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A Unified Representation Framework for Rideshare Marketplace Equilibrium and Efficiency

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  • Alex Chin
  • Zhiwei Qin

Abstract

Ridesharing platforms are a type of two-sided marketplace where ``supply-demand balance'' is critical for market efficiency and yet is complex to define and analyze. We present a unified analytical framework based on the graph-based equilibrium metric (GEM) for quantifying the supply-demand spatiotemporal state and efficiency of a ridesharing marketplace. GEM was developed as a generalized Wasserstein distance between the supply and demand distributions in a ridesharing market and has been used as an evaluation metric for algorithms expected to improve supply-demand alignment. Building upon GEM, we develop SD-GEM, a dual-perspective (supply- and demand-side) representation of rideshare market equilibrium. We show that there are often disparities between the two views and examine how this dual-view leads to the notion of market efficiency, in which we propose novel statistical tests for capturing improvement and explaining the underlying driving factors.

Suggested Citation

  • Alex Chin & Zhiwei Qin, 2023. "A Unified Representation Framework for Rideshare Marketplace Equilibrium and Efficiency," Papers 2302.14358, arXiv.org.
    • Handle: RePEc:arx:papers:2302.14358
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    References listed on IDEAS

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