"What we are witnessing, in the broadest sense, is the bankruptcy of modern economics. Its conceit has been that we had solved the problem of stability. Oh, there would be periodic recessions, but the prospects of a major economic collapse were negligible because we knew how the system worked and could take steps to prevent it. What's been so unsettling about the present crisis is that it has not conformed to the standard model of business cycles and has not submitted to familiar textbook solutions."
Robert Samuelson's entire article.