Après-ski: The Spread of Coronavirus from Ischgl through Germany, with Gabriel Felbermayr and Julian Hinz. German Economic Review, 2021.

Working Papers

Brothers in arms: The value of coalitions in sanctions regimes, with Julian Hinz, Katrin Kamin and Joschka Wanner. Submitted.

Abstract: This paper examines the impact of coalitions on the economic costs of the 2012 Iran and 2014 Russia sanctions. By estimating and simulating a quantitative general equilibrium trade model under different coalition set-ups, we (i) dissect welfare losses for sanction-senders and target; (ii) compare prospective coalition partners and; (iii) provide bounds for the sanctions potential — the maximum welfare change attainable — when sanctions are scaled vertically, i.e. across sectors up to an embargo, or horizontally, i.e. across countries up to a global regime. To gauge the significance of simulation outcomes, we implement a Bayesian bootstrap procedure that generates confidence bands. We find that the implemented measures against Iran and Russia inflicted considerable economic harm, yielding 32 – 37% of the vertical sanctions potential. Our key finding is that coalitions lower the average welfare loss incurred from sanctions relative to unilateral implementation. They also increase the welfare loss imposed on Iran and Russia. Adding China to the coalition further amplifies the welfare loss by 79% for Iran and 22% for Russia. Finally, we quantify transfers that would equalize losses across coalition members. These hypothetical transfers can be seen as a sanctions-equivalent of NATO spending goals and provide a measure of the relative burden borne by coalition countries.

Trade Liberalization along the Firm Size Distribution: The Case of the EU-South Korea FTA, with Gabriel Felbermayr. CESifo Working Paper No. 8951, CESifo, Munich, 2021. Under review.

Abstract: How do firms of different sizes react to trade liberalization? Leading theories suggest that, amongst continuing exporters, lower trade costs should boost exports of smaller firms by the same or a greater rate than those of larger firms. However, studying the entry into force of the ambitious EU-South Korea Free Trade Agreement (EUKFTA) with French customs data, we find robust evidence to the contrary. Applying a triple-difference framework, we report that the FTA increased sales in the top quartile of continuous exporters by 71 percentage points more than in the bottom quartile. More than 90 percent of that growth premium is driven by a stronger effective reduction in broadly defined non-tariff barriers (NTBs); the remainder by a higher sensitivity to trade costs. These findings have implications for both heterogeneous firm trade models and for the capacity of FTAs to magnify inequality. In contrast, on the entry margins, our results are in line with the literature with the FTA selecting intermediate-sized firms into exporting to South Korea.