CONVERSABLE ECONOMIST: Evidence on the Samuelson Conjecture: "For a useful starting point to thinking about how the rise of emerging economies like China affect global trade, I recommend a symposium in the Spring 2012 issue of JEP. Gordon H. Hanson starts with "The Rise of Middle Kingdoms: Emerging Economies in Global Trade." "Gains from Trade when Firms Matter," by Marc J. Melitz and Daniel Trefler, looks at the benefits of trade offers introduction to modern models of trade driven from variety, shifts toward more efficient firms, and technological gains. For an introduction to models of international trade based on by differences in relative productivity across countries--like the model used by di Giovanni, Levchenko, and Zhang--that same has a useful article called "Putting Ricardo to Work," by Jonathan Eaton and Samuel Kortum. Finally, Jonathan Haskel, Robert Z. Lawrence, Edward E. Leamer, and Matthew J. Slaughter look at "Globalization and U.S. Wages: Modifying Classic Theory to Explain Recent Facts." "
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