We study macroeconomic systems with forward-looking private sector agents and a monetary authority that is trying to control the economy through the use of a linear policy feedback rule. A typical finding in the burgeoning literature in this area is that policymakers should be relatively...

"Death of a Theory," presented in St. Louis. January 13, 2012.

"SNEAK PREVIEW: Death of a Theory." Presented at the Korea-America Economic Association, Chicago, Illinois. January 7, 2012.

We study an economy in which intermediaries have incentives to issue circulating liabilities as part of an equilibrium. We show that, with arbitrarily small transactions costs, only the liabilities of intermediaries will circulate, and not those of other private sector agents. Therefore, our...