This study estimates the average multivalued treatment effects (ATET), of preschool attendance measured in years, on students' international reading, math and science test z-scores in Grade 4. The causal treatment effects come from multiple-years observational data on three levels of preschool...

We investigate whether later educational tracking reduced the intergenerational persistence of socioeconomic disparities in mortality in Finland,where the tracking age was raised from 11 to 16 in the 1970s. We use a difference-in-differences approach that exploits the gradual rollout of the...