We construct a model to capture the Keynesian idea that production and employment decisions are based on expectations of aggregate demand driven by sentiments and that realized demand follows from the production and employment decisions of firms. We cast the Keynesian idea into a simple model...

Yale University professor John Geanakoplos discusses implications of “the leverage cycle”—a phenomenon in which leverage is excessive prior to a financial crisis and unacceptably low during the crisis—for regulatory policy and reform. Presented as the keynote address at "Central Bank...