Paul Krugman

In 2008, Krugman was awarded the Nobel Memorial Prize in Economic Sciences for his contributions to New Trade Theory and New Economic Geography. The Prize Committee cited Krugman's work explaining the patterns of international trade and the geographic distribution of economic activity, by examining the effects of economies of scale and of consumer preferences for diverse goods and services. Krugman was previously a professor of economics at MIT, and later at Princeton University. He retired from Princeton in June 2015, and holds the title of professor emeritus there. 

He also holds the title of Centenary Professor at the London School of Economics. Krugman was President of the Eastern Economic Association in 2010,[8] and is among the most influential economists in the world. He is known in academia for his work on international economics (including trade theory and international finance), economic geography, liquidity traps, and currency crises.