Over the past decade, a small group of economists has challenged traditional wisdom about international trade. "Rethinking International Trade provides a coherent account of this research program and traces the key steps in an exciting new trade theory that offers, among other possibilities, new arguments against free trade. Krugman's introduction is a valuable guide to research that has delved anew into the causes of international trade and reopened basic questions about the international pattern of specialization, the effects of protectionism, and what constitutes an optimal trade policy In the four sections that follow, he takes a revisionary look at the causes of international trade, and discusses growth and the role of history, technological change and trade, and strategic trade policy. Essays in part I review and challenge the theories of Ricardo and his successors, rethinking a 160-year tradition of looking at international trade. Models are presented in which trade frequently arises because of opportunities to exploit increasing returns through exports rather than from comparative advantage. In part II, Krugman traces the resulting pattern of trade specialization not only to the influence of comparative advantage but also to more arbitrary factors such as historical events, the rachet effect of cumulative processes, technological changes, and temporary economic shocks. Part III expands on the theme of technological change as a key factor in determining the pattern of specialization in international trade and addresses questions about the effects of innovation, or lack of it, on a country's international trade position. The concluding essays examine the issue of protectionismalong with other elements of trade policy, showing how protectionist policies, used as an export enhancement device by some national governments, may shift world specialization to the advantage of the protectionist nations. Paul R. Krugman is Professor of Economics at MIT.

The Self-Organizing Economy In the last few years the concept of self-organizing systems—complex systems in which randomness and chaos seem spontaneously to evolve into unexpected order—has linked together researchers in many fields, from artificial intelligence to chemistry, from evolution to geology. Now leading economist Paul Krugman shows how principles that explain the growth of hurricanes and embryos can also explain the formation of cities and business cycles; how the same principles of “order from random growth” can explain the strangely simple rules that describe the sizes of earthquakes, meteorites, and metropolitan areas. Weaving together strands from many disciplines, from location theory to biology, The Self-Organizing Economy offers a surprising new view of how the economy structures itself in space and time.

This book addresses the fear amongst economists that major changes in both the supply and demand for investment funds around the world have caused a severe shortage of savings. The large capital-exporting countries - Japan and Germany - are experiencing a sharp decline in external surpluses.