Face Masks Considerably Reduce COVID-19 Cases in Germany - a Synthetic Control Method Approach

49 Pages Posted: 13 Aug 2020

See all articles by Timo Mitze

Timo Mitze

University of Southern Denmark

Reinhold Kosfeld

University of Kassel - Economics

Johannes Rode

Technische Universität Darmstadt

Klaus Wälde

affiliation not provided to SSRN

Multiple version iconThere are 2 versions of this paper

Date Written: 2020

Abstract

We use the synthetic control method to analyze the effect of face masks on the spread of COVID-19 in Germany. Our identification approach exploits regional variation in the point in time when wearing of face masks became mandatory in public transport and sales shops. Depending on the region we consider, we find that face masks reduced the number of newly registered SARS-CoV-2 infections between 15% and 75% over a period of 20 days after their mandatory introduction. Assessing the credibility of the various estimates, we conclude that face masks reduce the daily growth rate of reported infections by around 47%.

Keywords: Covid-19, public health measures, face masks, synthetic control method

Suggested Citation

Mitze, Timo and Kosfeld, Reinhold and Rode, Johannes and Wälde, Klaus, Face Masks Considerably Reduce COVID-19 Cases in Germany - a Synthetic Control Method Approach (2020). CESifo Working Paper No. 8479, Available at SSRN: https://ssrn.com/abstract=3672069

Timo Mitze (Contact Author)

University of Southern Denmark ( email )

Campusvej 55
DK-5230 Odense, 5000
Denmark

Reinhold Kosfeld

University of Kassel - Economics ( email )

Nora-Platiel Str. 4
34109 Kassel
Germany

Johannes Rode

Technische Universität Darmstadt ( email )

Chair of International Economics
Hochschulstraße 1
Darmstadt, 64289
Germany

HOME PAGE: http://www.vwl2.wi.tu-darmstadt.de/rode

Klaus Wälde

affiliation not provided to SSRN

No Address Available

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