We introduce two new Stata commands for the estimation of an ordered response model with sample selection. The opsel command uses a standard maximum likelihood (ML) approach to fit a parametric specification of the model where errors are assumed to follow a bivariate Gaussian distribution. The...

This article evaluates the impact of the company's employment level on the town's labor earnings in Kazakhstan, where one-company towns are still prevalent. The evaluation is based on data from the 1996 Living Standards Measurement Survey. The results and the theoretical model are combined to...