Srinivas Thiruvadanthai is the Director of Research at the Jerome Levy Forecasting Center, and one of the most interesting commentators on markets and the economy. He's also an economist who fits into the post-Keynesian school of thought. The post-Keynesians -- a group that has a growing following -- argue that the economy is not self-correcting, that central banks have limited influence on the economy or inflation, and that large government debts can be a stabilizing force. In our conversation, he explains his world view and how he uses it to interpret markets right now.