Unfortunately the non-Woods portions of this video are in Portuguese, but I am gently correcting Keynesian economist Stephen Kanitz, who thought (1) the mortgage interest deduction was the primary cause of the housing bubble in the U.S., and (2) that the existence of managers directing production within a firm contradicted Adam Smith’s concept of the invisible hand. This is from a conference in Brazil in April 2010; there were a couple thousand people in the audience at the time. I start around 1:20.