Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries...

Using data from the Turkish University Entrance Exam, we investigate the extent of the gender gap in college placement, its underlying causes, and potential policy interventions. We estimate preferences using a novel approach which improves our ability to capture substitution patterns and find...

In the literature, frames generated by unitary representations of groups (known as group-frames) are studied only for Hilbert spaces. We make first study of frames for Banach spaces generated by isometric invertible representations of discrete groups on Banach spaces. These frames are...

This paper identifies exit barriers as a new reason for India's underdeveloped manufacturing sector. These barriers not only deter entry but also trap resources in unproductive firms. We document that Indian institutions generate such barriers and provide causal evidence of their effects. Using...

Exams are designed to rank students objectively by their abilities, including elements such as time limits, the number and difficulty of questions, and negative marking policies. Using data from a lab-in-field experiment, we develop and estimate a model of student behavior in multiple-choice...