It's not that simple. High salaries aren't the only benefit that comes from high concentration, there's also high fluidity in the job market. And it goes both w

It's not that simple. High salaries aren't the only benefit that comes from high concentration, there's also high fluidity in the job market. And it goes both ways. In our industry, employers are picky (what's the on-site to offer conversion rate at your company?), and potential employees are picky (rightly so, in my opinion) given the huge variance in job satisfaction.