Economic Policy Uncertainty and Emerging Stock Market Volatility

Maria Ghani () and Usman Ghani ()
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Maria Ghani: Southwest Jiaotong University
Usman Ghani: Southwest Jiaotong University

Asia-Pacific Financial Markets, 2024, vol. 31, issue 1, No 7, 165-181

Abstract: Abstract This research examines the effect of economic policy uncertainty (EPU) indices on Pakistan's stock market volatility. Particularly, we examine the impact of the economic policy uncertainty index for Pakistan and bilateral global trading partner countries, the US, China, and the UK. We employ the GARCH-MIDAS model and combination forecast approach to evaluate the performance of economic uncertainty indices. The empirical findings show that the US economic policy uncertainty index is a more powerful predictor of Pakistan stock market volatility. In addition, the EPU index for the UK also provides valuable information for equity market volatility prediction. Surprisingly, Pakistan and China EPU indices have no significant predictive information for volatility forecasting during the sample period. Lastly, we find evidence of all uncertainty indices during economic upheaval from the COVID-19 pandemic. We obtained identical results even during the Covid-19. Our findings are robust in various evaluation methods, like MCS tests and other forecasting windows.

Keywords: Economic policy uncertainty; Stock market volatility; GARCH-MIDAS model; MCS test; COVID-19 (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10690-023-09410-1

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