Joseph Stiglitz talks about Occupy Wall Street. Joseph E. Stiglitz is a graduate of Amherst College, he received his PHD from MIT and became a full professor at Yale in 1970.  He has taught at Princeton, Stanford, MIT and was the Drummond Professor and a fellow of All Souls College, Oxford. He is now University Professor at Columbia University in New York and Co-Chair of Columbia University's Committee on Global Thought. He was awarded the Nobel Prize in economics for his analyses of markets with asymmetric information.