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Journal of Political Economy Vol. 130 No. 2 2022

Intermediation and Competition in Search Markets: An Empirical Case Study

Tobias Salz

Massachusetts Institute of Technology

Abstract

Intermediaries in decentralized markets can affect buyer welfare both directly, by reducing expenses for buyers with high search cost, and indirectly, through a search externality that affects the prices paid by buyers who do not use intermediaries. I investigate the magnitude of these effects in New York City’s trade-waste market, where buyers can search either by themselves or through a waste broker. Combining elements from the empirical search and procurement auction literatures, I construct and estimate a model for a decentralized market. Results from the model show that intermediaries improve welfare and benefit buyers in both the broker and the search markets.

DOI
10.1086/717349
Volume
130
Issue
2
Pages
310-345
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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