A new era of globalization, which began in the 1980s, brought about a significant decline in costs of transportation, communication, and production; considerably improved intercountry competitiveness; and broke down trade and cultural barriers among countries. The concept of a sovereign nation has been increasingly questioned in recent years. Some, indeed, have imagined a world without boundaries, without countries. Others who doubt the benefits of globalization have called for increased protectionism and greater regulation of economic activity. Has globalization made the world grow faster?...

Experts have long questioned the effect of currency undervaluation on overall GDP growth. They have viewed the underlying basis for this policy--intervention in currency markets to keep the price of the home currency cheap--as doomed to failure on both theoretical and empirical grounds. Moreover, the view has been that overvalued currencies hurt economic growth but undervalued currencies cannot help in growth acceleration. A parallel belief has been that the real exchange rate--that is, a country's competitive ranking--cannot be affected by merely changing the nominal exchange rate. This view...