Overall, DallasâFort Worth and Houston have emerged as the nationâs fastest-expanding big-city economies. Between 2000 and 2015, DallasâFort Worth boosted its net job numbers by 22.7 percent, and Houston expanded them by an even better 31.2 percent. Smaller Austin (38.2 percent job-base increase) and once-sleepy San Antonio (31.4 percent) have done just as well. New York, by way of comparison, increased its number of jobs in those years by just 10 percent, Los Angeles by 6.5 percent, and San Francisco by 5.2 percent, while Chicago actually lost net employment. And the Texas jobs are not just low-wage employment. Middle-class positionsâthose paying between 80 percent and 200 percent of the national median wageâhave expanded 39 percent in Austin, 26 percent in Houston, and 21 percent in Dallas since 2001. These percentages far outpace the rate of middle-class job creation in San Francisco (6 percent), New York and Los Angeles (little progress), and Chicago (down 3 percent) over the same period.