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Based on a survey that we designed and that covers a stratified random sample of 12,400 firms in 120 cities in China with firm-level accounting information for 2002-2004, this paper examines the presence of systematic distortions in capital allocation that result in uneven marginal returns to capital across firm ownership, regions, and sectors. It provides a systematic comparison of investment efficiency among wholly and partially state-owned, wholly and partially foreign-owned, and domestic privately owned firms, conditioning on their sector, location, and size characteristics. It finds that even after a quarter-of-century of reforms, state-owned firms still have significantly lower returns to capital, on average, than domestic private or foreign-owned firms. Similarly, certain regions and sectors have consistently lower returns to capital than other regions and sectors. By our calculation, if China succeeds in allocating its capital more efficiently, it could reduce its capital stock by 8 percent without sacrificing its economic growth (and hence could raise its household consumption and deliver a faster improvement to its citizens' living standard).

One of the most contentious issues of globalization is the effect of global economic integration on inequality and poverty. This article documents five trends in the modern era of globalization, starting around 1980. The first trend is that growth rates in poor economies have accelerated and are higher than growth rates in rich countries for the first time in modern history. Developing countries per capita incomes grew more than 3.5 percent a year in the 1990s. Second, the number of extremely poor people in the world has declined significantly. The share of people in developing economies living on less than dollar 1 a day has been cut in half since 1981, though the decline in the share living on less than dollar 2 per day was much less dramatic. Third, global inequality has declined modestly, reversing a 200-year trend toward higher inequality. Fourth, within-country inequality in general is not growing, though it has risen in several populous countries (China, India, and the United States). Fifth, wage inequality is rising worldwide. This may seem to contradict the fourth trend, but it does not because there is no simple link between wage inequality and household income inequality. Furthermore, the trends toward faster growth and poverty reduction are strongest in developing economies that have integrated with the global economy most rapidly, which supports the view that integration has been a positive force for improving the lives of people in developing areas

Discusses how foreign aid used to create reforms in social structures such as national and local institutions, policies, and infrastructure improves economic performance and poverty reduction.