One is not enough. Understanding world trade collapse. Luncheon presentation at the Peterson Institute, Monday November, 29, 2010
The world trade collapse that started in October 2008 and reduced global trade by some twenty per cent in only a few months time remains one of the most puzzling phenomena of the last decade. In mid-2009 a consensus amonst trade economists appeared to have emerged. The concensus can be summarized in two ways. Many economists argue that the trade collapse was a demand shock multiplied by a composition effect (the 2009 edited volume by Richard Baldwin is an example). The other view in the profession (of which the WTO in 2009 is an example) is that the trade collapse was caused by protectionism, lacking trade finance and the fragmentation of production in international value chains (the latter incidentally is seen to be a driver of composition effects). My problem with both representations of the consensus is that they are based on empirical analyses of post Second World War data only. Economists typically do not include the Black Swan of the 1930s in their analysis. This would seem to ...