The Delhi Metro (DM) is a mass rapid transit system serving the National Capital Region of India. It is also the world's first rail project to earn carbon credits under the Clean Development Mechanism of the United Nations for reductions in CO2 emissions. Did the DM also lead to localized...

I examine whether after the terrorist attacks of September 11, 2001 Muslim immigrants and immigrants who fit the Muslim Arab stereotype in Australia perceive a greater increase in religious and racial intolerance and discrimination compared to other immigrant groups. I also examine whether there...

The most widely used textbooks today conflate three distinct population parameters: the population regression function (PRF), the conditional expectation function (CEF), and the causal effect. They also incorrectly suggest, and sometimes state, that the Conditional Mean Zero assumption implies...