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Spatial Distribution of Supply and the Role of Market Thickness: Theory and Evidence from Ride Sharing

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  • Soheil Ghili
  • Vineet Kumar

Abstract

This paper studies the effects of economies of density in transportation markets, focusing on ridesharing. Our theoretical model predicts that (i) economies of density skew the supply of drivers away from less dense regions, (ii) the skew will be more pronounced for smaller platforms, and (iii) rideshare platforms do not find this skew efficient and thus use prices and wages to mitigate (but not eliminate) it. We then develop a general empirical strategy with simple implementation and limited data requirements to test for spatial skew of supply from demand. Applying our method to ride-level, multi-platform data from New York City (NYC), we indeed find evidence for a skew of supply toward busier areas, especially for smaller platforms. We discuss the implications of our analysis for business strategy (e.g., spatial pricing) and public policy (e.g., consequences of breaking up or downsizing a rideshare platform)

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  • Soheil Ghili & Vineet Kumar, 2021. "Spatial Distribution of Supply and the Role of Market Thickness: Theory and Evidence from Ride Sharing," Papers 2108.05954, arXiv.org.
    • Handle: RePEc:arx:papers:2108.05954
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    References listed on IDEAS

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    Cited by:

    1. Alex Chin & Zhiwei Qin, 2023. "A Unified Representation Framework for Rideshare Marketplace Equilibrium and Efficiency," Papers 2302.14358, arXiv.org.

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