[COVID-19, Influenza and Economic Activity - An Impact Analysis Perspective]. / COVID-19, Grippewellen und ökonomische Aktivität ­ die Perspektive der Wirkungsanalyse.

The German debate about the policy implications of the coronavirus becomes increasingly heated given different views on the mortality rate from SARS CoV-2, as well as the epidemiological and economic impact of lockdown measures imposed by the government. Impact analysis applying features of randomised control trials would provide clear evidence. However, this is currently unavailable due to a lack of an appropriate control group of countries without measures. Thus, polarisation is likely to rise if observed mortality rates remain low.

The impact of government responses to the COVID-19 pandemic on GDP growth: Does strategy matter?

We analyze whether and to what extent strategies employed by governments to fight the COVID-19 pandemic made a difference for GDP growth developments in 2020. Based on the strength and speed with which governments imposed non-pharmaceutical interventions (NPIs) when confronted with waves of infections we distinguish between countries pursuing an elimination strategy and countries following a suppression / mitigation strategy. For a sample of 44 countries fixed effect panel regression results show that NPI changes conducted by elimination strategy countries had a less severe effect on GDP growth than NPI changes in suppression / mitigation strategy countries: strategy matters. However, this result is sensitive to the countries identified as "elimination countries" and to the sample composition. Moreover, we find that exogenous country characteristics drive the choice of strategy. At the same time our results show that countries successfully applying the elimination strategy achieved better health outcomes than their peers without having to accept lower growth.

COVID-19: Lockdowns, Fatality Rates and GDP Growth: Evidence for the First Three Quarters of 2020.

The COVID-19 pandemic has triggered an unprecedented economic crisis. This article analyses the impact of mandatory social distancing imposed by lockdown policies and voluntary social distancing triggered by COVID-19 fatality rates on GDP growth in the first three quarters of 2020 for a sample of 42 countries. OLS and IV results indicate an important role for the fatality rate, while panel regressions show that lockdown stringency is the more important driver of growth. When including lagged variables, more restrictive measures lead to lower GDP growth in the same quarter but are associated with a positive, catching-up effect in the following quarter.

COVID-19 and Economic Growth: Does Good Government Performance Pay Off?

The coronavirus pandemic led to substantial revisions of 2020 GDP growth projections. We analyse whether and to what extent the quality of government policies in handling the health aspects of the crisis influence cross-country differences in the economic impact of the pandemic as projected by the OECD, the IMF and the World Bank. We measure policy quality by a recently published Economist Intelligence Unit index and a COVID-19 Misery index combining the stringency of government-imposed distancing measures with the COVID-19 fatality rate. Moreover, we control for international spillovers captured by trade openness and export exposure to tourism. Results for most specifications show that good government performance pays off as the respective countries record less severe revisions of growth forecasts. Only in a few cases, our findings suggest that the pandemic's global effect might be so strong that actions by individual governments do not affect cross-country differences of growth revisions. Finally, there is broad evidence supporting the view that a country's exposure to the global economy influences its growth outlook relative to other countries.