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Micro data provides a panel structure that facilitates richer demand specifications and reduces requirements on both the number and types of instrumental variables. We address identification of demand in the standard case in which nonprice product characteristics are assumed exogenous, but also cover identification of demand elasticities and other key features when these product characteristics are endogenous and not instrumented. We discuss implications of these results for applied work.<\/jats:p>","DOI":"10.3982\/ecta20731","type":"journal-article","created":{"date-parts":[[2024,7,25]],"date-time":"2024-07-25T07:56:16Z","timestamp":1721894176000},"page":"1135-1162","source":"Crossref","is-referenced-by-count":19,"title":["Nonparametric Identification of Differentiated Products Demand Using Micro Data"],"prefix":"10.3982","volume":"92","author":[{"given":"Steven T.","family":"Berry","sequence":"first","affiliation":[{"name":"Department of Economics and Cowles Foundation, Yale University"},{"name":"NBER"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philip A.","family":"Haile","sequence":"additional","affiliation":[{"name":"Department of Economics and Cowles Foundation, Yale University"},{"name":"NBER"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2359","published-online":{"date-parts":[[2024]]},"reference":[{"issue":"3","key":"ecta200711-bib-0001","doi-asserted-by":"crossref","first-page":"1007","DOI":"10.1111\/1468-2354.t01-2-00098","volume":"44","author":"Ackerberg","year":"2003","journal-title":"International Economic Review"},{"key":"ecta200711-bib-0002","doi-asserted-by":"crossref","first-page":"2411","DOI":"10.3982\/ECTA13408","volume":"83","author":"Ackerberg","year":"2015","journal-title":"Econometrica"},{"key":"ecta200711-bib-0003","doi-asserted-by":"crossref","first-page":"1021","DOI":"10.3982\/ECTA15867","volume":"87","author":"Allen","year":"2019","journal-title":"Econometrica"},{"key":"ecta200711-bib-0004","doi-asserted-by":"crossref","first-page":"173","DOI":"10.1016\/S0047-2727(00)00079-7","volume":"81","author":"Anderson","year":"2001","journal-title":"Journal of Public Economics"},{"key":"ecta200711-bib-0005","doi-asserted-by":"crossref","unstructured":"Backus, Matthew, Christopher Conlon, and Michael Sinkinson (2021): \u201cCommon Ownership and Competition in the Ready-to-Eat Cereal Industry,\u201d Working Paper, NYU-Stern.","DOI":"10.3386\/w28350"},{"key":"ecta200711-bib-0006","doi-asserted-by":"crossref","first-page":"2015","DOI":"10.3982\/ECTA17448","volume":"89","author":"Barseghyan","year":"2021","journal-title":"Econometrica"},{"issue":"4","key":"ecta200711-bib-0007","doi-asserted-by":"crossref","first-page":"588","DOI":"10.1086\/522381","volume":"115","author":"Bayer","year":"2007","journal-title":"Journal of Political Economy"},{"issue":"1","key":"ecta200711-bib-0008","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.jeem.2008.08.004","volume":"58","author":"Bayer","year":"2009","journal-title":"Journal of Environmental Economics and Management"},{"key":"ecta200711-bib-0009","doi-asserted-by":"crossref","first-page":"1429","DOI":"10.1111\/j.1468-0262.2006.00711.x","volume":"74","author":"Benkard","year":"2006","journal-title":"Econometrica"},{"issue":"2","key":"ecta200711-bib-0010","doi-asserted-by":"crossref","first-page":"242","DOI":"10.2307\/2555829","volume":"23","author":"Berry","year":"1994","journal-title":"RAND Journal of Economics"},{"issue":"4","key":"ecta200711-bib-0011","doi-asserted-by":"crossref","first-page":"889","DOI":"10.2307\/2951571","volume":"60","author":"Berry","year":"1995","journal-title":"Econometrica"},{"issue":"1","key":"ecta200711-bib-0012","doi-asserted-by":"crossref","first-page":"68","DOI":"10.1086\/379939","volume":"112","author":"Berry","year":"2004","journal-title":"Journal of Political Economy"},{"key":"ecta200711-bib-0013","doi-asserted-by":"crossref","unstructured":"Berry, Steven T., and Philip A. 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