The Incidence of Spillover Effects during the Unconventional Monetary Policies Era

Demetrio Lacava and Luca Scaffidi Domianello
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Demetrio Lacava: Departement of Economics, University of Messina, 98122 Messina, Italy
Luca Scaffidi Domianello: Departement of Economics, University of Messina, 98122 Messina, Italy

JRFM, 2021, vol. 14, issue 6, 1-18

Abstract: In a context characterized by an increasing integration among financial markets, we aim to analyze whether the ECB unconventional monetary policy shields the Eurozone stock markets against spillovers of volatility from the US stock market. We augment the Markov switching Asymmetric Multiplicative Error Model (MS-AMEM) with exogenous variables to measure transmissions of volatility from the S&P500 index, on the one hand, and the announcement and implementation effects of unconventional policy, on the other hand. By estimating our model, the MS-AMEMX, on a sample of daily observations of the realized volatility of four Eurozone stock indices (CAC40, DAX30, FTSEMIB and IBEX35), we find how the increase in volatility brought about by volatility spillovers was mitigated by the implementation of unconventional policy, with a higher benefit for high-debt countries’ stock indices (FTSEMIB and IBEX35). Finally, the out-of-sample analysis certifies the suitability of our proxies also for forecasting purposes.

Keywords: realized volatility; spillover effects; unconventional monetary policy; multiplicative error model; Markov switching (search for similar items in EconPapers)
JEL-codes: C E F2 F3 G (search for similar items in EconPapers)
Date: 2021
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