Testing the effects of an unobservable factor: Do marriage prospects affect college major choice?
不可观测因素的效应检验:婚姻前景是否影响大学专业选择?
This paper develops an econometric test for whether an unobservable factor jointly influences a choice among multiple alternatives and a subsequent binary outcome. Because only transformed versions of the choice model's unobservables are identified, we combine a copula-based joint model with results on the covariance between ordered and unordered normal variables to recover the covariance between structural shocks, yielding a simulation-based test for a common unobserved…