Effects of Monetary Policy during Financial Market Crises and Regime Changes: An Empirical Evaluation Using a Nonlinear Vector Autoregression Model

Seewon Kim

Asian Economic Journal, 2018, vol. 32, issue 2, 105-123

Abstract: Using monthly data for Korea, this study examines nonlinear effects of monetary policy in association with financial market distress. The study uses a nonlinear vector autoregression model and finds that monetary policy becomes ineffective for addressing huge demand contractions in times of financial market turmoil or severe economic downturn, implying a structural change from a non†Keynesian to a Keynesian regime, such as a liquidity trap. Monetary contractions have stronger output effects than monetary expansions, particularly in times of financial distress. We found no evidence in favor of asymmetric effects of monetary shocks of different sizes. Finally, we also found financial shocks to have stronger effects on the real economy in times of financial distress than in normal times. The results have important policy implications for periods of financial turmoil or economic crisis.

Date: 2018
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