Critics charge that Texas’s growth depends on the oil and gas industries and is weighted toward low-wage jobs. But in fact, Texas’s low-tax, light-regulation policies have produced a highly diversified economy that from 2002 to 2011 created nearly one-third of the nation’s highest-paying jobs. In those years, its number of upper- and middle-income jobs grew 24 percent.Where are Americans moving, and why? Timothy Noah, writing in the Washington Monthly, professes to be puzzled. He points out that people have been moving out of states with high per capita incomes -- Connecticut, New York, Massachusetts, Maryland -- to states with lower...