Proposes a semiparametric estimator that identifies selection bias in demand equations as a convolution of latent propensity scores derived from cross-product entry correlations, applied to airline data showing higher price elasticities than conventional corrections.
The common structure of statistical models of truncation, sample se- lection and limited dependent variables and a simple estimator for such models
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Identification and Estimation of Demand Models with Endogenous Product Entry and Exit
Proposes a semiparametric estimator that identifies selection bias in demand equations as a convolution of latent propensity scores derived from cross-product entry correlations, applied to airline data showing higher price elasticities than conventional corrections.