Events

Dr. Alexey Makarin
Assistant Professor in Economics
MIT Sloan School of Management

How do severe shocks such as war alter the economy? We study how a country’s production network is affected by a devastating but localized conflict. Using unique transaction-level data on Ukrainian railway shipments around the start of the 2014 Russia-Ukraine crisis, we uncover several novel indirect effects of conflict on firms. First, we document substantial propagation effects on interfirm trade — trade declines even between partners outside the conflict areas if one of them had traded with those areas before the conflict events. The magnitude of such second-degree effect of conflict is one-fifth of the first-degree effect. Ignoring this propagation would lead to an underestimate of the total impact of conflict on trade by about 67%. Second, war induces sudden changes in the production-network structure that influence firm performance. Specifically, we find that firms that exogenously became more central — after the conflict practically cut off certain regions from the rest of Ukraine — received a relative boost to their revenues. Finally, in a production-network model, we separately estimate the effects of the exogenous firm removal and the subsequent endogenous network adjustment on firm revenue distribution. For a median firm, network adjustment compensates for 80% of the network destruction a year after the conflict onset. 

This is a joint seminar organized by HKU, CUHK, City U, HKUST and Lingnan U.

Please contact Xiameng PAN at xmpan@connect.hku.hk for registration.