Spillovers through Multimarket Firms: The Uniform Product Replacement Channel

57 Pages Posted: 13 Nov 2019 Last revised: 29 Nov 2023

See all articles by Jay Hyun

Jay Hyun

HEC Montréal

Ryan Kim

Johns Hopkins University

Date Written: November 8, 2019


We study how regional housing market disruptions spill over across US local markets through intrafirm spatial networks created by multimarket firms. We identify spillovers by linking granular data on product-county-level prices and quantities with producer-level information and exploiting variation in firms' exposure to differential declines in local house prices. A firm's local sales decrease following a local housing price decrease but do so more strongly to indirect exposure to the housing price decrease originating in its other markets. Our barcode-level data and multiregion model with endogenous product quality adjustment reveal a novel uniform product replacement mechanism behind the spillover: Firms replace higher-value products with lower-value products in response to the housing market disruptions, and such product replacements are synchronized across markets within each firm, including the markets with stable housing prices.

Keywords: Network, Spillover, Product Replacement, Great Recession, Housing Crisis

JEL Classification: E20, E32, F44, L11, L22, R32

Suggested Citation

Hyun, Jay and Kim, Ryan, Spillovers through Multimarket Firms: The Uniform Product Replacement Channel (November 8, 2019). Available at SSRN: https://ssrn.com/abstract=3480961 or http://dx.doi.org/10.2139/ssrn.3480961

Jay Hyun (Contact Author)

HEC Montréal ( email )

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HOME PAGE: http://https://sites.google.com/site/jungsikhyunecon

Ryan Kim

Johns Hopkins University ( email )

1740 Massachusetts Avenue, NW
Washington, DC 20036-1984
United States

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