The Federal Reserve Board’s P-Star inflation forecasting model predicts changes in inflation from the gap between actual and equilibrium prices. The model has a distinguished history. Quantity theorists from David Hume to Milton Friedman have long used versions of it to explain how money stock...

Fisher’s advice to the policymakers: Adjust the money stock to correct price-level deviations from target. He neglected to say whether money should respond (1) to the gap between actual and target prices, (2) to the gap’s rate of change, (3) to the gap’s cumulative value over time, or (4)...

We study discretionary equilibrium in the Calvo pricing model for a monetary authority that chooses the money supply. The steady-state inflation rate is above 8 percent for a baseline calibration, but it varies substantially with alternative structural parameter values. If the initial condition...

These notes provide the derivations of results stated without proof in Hornstein (2009). For a simple model of the demand for housing, it is shown that on a balanced growth path, the rate at which the relative price of housing changes over time is determined by the relative productivity growth...

The relative prices of different categories of consumption goods have been trending over time. Assuming they are exogenous with respect to monetary policy, these trends imply that monetary policy cannot stabilize the prices of all consumption categories. If prices are sticky, monetary policy...

This paper develops a general equilibrium model in which households face fixed costs associated with searching for a new supplier of consumption goods. These search costs provide firms with some monopoly power over their existing customers and generate the kind of customer flow dynamics first...

We describe a stochastic economic environment in which the mix of money and trade credit used as means of payment is endogenous. The economy has an infinite horizon, spatial separation and a credit-related transaction cost, but no capital. We find that the equilibrium prices of arbitrary...

Optimal monetary policy maximizes welfare, given frictions in the economic environment. Constructing a model with two sets of frictions - the Keynesian friction of costly price adjustment by imperfectly competitive firms and the Monetarist friction of costly exchange of wealth for goods - we...