Laboratory experiments on the provision of public goods follow subjects over time as they interact in a small group. In every period subjects allocate a fixed endowment between a private good and a group good that yields a return to all group members. These experiments produce data sets that are...

We establish that the Phillips curve is persistence-dependent: inflation responds differently to persistent versus moderately persistent (or versus transient) fluctuations in the unemployment gap. Previous work fails to model this dependence, so it finds numerous “inflation puzzles”—such...

The origins of the Great Inflation, a central 20th century U.S. macroeconomic event, remain contested. Prominent explanations are poor forecasts or deficient activity gap estimates. An alternative view: the FOMC was unwilling to fight inflation, perhaps due to political pressures. Our findings,...