gains of imposing a (valid) exclusion restriction are quite small, particularly with respect to the estimation of marginal …

Estimation procedures for ordered categories usually assume that the estimated coefficients of independent variables do … Williams (gologit2) with the random effects estimation command regoprob by Stefan Boes. …

This paper examines the effect of systematic self-report bias, the non-random deviation between the self-reported and … true values of the same measure. This bias may be constant or variable, and can mislead empirical analyses based on … descriptive statistics, program evaluation and instrumental variables estimation. I illustrate these issues with data on self …

) bias in β^. We add to this literature in two important ways. First, we focus on estimation of the fixed effects proper, as … these have become increasingly important in applied work. Second, we build on a bias-reduction approach originally developed …