We extend existing estimators for duration data that suffer from non-random sample selection to allow for time …-varying covariates. Rather than a continuous-time duration model, we propose a discrete-time alternative that models the effects of … compared to those of a naive discrete duration model through Monte Carlo analysis and indicate that our estimator outperforms …

the program. The literature uses linear probability models and (Cox) proportional hazard models to predict duration … outcomes. These either focus on one threshold duration or impose proportionality. In this paper we propose a nonparametric …