The BrookingsInstitute calls the area's workforce the most productive in America.
布鲁金斯研究所（Brookings Institute）称该地区工作人口的生产效率在美国居于首位。
2
BrookingsInstitute demographer William Frey notes that the current economic downturn may have actually given these median income levels a boost.
布鲁斯金学会人口统计学家威廉，弗利表示，当前的经济不景气可能真的已经给这些收入中值水平一个提升。
3
Between 2007 and 2010, the total number of poverty-level suburban dwellers rose by 3.4 million, according to an analysis of U.S. Census data by the BrookingsInstitute.