Early empirical studies of the New Keynesian Phillips Curve imply implausibly high levels of price stickiness for standard monetary models with Calvo-type nominal rigidities. More recently researchers have found that the addition of real rigidities through firm-specific capital adjustment costs...

A discretionary policymaker responds to the state of the economy each period. Private agents' current behavior determines the future state based on expectations of future policy. Discretionary policy thus can lead to dynamic complementarity between private agents and a policymaker, which in turn...