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Multi-to one-dimensional screening and semi-discrete optimal transport

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  • Omar Abdul Halim
  • Brendan Pass

Abstract

We study the monopolist's screening problem with a multi-dimensional distribution of consumers and a one-dimensional space of goods. We establish general conditions under which solutions satisfy a structural condition known as nestedness, which greatly simplifies their analysis and characterization. Under these assumptions, we go on to develop a general method to solve the problem, either in closed form or with relatively simple numerical computations, and illustrate it with examples. These results are established both when the monopolist has access to only a discrete subset of the one-dimensional space of products, as well as when the entire continuum is available. In the former case, we also establish a uniqueness result.

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  • Omar Abdul Halim & Brendan Pass, 2025. "Multi-to one-dimensional screening and semi-discrete optimal transport," Papers 2506.21740, arXiv.org.
    • Handle: RePEc:arx:papers:2506.21740
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