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Proxy SVAR identification of monetary policy shocks: MonteCarlo evidence and insights for the US

Helmut Herwartz, Hannes Rohloff and Shu Wang

No 404, University of Göttingen Working Papers in Economics from University of Goettingen, Department of Economics

Abstract: In empirical macroeconomics, proxy structural vector autoregressive models (SVARs) have become a prominent path towards detecting monetary policy (MP) shocks. However, in practice, the merits of proxy SVARs depend on the relevance and exogeneity of the instrumental information employed. Our Monte Carlo analysis sheds light on the performance of proxy SVARs under realistic scenarios of low relative signal strength attached to MP shocks and alternative assumptions on instrument accuracy. In an empirical application with US data we argue in favor of the specific informational content of instruments based on the dynamic stochastic general equilibrium model of Smets andWouters (2007). A joint assessment of the benchmark proxy SVAR and the outcomes of a structural covariance change model imply that from 1973 until 1979 monetary policy contributed on average between 2.2 and 2.4 units of inflation in the GDP deflator. For the so-called Volcker disinflation starting in 1979Q4, the benchmark structural model shows that the Fed's policy measures effectively reduced the GDP deflator within three years (i.e. by -3.06 units until 1982Q3). While the empirical analysis largely conditions ona small-dimensional trinity SVAR, the benchmark proxy SVAR shocks remain remarkably robust within a six-dimensional factor-augmented model comprising rich information from Michael McCracken's database (FRED-QD).

Keywords: structural vector autoregression; external instruments; proxy SVAR; heteroskedasticity; monetary policy shocks (search for similar items in EconPapers)
JEL-codes: C15 C32 C36 E47 (search for similar items in EconPapers)
Date: 2020
New Economics Papers: this item is included in nep-cba, nep-ecm, nep-ets, nep-mac, nep-mon and nep-ore
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