NerdWallet research analyst Shreekar Jasthi and his team crunched the numbers to find the cities that have improved the most since the Great Recession officially ended. They considered the following factors in our analysis of 510 of the largest U.S. cities: 1. Labor market: To assess improvement in a city’s labor market, NerdWallet measured the percentage change in unemployment in the civilian labor force from 2009 to 2012. We also calculated the change in median household income. 2. Housing market: NerdWallet calculated the change in median home value from 2009-2012.