Spillovers through Multimarket Firms: The Uniform Product Replacement Channel
研究美国区域住房市场冲击如何通过跨市场企业网络溢出，发现企业用低价产品统一替代高价产品，将区域需求冲击传导至其他市场。
Abstract We study how regional housing market disruptions spill over across US local markets through multimarket firm networks. Using granular barcode-level data linked to producer information, we exploit variation in firms’ exposure to local house price declines. A firm’s local sales respond more strongly to indirect housing price declines in its other markets than to direct local declines. The barcode-level data reveal a novel uniform product replacement mechanism: Firms respond to adverse shocks by replacing higher-value products with lower-value alternatives uniformly across all markets. This propagates regional demand shocks through the supply side, with new implications for regional economics.