Large swaths of economics are going to have to be rethought on the basis of what's happened." So said Larry Summers, President Obama's chief economic adviser, in an interview in the weeks after the markets crashed a year ago. Yet to a remarkable degree, economic thinking hasn't changed very much at all. (Click here to follow Michael Hirsh). Now financier George Soros is announcing a $50 million effort to speed things along. This week Soros is gathering some of the leading practitioners of the market-skeptic school, who were marginalized during the era of "free-market fundamentalism," among them Nobelists Joseph Stiglitz,...