location of the treated units. We also apply all five methods to bandwidth selection in the context of the data from LaLonde …'s (1986) study of the performance of non-experimental estimators using the experimental data from the National Supported Work …

This paper focuses on an extension of zero-inflated generalized Poisson (ZIGP) regression models for count data. We …. Consequently, we propose tools for an exploratory data analysis on the dispersion and zero-inflation level. An application dealing … errors are estimated using the asymptotic normality of the estimates. Appropriate exploratory data analysis tools are …