A Counterfactual Economic Analysis of Covid-19 Using a Threshold Augmented Multi-Country Model

Chudik, Alexander; Mohaddes, Kamiar; Pesaran, Mohammad; Raissi, Mehdi; Rebucci, Alessandro

A Counterfactual Economic Analysis of Covid-19 Using a Threshold Augmented Multi-Country Model

Alexander Chudik, Kamiar Mohaddes, Mohammad Pesaran, Mehdi Raissi and Alessandro Rebucci ()
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Mehdi Raissi: International Monetary Fund, Washington DC, USA

No 1406, Working Papers from Economic Research Forum

Abstract: This paper develops a threshold-augmented dynamic multi-country model (TG-VAR) to quantify the macroeconomic effects of Covid-19. We show that there exist threshold effects in the relationship between output growth and excess global volatility at individual country levels in a significant majority of advanced economies and in the case of several emerging markets. We then estimate a more general multi-country model augmented with these threshold effects as well as long term interest rates, oil prices, exchange rates and equity returns to perform counterfactual analyses. We distinguish common global factors from trade-related spillovers, and identify the Covid-19 shock using GDP growth forecast revisions of the IMF in 2020Q1. We account for sample uncertainty by bootstrapping the multi-country model estimated over four decades of quarterly observations. Our results show that the Covid-19 pandemic will lead to a significant fall in world output that is most likely long-lasting, with outcomes that are quite heterogenous across countries and regions. While the impact on China and other emerging Asian economies are estimated to be less severe, the United States, the United Kingdom, and several other advanced economies may experience deeper and longer-lasting effects. NonAsian emerging markets stand out for their vulnerability. We show that no country is immune to the economic fallout of the pandemic because of global interconnections as evidenced by the case of Sweden. We also find that long-term interest rates could fall significantly below their recent lows in core advanced economies, but this does not seem to be the case in emerging markets

Pages: 41
Date: 2020-10-20, Revised 2020-10-20
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