That's a hard answer to accept, especially for those American policy intellectuals who recoil from the dreary task of reducing deficits and raising t… - Paul Krugman

Piketty ends Capital in the Twenty-First Century with a call to arms — a call, in particular, for wealth taxes, global if possible, to restrain the growing power of inherited wealth. It’s easy to be cynical about the prospects for anything of the kind. But surely Piketty’s masterly diagnosis of where we are and where we’re heading makes such a thing considerably more likely. So Capital in the Twenty-First Century is an extremely important book on all fronts. Piketty has transformed our economic discourse; we’ll never talk about wealth and inequality the same way we used to.

But this warning was ignored, and there was no move to extend regulation. On the contrary, the spirit of the times—and the ideology of the George W. Bush administration—was deeply antiregulation. This attitude was symbolized by a photo-op held in 2003, in which representatives of the various agencies that play roles in bank oversight used pruning shears and a chainsaw to cut up stacks of regulations. More concretely, the Bush administration used federal power, including obscure powers of the Office of the Comptroller of the Currency, to block state-level efforts to impose some oversight on subprime lending.

By 1980, the work of Feldstein, Boskin, Summers, and others had convinced many economists that U.S. taxes were in fact a significant obstacle to investment. Nor was this all: another major U.S. policy, the Social Security system, was also discouraging saving and investment.