fairly distributed—labour will gain relative to capital, and cost reductions will favour low-income households. Some workers will need to change jobs, but they constitute a small fraction of normal job churn in any given year, and the national benefits argue for generous compensation for their adjustment costs. The agreement will also benefit workers in TPP's poorest member countries." Research by Harvard economist Robert Z. Lawrence finds that the "percentage gains for labor income from the TPP will be slightly greater than the gains to capital income. Households in all quintiles will benefit by similar percentages, but once differences in spending shares are taken into account, the percentage gains to poor and middle-class households will be slightly larger than the gains to households at the top." An opinion piece by Ed Gerwin in The Wall Street Journal argues that the TPP agreement benefits small businesses in the US. Economists David Autor, David Dorn and Gordon H. Hanson, who have extensively studied US labor markets adjustments to trade competition shocks caused by China, support TPP. They argue that TPP "would promote trade in knowledge-intensive services in which U.S. companies exert a strong comparative advantage", note that "killing the TPP would do little to bring factory work back to America" and argue that it would pressure China to raise regulatory rules and standards to those of TPP members. According to the U.S. International Trade Commission, the TPP will have positive effects on the U.S. economy as a whole, with unskilled labor reaping 25% of the gains, skilled workers 41% and business owners 34%. Macroeconomics World Bank report World Bank found that if ratified by signatories, the TPP "agreement could raise GDP in member countries by an average of 1.1 percent by 2030. It could also increase member countries' trade by 11 percent by 2030, and represent a boost to regional trade growth, which had slowed to about 5 percent, on average, during 2010-14 from about 10 percent during 1990-07." The World Bank finds that the agreement will raise real wages in all signatories: "In the United States, for example, changes in real wages are expected to be small as unskilled and skilled wages increase by 0.4 and 0.6 percent, respectively, by 2030. In contrast, in Vietnam, TPP could increase the real wages of unskilled workers by more than 14 percent by 2030, as production intensive in unskilled labor (e.g. textiles) shifts to Vietnam."