Sergio Arango is a Tobin Center / Economics Pre-Doctoral Fellow working with Professors Christopher Neilson, John Eric Humphries, and Seth Zimmerman. He holds a M.Sc. in Economics and a B.A. in Economics from the Pontificia Universidad Javeriana in Bogota, Colombia. Prior to joining Yale, Sergio was a Research Associate at the Colombian Institute for the Assessment of Education (ICFES for its acronym in spanish) to provide evidence that informs education policy.