"A higher share of college graduates also yielded higher wages for workers without college degrees, likely because employers have to pay them more to keep them

"A higher share of college graduates also yielded higher wages for workers without college degrees, likely because employers have to pay them more to keep them in higher-cost cities:" I'm wondering if the increase in average wage of non-college degree holders outweighed the higher cost of living in the cities with high concentrations of college degree holders. If so, not so bad, all boats lifted higher by the tide &c. I suspect that the rise does not outweigh the increased cost of living, especially rents/housing costs. The result is a long commute added onto the day for the people who do not hold college degrees and who work in the chi-chi economy. That process has limits. Perhaps it needs a generation or two to reach steady-state?