==Reference Papers==
Jeremy's paper with David Hsu and Chenyu Yang is here:*[http://fox.web.rice.edu/working-papers/fox-hsu-yang-matching.pdfUnobserved Heterogeneity in Matching Games with an Application to Venture Capital].Abstract: Agents in two-sided matching games vary in characteristics that are unobservable in typical dataon matching markets. We investigate the identification of the distribution of unobserved characteristicsusing data on who matches with whom. In full generality, we consider many-to-manymatching and matching with trades. The distribution of match-specific unobservables cannot befully recovered without information on unmatched agents, but the distribution of a combinationof unobservables, which we call unobserved complementarities, can be identified. Using data onunmatched agents restores identification. We estimate the contribution of observables and unobservablecomplementarities to match production in venture capital investments in biotechnologyand medical firms.
[[Fox Hsu Yang (2015) - Unobserverd Heterogeneity in Matching Games with an Application to Venture Capital]] provides some notes.