... and shifts in the composition of self-employed drivers using descriptive statistics and transition analysis. Subsequently, it leverages the staggered rollout of Uber and 99 across cities using a difference-in-differences framework to estimate the causal effects of platform entry on labor market outcomes...

... of the public educational policy introducing full-time schools (FTS) for high schools in the state of Ceará, Brazil, on early pregnancy rates. Design/methodology/approach Using the difference-in-differences method with multiple time periods, we measured the average effect of this staggered treatment...