Marchenko, Yulia V.; Genton, Marc G. - In: Journal of the American Statistical Association 107 (2012) 497, pp. 304-317
Sample selection arises often in practice as a result of the partial observability of the outcome of interest in a study. In the presence of sample selection, the observed data do not represent a random sample from the population, even after controlling for explanatory variables. That is, data...