It's not useful to control for location without controlling for number of jobs available. What I'm really trying to approximate is "How difficult is it to get a

It's not useful to control for location without controlling for number of jobs available. What I'm really trying to approximate is "How difficult is it to get a job making at least a six-figure salary as a nurse or a software developer?" In SF for example, there are at least twice as many software developer positions as nursing positions. So while the median may be higher for nurses, it's still harder to get a high-paid nursing job than a similarly paid software job. http://www.bls.gov/regions/west/news-release/occupationalemploymentandwages_sanfrancisco.htm http://www.bls.gov/regions/west/news-release/occupationalemp...