The Phillips curve has been much flatter in the past twenty years than in the preceding decades. We consider two hypotheses. One is that prices at the microeconomic level are stickier than they used to be---in the context of the canonical Calvo model, firms are adjusting prices less often. The...

We produce business cycle chronologies for U.S. states and evaluate the factors that change the probability of moving from one phase to another. We find strong evidence for positive duration dependence in all business cycle phases but find that the effect is modest relative to other state- and...