In this paper, we explore partial identification and inference for the quantile of treatment effects for randomized experiments. First, we propose nonparametric estimators of sharp bounds on the quantile of treatment effects and establish their asymptotic properties under general conditions....

The empirical evidence of the effect of intergenerational coresidence by elderly parents and their adult children on parental health remains inconclusive. This study provides a new estimate of the coresidence effect by addressing non-random selection and heterogeneity in the treatment effect....