We use rich microeconomic data on performance and choices of students at college entry to study the interaction between the revelation of college preferences through exams and the selection of allocation mechanisms. We propose a method in which preferences and expectations of students are...

We evaluate a simple allocation mechanism of students to majors at college entry that was commonly used in universities in Brazil in the 1990s and 2000s. Students first chose a single major and then took exams that select them in or out of the chosen major. The literature analyzing student...

Brazilian health authorities have recommended that pregnant women take meticulous precaution to avoid mosquito bites, and use contraceptive methods to postpone/delay pregnancies. In this article, we present new estimates on the Zika virus prevalence, its correlates and preventive behaviors in...