Contributor(s): Professor Paul Krugman | The global economic crisis has shaken a lot of what we thought we knew about economics. Over three consecutive evenings, Professor Krugman will cover the causes of the crisis; the deeply vexed question of how and when the world economy can recover; and the implications of the whole mess for economics and economists. Paul Krugman is centenary professor at LSE and professor of economics and international affairs at Woodrow Wilson School, Princeton University. In 2008 he was awarded the Nobel Prize in Economic Sciences.