{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T20:16:05Z","timestamp":1790626565873,"version":"4.1.0"},"reference-count":66,"publisher":"The Econometric Society","issue":"2","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["QE"],"abstract":"<jats:p>Demand estimates are essential for addressing a wide range of positive and normative questions in economics that are known to depend on the shape\u2014and notably the curvature\u2014of the true demand functions. The existing frontier approaches, while allowing flexible substitution patterns, typically require the researcher to commit to a parametric specification. An open question is whether these a priori restrictions are likely to significantly affect the results. To address this, I develop a nonparametric approach to estimation of demand for differentiated products, which I then apply to California supermarket data. While the approach subsumes workhorse models such as mixed logit, it allows consumer behaviors and preferences beyond standard discrete choice, including continuous choices, complementarities across goods, and consumer inattention. When considering a tax on one good, the nonparametric approach predicts a much lower pass\u2010through than a standard mixed logit model. However, when assessing the market power of a multiproduct firm relative to that of a single\u2010product firm, the models give similar results. I also illustrate how the nonparametric approach may be used to guide the choice among parametric specifications.<\/jats:p>","DOI":"10.3982\/qe1653","type":"journal-article","created":{"date-parts":[[2022,5,2]],"date-time":"2022-05-02T13:01:03Z","timestamp":1651496463000},"page":"545-591","source":"Crossref","is-referenced-by-count":41,"title":["Market counterfactuals and the specification of multiproduct demand: A nonparametric approach"],"prefix":"10.3982","volume":"13","author":[{"given":"Giovanni","family":"Compiani","sequence":"first","affiliation":[{"name":"Booth School of Business, University of Chicago"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2359","published-online":{"date-parts":[[2022]]},"reference":[{"key":"quan200207-bib-0001","doi-asserted-by":"crossref","unstructured":"Abaluck, Jason and Abi Adams (2017). \u201cWhat do consumers consider before they choose? 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