Creator: Chari, V. V., Kehoe, Patrick J., and McGrattan, Ellen R. Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 664 Abstract:
In the 1970s macroeconomists often disagreed bitterly. Macroeconomists have now largely converged on method, model design, and macroeconomic policy advice. The disagreements that remain all stem from the practical implementation of the methodology. Some macroeconomists think that New Keynesian models are on the verge of being useful for quarter-to-quarter quantitative policy advice. We do not. We argue that the shocks in these models are dubiously structural and show that many of the features of the model as well as the implications due to these features are inconsistent with microeconomic evidence. These arguments lead us to conclude that New Keynesian models are not yet useful for policy analysis.
Fach: E32 - Business Fluctuations; Cycles and E58 - Central Banks and Their Policies
Creator: Kehoe, Patrick J. and Perri, Fabrizio Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 621 Abstract:
Previous literature has shown that the study and characterization of constrained efficient allocations in economies with limited enforcement is useful to understand the limited risk sharing observed in many contexts, in particular between sovereign countries. In this paper we show that these constrained efficient allocations arise as equilibria in an economy in which private agents behave competitively, taking as given a set of taxes. We then show that these taxes, which end up limiting risk sharing, arise as an equilibrium of a dynamic game between governments. Our decentralization is different from the existing ones proposed in the literature. We find it intuitively appealing and we think it goes farther than the existing literature in endogenizing the primitive forces that lead to a lack of risk sharing in equilibrium.
Stichwort: Sustainable equilibrium, Decentralization, Incomplete markets, Default, Enforcement constraints, Sovereign debt, and Risk-sharing Fach: E44 - Financial Markets and the Macroeconomy, D50 - General Equilibrium and Disequilibrium: General, E32 - Business Fluctuations; Cycles, F34 - International Lending and Debt Problems, E21 - Macroeconomics: Consumption; Saving; Wealth, and F30 - International Finance: General
Creator: Kehoe, Patrick J., Midrigan, Virgiliu, and Pastorino, Elena Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 566 Abstract:
Modern business cycle theory focuses on the study of dynamic stochastic general equilibrium models that generate aggregate fluctuations similar to those experienced by actual economies. We discuss how this theory has evolved from its roots in the early real business cycle models of the late 1970s through the turmoil of the Great Recession four decades later. We document the strikingly different pattern of comovements of macro aggregates during the Great Recession compared to other postwar recessions, especially the 1982 recession. We then show how two versions of the latest generation of real business cycle models can account, respectively, for the aggregate and the cross-regional fluctuations observed in the Great Recession in the United States.
Stichwort: New Keynesian models, Financial frictions, and External validation Fach: E52 - Monetary Policy, E32 - Business Fluctuations; Cycles, E13 - General Aggregative Models: Neoclassical, and E61 - Policy Objectives; Policy Designs and Consistency; Policy Coordination
Creator: Kehoe, Patrick J., Midrigan, Virgiliu, and Pastorino, Elena Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 536 Abstract:
During the Great Recession, regions of the United States that experienced the largest declines in household debt also experienced the largest drops in consumption, employment, and wages. Employment declines were larger in the nontradable sector and for firms that were facing the worst credit conditions. Motivated by these findings, we develop a search and matching model with credit frictions that affect both consumers and firms. In the model, tighter debt constraints raise the cost of investing in new job vacancies and thus reduce worker job finding rates and employment. Two key features of our model, on-the-job human capital accumulation and consumer-side credit frictions, are critical to generating sizable drops in employment. On-the-job human capital accumulation makes the flows of benefits from posting vacancies long-lived and so greatly amplifies the sensitivity of such investments to credit frictions. Consumer-side credit frictions further magnify these effects by leading wages to fall only modestly. We show that the model reproduces well the salient cross-regional features of the U.S. data during the Great Recession.
