Résultats de recherche
Creator: Luttmer, Erzo G. J. Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 724 Abstract:
This paper describes how long-run growth emerges in four closely related models that combine individual discovery with some form of social learning. In a large economy, there is a continuum of long-run growth rates and associated stationary distributions when it is possible to learn from individuals in the right tail of the productivity distribution. What happens in the long run depends on initial conditions. Two distinct literatures, one on reaction-diffusion equations, and another on quasi-stationary distributions suggest a unique long-run outcome when the initial productivity distribution has bounded support.
Mot-clé: Knowledge diffusion and Growth Assujettir: O33 - Technological Change: Choices and Consequences; Diffusion Processes
Creator: Ayres, João, Navarro, Gaston, Nicolini, Juan Pablo, and Teles, Pedro Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 723 Abstract:
We study a variation of the standard model of sovereign default, as in Aguiar and Gopinath (2006) or Arellano (2008), and show that this variation is consistent with multiple interest rate equilibria. Some of those equilibria correspond to the ones identified by Calvo (1988), where default is likely because rates are high, and rates are high because default is likely. The model is used to simulate equilibrium movements in sovereign bond spreads that resemble sovereign debt crises. It is also used to discuss lending policies similar to the ones announced by the European Central Bank in 2012.
Mot-clé: Sovereign default, Interest rate spreads, and Multiple equilibria Assujettir: E44 - Financial Markets and the Macroeconomy and F34 - International Lending and Debt Problems
Creator: Bocola, Luigi Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 722 Abstract:
This paper examines the macroeconomic implications of sovereign credit risk in a business cycle model where banks are exposed to domestic government debt. The news of a future sovereign default hampers financial intermediation. First, it tightens the funding constraints of banks, reducing their available resources to finance firms (liquidity channel). Second, it generates a precautionary motive for banks to deleverage (risk channel). I estimate the model using Italian data, finding that i) sovereign credit risk was recessionary and that ii) the risk channel was sizable. I then use the model to evaluate the effects of subsidized long term loans to banks, calibrated to the ECB’s longer-term refinancing operations. The presence of strong precautionary motives at the time of policy enactment implies that bank lending to firms is not very sensitive to these credit market interventions.
Mot-clé: Credit policies, Financial constraints, and Sovereign debt crises Assujettir: E44 - Financial Markets and the Macroeconomy, G21 - Banks; Depository Institutions; Micro Finance Institutions; Mortgages, E32 - Business Fluctuations; Cycles, and G01 - Financial Crises
Creator: Hall, Robert E. and Schulhofer-Wohl, Sam Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 721 Abstract:
Matching efficiency is the productivity of the process for matching jobseekers to available jobs. Job-finding is the output; vacant jobs and active jobseekers are the inputs. Measurement of matching efficiency follows the same principles as measuring a Hicks-neutral index of productivity of production. We develop a framework for measuring matching productivity when the population of jobseekers is heterogeneous. The efficiency index for each type of jobseeker is the monthly job-finding rate for the type adjusted for the overall tightness of the labor market. We find that overall matching efficiency declined over the period, at just below its earlier downward trend. We develop a new approach to measuring matching rates that avoids counting short-duration jobs as successes. And we show that the outward shift in the Beveridge curve in the post-crisis period is the result of pre-crisis trends, not a downward shift in matching efficiency attributable to the crisis.
Mot-clé: Beveridge curve, Job-finding rates, and Matching efficiency Assujettir: J63 - Labor Turnover; Vacancies; Layoffs and E24 - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity
Creator: Adam, Klaus, Marcet, Albert, and Nicolini, Juan Pablo Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 720 Abstract:
Consumption-based asset pricing models with time-separable preferences can generate realistic amounts of stock price volatility if one allows for small deviations from rational expectations. We consider rational investors who entertain subjective prior beliefs about price behavior that are not equal but close to rational expectations. Optimal behavior then dictates that investors learn about price behavior from past price observations. We show that this imparts momentum and mean reversion into the equilibrium behavior of the price-dividend ratio, similar to what can be observed in the data. When estimating the model on U.S. stock price data using the method of simulated moments, we find that it can quantitatively account for the observed volatility of returns, the volatility and persistence of the price-dividend ratio, and the predictability of long-horizon returns. For reasonable degrees of risk aversion, the model generates up to one-half of the equity premium observed in the data. It also passes a formal statistical test for the overall goodness of fit, provided one excludes the equity premium from the set of moments to be matched.
