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We find that a $10 decrease in monthly premium subsidies would cause a decline of between 1.8% and 6.7% in the proportion of subsidized adults with coverage. The reduction in total annual consumer surplus would be between $62 and $74 million, while the savings in yearly subsidy outlays would be between $207 and $602 million. We estimate the demand impacts of linking subsidies to age, finding that shifting subsidies from older to younger buyers would increase average consumer surplus, with potentially large impacts on enrollment. We also estimate the consumer surplus impact of removing the highly\u2010subsidized plans in the Silver metal tier, where we find that a nonparametric model is consistent with a wide range of possibilities. We find that comparable mixed logit models tend to yield price sensitivity estimates toward the lower end of the nonparametric bounds, while producing consumer surplus impacts that can be both higher and lower than the nonparametric bounds depending on the specification of random coefficients.<\/jats:p>","DOI":"10.3982\/ecta17215","type":"journal-article","created":{"date-parts":[[2023,1,24]],"date-time":"2023-01-24T09:27:41Z","timestamp":1674552461000},"page":"107-146","source":"Crossref","is-referenced-by-count":27,"title":["Nonparametric Estimates of Demand in the California Health Insurance Exchange"],"prefix":"10.3982","volume":"91","author":[{"given":"Pietro","family":"Tebaldi","sequence":"first","affiliation":[{"name":"Department of Economics, Columbia University"},{"name":"NBER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Torgovitsky","sequence":"additional","affiliation":[{"name":"Kenneth C. 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