Stichwort: Search and matching, Human capital, Employment, and Debt constraints Fach: E21 - Macroeconomics: Consumption; Saving; Wealth, E32 - Business Fluctuations; Cycles, E24 - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity, J21 - Labor Force and Employment, Size, and Structure, and J64 - Unemployment: Models, Duration, Incidence, and Job Search
Creator: Chari, V. V., Christiano, Lawrence J., and Kehoe, Patrick J. Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 520 Stichwort: Business cycles, Policy analysis, Exogenous growth model, Monetary policy, Optimal taxation, Friedman rule, and Fiscal policy Fach: E52 - Monetary Policy and E32 - Business Fluctuations; Cycles
Creator: Arellano, Cristina, Bai, Yan, and Kehoe, Patrick J. Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 466 Abstract:
The U.S. Great Recession featured a large decline in output and labor, tighter financial conditions, and a large increase in firm growth dispersion. We build a model in which increased volatility at the firm level generates a downturn and worsened credit conditions. The key idea is that hiring inputs is risky because financial frictions limit firms' ability to insure against shocks. An increase in volatility induces firms to reduce their inputs to reduce such risk. Out model can generate most of the decline in output and labor in the Great Recession and the observed increase in firms' interest rate spreads.
Stichwort: Credit crunch, Credit constraints, Uncertainty shocks, Firm heterogeneity, Firm credit spreads, Labor wedge, and Great Recession Fach: E44 - Financial Markets and the Macroeconomy, E32 - Business Fluctuations; Cycles, E23 - Macroeconomics: Production, E24 - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity, D53 - General Equilibrium and Disequilibrium: Financial Markets, and D52 - Incomplete Markets
Creator: Kehoe, Patrick J. and Midrigan, Virgiliu Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 413 Abstract:
Recent studies say prices change about every four months. Economists have interpreted this high frequency as evidence against the importance of sticky prices for the real effects of monetary policy. Theory implies that this interpretation is correct if most price changes are regular, but not if most are temporary, as in the data. Temporary changes have a striking feature: after such a change, the nominal price tends to return exactly to its preexisting level. We study versions of Calvo and menu cost models that replicate this feature. Both models predict that the degree of aggregate price stickiness is determined mostly by the frequency of regular price changes, not by the combined frequency of temporary and regular price changes. Since regular prices are sticky in the data, the models predict a substantial degree of aggregate price stickiness even though micro prices change frequently. In particular, the aggregate price level in our models is as sticky as in standard models in which micro prices change about once a year. In this sense, prices are sticky after all.
Stichwort: Menu costs, Sticky prices, and Sales Fach: E24 - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity, E32 - Business Fluctuations; Cycles, and E30 - Prices, Business Fluctuations, and Cycles: General (includes Measurement and Data)
Creator: Chari, V. V. and Kehoe, Patrick J. Series: Staff report (Federal Reserve Bank of Minneapolis. Research Department) Number: 399 Abstract:
Robert Solow has criticized our 2006 Journal of Economic Perspectives essay describing “Modern Macroeconomics in Practice.” Solow eloquently voices the commonly heard complaint that too much macroeconomic work today starts with a model with a single type of agent. We argue that modern macroeconomics may not end too far from where Solow prefers. He is also critical of how modern macroeconomists use data to construct models. Specifically, he seems to think that calibration is the only way that our models encounter data. To the contrary, we argue that modern macroeconomics uses a wide variety of empirical methods and that this big-tent approach has served macroeconomics well. Solow also questions our claim that modern macroeconomics is firmly grounded in economic theory. We disagree and explain why.
Fach: E40 - Money and Interest Rates: General, E20 - Consumption, Saving, Production, Investment, Labor Markets, and Informal Economy: General (includes Measurement and Data), E12 - General Aggregative Models: Keynes; Keynesian; Post-Keynesian, E21 - Macroeconomics: Consumption; Saving; Wealth, E50 - Monetary Policy, Central Banking, and the Supply of Money and Credit: General, E13 - General Aggregative Models: Neoclassical, E22 - Investment; Capital; Intangible Capital; Capacity, E52 - Monetary Policy, and E32 - Business Fluctuations; Cycles