Mot-clé: Subjective beliefs, Asset pricing, Learning, and Internal rationality Assujettir: E44 - Financial Markets and the Macroeconomy and G12 - Asset Pricing; Trading Volume; Bond Interest Rates
Creator: Guvenen, Fatih, Karahan, Fatih, Ozkan, Serdar, and Song, Jae Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 719 Abstract:
We study the evolution of individual labor earnings over the life cycle using a large panel data set of earnings histories drawn from U.S. administrative records. Using fully nonparametric methods, our analysis reaches two broad conclusions. First, earnings shocks display substantial deviations from lognormality–the standard assumption in the incomplete markets literature. In particular, earnings shocks display strong negative skewness and extremely high kurtosis–as high as 30 compared with 3 for a Gaussian distribution. The high kurtosis implies that in a given year, most individuals experience very small earnings shocks, and a small but non-negligible number experience very large shocks. Second, these statistical properties vary significantly both over the life cycle and with the earnings level of individuals. We also estimate impulse response functions of earnings shocks and find important asymmetries: positive shocks to high-income individuals are quite transitory, whereas negative shocks are very persistent; the opposite is true for low-income individuals. Finally, we use these rich sets of moments to estimate econometric processes with increasing generality to capture these salient features of earnings dynamics.
Mot-clé: Earnings dynamics, Nonparametric estimation, Life-cycle earnings risk, Kurtosis, Non-Guassian shocks, Normal mixture, and Skewness Assujettir: J24 - Human Capital; Skills; Occupational Choice; Labor Productivity, J31 - Wage Level and Structure; Wage Differentials, and E24 - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity
Creator: Lucas, Jr., Robert E. and Nicolini, Juan Pablo Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 718 Abstract:
We show that regulatory changes that occurred in the banking sector in the early eighties, which considerably weakened Regulation Q, can explain the apparent instability of money demand during the same period. We evaluate the effects of the regulatory changes using a model that goes beyond aggregates as M1 and treats currency and different deposit types as alternative means of payments. We use the model to construct a new monetary aggregate that performs remarkably well for the entire period 1915-2012.
Mot-clé: Money demand and Monetary base Assujettir: E41 - Demand for Money and E40 - Money and Interest Rates: General
Creator: Blandin, Adam, Boyd, John H., and Prescott, Edward C. Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 717 Abstract:
We develop an equilibrium concept in the Debreu (1954) theory of value tradition for a class of adverse selection economies which includes the Spence (1973) signaling and Rothschild-Stiglitz (1976) insurance environments. The equilibrium exists and is optimal. Further, all equilibria have the same individual type utility vector. The economies are large with a finite number of types that maximize expected utility on an underlying commodity space. An implication of the analysis is that the invisible hand works for this class of adverse selection economies.
Mot-clé: Insurance, Mutual organization, Adverse selection equilibrium, Theory of value, The core, and Signaling Assujettir: G22 - Insurance; Insurance Companies; Actuarial Studies, C62 - Existence and Stability Conditions of Equilibrium, G29 - Financial Institutions and Services: Other, D46 - Value Theory, and D82 - Asymmetric and Private Information; Mechanism Design
Creator: Guvenen, Fatih, Kaplan, Greg, and Song, Jae Series: Working paper (Federal Reserve Bank of Minneapolis. Research Department) Number: 716 Abstract:
We analyze changes in the gender structure at the top of the earnings distribution in the United States over the last 30 years using a 10% sample of individual earnings histories from the Social Security Administration. Despite making large inroads, females still constitute a small proportion of the top percentiles: the glass ceiling, albeit a thinner one, remains. We measure the contribution of changes in labor force participation, changes in the persistence of top earnings, and changes in industry and age composition to the change in the gender composition of top earners. A large proportion of the increased share of females among top earners is accounted for by the mending of, what we refer to as, the paper floor – the phenomenon whereby female top earners were much more likely than male top earners to drop out of the top percentiles. We also provide new evidence at the top of the earnings distribution for both genders: the rising share of top earnings accruing to workers in the Finance and Insurance industry, the relative transitory status of top earners, the emergence of top earnings gender gaps over the life cycle, and gender differences among lifetime top earners.
Mot-clé: Top earners, Paper floor, Industry, Gender gap, and Glass ceiling Assujettir: G10 - General Financial Markets: General (includes Measurement and Data), J31 - Wage Level and Structure; Wage Differentials, and E24 - Employment; Unemployment; Wages; Intergenerational Income Distribution; Aggregate Human Capital; Aggregate Labor Productivity