The very large increase in world trade (globalization) over the last four decades has enormously reduced poverty and raised living standards for very large numbers of people. Government policies in the U.S., China and elsewhere have produced large, unsustainable trade imbalances (mismatch of imports and exports). Free trade on its own would not produces such imbalances. New Global Studies has just published my article “Time for a New Global Currency?” http://www.bepress.com/ngs/vol3/iss1/art5. The article explains what the IMF’s Special Drawing Rights (SDRs) are following the G 20s recommendation that the IMF allocate an additional 250 billion dollars worth of them, and how they might facilitate achieving and maintaining better global balance.