In 2011-12, Newark launched a set of educational reforms supported by a gift from Facebook CEO Mark Zuckerberg and Priscilla Chan. Using data from 2009 through 2016, we evaluate the change in Newark students' achievement growth relative to similar students and schools elsewhere in New Jersey. We...

In a widely cited study, Chetty, Friedman, and Rockoff (2014a; hereafter CFR) evaluate the degree of bias in teacher value-added estimates using a novel "teacher switching" research design with data from New York City. They conclude that there is little to no bias in their estimates. Using the same...

Forecasting currencies with commodity prices -- Commodity prices, commodity currencies, and global economic developments / Jan J. J. Groen and Paolo A. Pesenti -- Comments: Kalok Chan, Roberto S. Mariano -- The relationship between commodity prices and currency exchange rates: evidence from the...

This paper specifies a general set of conditions under which the impacts of a policy can be identified using data generated under a different policy regime. We show that some of the policy impacts can be identified under relatively weak conditions on the data and structure of a model. Based on...