In fuzzy regression discontinuity (FRD) designs, the treatment effect is identified through a discontinuity in the conditional probability of treatment assignment. We show that when identification is weak (i.e. when the discontinuity is of a small magnitude) the usual t-test based on the FRD...

We use comparable micro data sets for the U.S. and Canada to study the responses of young workers to the external labor market forces that have affected the two countries over the past 25 years. We find that young workers adjust to changes in labor market opportunities through a variety of...