I am an Associate Professor of Information Science in the School of Computing and Information Science at Cornell University. I received my B.Tech from IIT Bombay in 2001, and my PhD from Stanford in 2006. Prior to joining Cornell, I spent 6 years (2006-2012) in the Microeconomics and Social Sciences group at Yahoo! Research. My research centers around economic behavior on the Internet. I am currently most interested in the economics of online user contribution---whether explicit contribution, as