Cascades and Fluctuations in an Economy with an Endogenous Production Network

• 成果类型: Article; Early Access
• 署名作者: Taschereau-Dumouchel, Mathieu
• 署名单位: Cornell University
• 刊物名称: REVIEW OF ECONOMIC STUDIES
• ISSN/ISSBN: 0034-6527
• DOI: 10.1093/restud/rdaf036
• 发表日期: 2025
• 关键词: origins; performance; shocks; IMPACT; LINKS

摘要

This article studies the efficient allocation in an economy in which firms are connected through input-output linkages and must pay a fixed cost to produce. When economic conditions are poor, some firms might decide not to operate, thereby severing the links with their neighbours and changing the structure of the production network. Since producers benefit from having access to additional suppliers, nearby firms tend to operate, or not, together. As a result, the production network features clusters of operating firms, and the exit of a producer can create a cascade of firm shutdowns. While well-connected firms are better able to withstand shocks, they trigger larger cascades upon exit. The theory also predicts how the structure of the production network changes over the business cycle. As in the data, recessions are associated with more dispersed networks that feature fewer highly connected firms. In the calibrated economy, the endogenous reorganization of the network substantially dampens the impact of idiosyncratic shocks on aggregate fluctuations.