"It is so widely recognized that innovation is a key driver of economic growth that it is cliche to say so. This article studies product innovation by firms with data from 68 countries, covering more than 25,000 firms in eight manufacturing sectors. The author assesses the predictions of...

"Over the past decade the United States has experienced widening current account deficits and a steady deterioration of its net foreign asset position. During the second half of the 1990s, this deterioration was fueled by foreign investment in a booming U.S. stock market. During the first half...

"The United States imports around 25 percent of its merchandise under some form of preferential trade regime. The authors examine both the origins and consequences of U.S. trade preferences in the context of the gravity model of international trade. First, they provide estimates of the impact of...

"The authors analyze recent efforts at international cooperation to limit illegal migration, particularly through the use of legal migration avenues like guest worker schemes. They show that while guest worker schemes may be desirable as an avenue of international migration, they are an...

"The authors examine the empirical evidence in support of the poverty trap view of underdevelopment. They calibrate simple aggregate growth models in which poverty traps can arise due to either low saving or low technology at low levels of development. They then use these models to assess the...