Finding effects of a binary treatment D on a right-censored duration Y with covariates X is an important issue in survival/failure duration analysis. This paper shows that the ratio, not the difference, of the survival probabilities of the treatment and control groups solves the random censoring...

We show that the main nonparametric identification finding of Abbring and Van den Berg (2003b, Econometrica) for the effect of a timing-chosen treatment on an event duration of interest does not hold. The main problem is that the identification is based on the competing-risks identification...

The main attraction of Regression Discontinuity (RD) is local randomization around the cutoff. However, often the running variable (or just ''score'') is manipulated to ruin the local randomization. To detect manipulation, typically, the continuity at the cutoff of the score density function is...