The macroeconomic models used by major institutions including the Federal Reserve and the International Monetary Fund (IMF) failed to predict the inflation surge during 2021-2023. The output gap, the unemployment gap, the New Keynesian Phillips curve and inflation expectations did not give...

This paper studies the steady-state costs of inflation in a general-equilibrium model with real per capita output growth and staggered nominal price and wage contracts. Our analysis shows that trend inflation has important effects on the economy when combined with nominal contracts and real...

The effects of inflation on real wage dispersion and welfare are studied in a cash-in-advance economy with a Walrasian goods market but a labor market with search friction. In the labor market, firms post wages and both employed and unemployed workers search among the posted wages. In...

Reliance on established macroeconomic thinking is not of much use in trying to understand what to do in response to the constellation of forces driving up inflation in these times of COVID-19 and war. This paper attempts to reduce the heat and turn up the light in the debate on the return of...

Estimating potential output and the output gap - the difference between actual output and its potential - is important for the proper conduct of monetary policy. However, the measurement and interpretation of potential output, and hence the output gap, is fraught with uncertainty, since it is...

This paper reexamines the Phillips and Beveridge curves to explain the inflation surge in the U.S. during the 2020s. We argue that the pre-surge consensus regarding both curves requires substantial revision. We propose that the Inverse-L (INV-L) New Keynesian Phillips Curve replace the standard...

We study competitive search in goods markets in a heterogeneous-agent monetary model. The model accounts for three stylized facts connecting inflation to consumption inequality, to price dispersion, and to the speed of monetary payments. With competitive search, individuals’ endogenous...

This paper compares the forecasting performance of some leading models of inflation for the cross section of G-7 countries. We show that bivariate and trivariate models suggested by economic theory or statistical analysis are hardly better than univariate models. Phillips curve specifications...

Discussions on "profit inflation" are mired in conceptual unclarities, definitional idiosyncrasies and data problems. This article attempts to bring conceptual clarity to the debate on profit inflation, defining profit inflation strictly as an increase in the gross output price that is caused by...

This paper critically evaluates debates over the causes of U.S. inflation. We first show that claims that the Biden stimulus was the major cause of inflation are mistaken: the key data series – stimulus spending and inflation – move dramatically out of phase. While the first ebbs quickly,...