning the effects of Quantitative Easing over time. We find a stronger and longer lasting positive influence of QE shocks on real GDP and CPI especially since 2013. This might reflect the influence of the ‘Abenomics' program.

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