If you're not limited by bulk unskilled labor you're limited by talented, skilled labor. A bunch of skilled labor is coming from elite families that have had e

If you're not limited by bulk unskilled labor you're limited by talented, skilled labor. A bunch of skilled labor is coming from elite families that have had expensive educations and white-collar jobs for generations, but a not inconsiderable portion is coming from skilled immigrants and the second- or third-generation upwardly mobile children of unskilled immigrants.