What Ever Happened To Upward Mobility?

America's story, our national mythology, is built on the idea of being an opportunity society. From the tales of Horatio Alger to the real lives of Henry Ford and Mark Zuckerberg, we have defined our country as a place where everyone, if he or she works hard enough, can get ahead. As Alexis de Tocqueville argued more than 150 years ago, it's this dream that enables Americans to tolerate much social inequality--this coming from a French aristocrat--in exchange for what we perceive as great dynamism and opportunity in our society. Modern surveys confirm what Tocqueville sensed back then: Americans care much...