Search Results
Working Paper
Heterogeneous firms, productivity and poverty traps
We present a model of endogenous total factor productivity which generates poverty traps. We obtain multiple steady-state equilibria for an arbitrarily small degree of increasing returns to scale. While the most productive firms operate across all the steady states, in a poverty trap less productive firms operate as well. This results in lower average firm productivity and lower total factor productivity. In our model a growth miracle is accompanied by a shift of employment from small to large firms, consistent with the empirical evidence. We calibrate our model and relate entry costs to the ...
Speech
\"Classic Policy Benchmarks for Heterogeneous Agent Economies,\" Monetary Policy and Heterogeneity Conference, Hong Kong Monetary Authority and Federal Reserve Bank of New York, Hong Kong, China.
There has been increasing interest in large-scale heterogeneous agent DSGE models. These models have realistic degrees of heterogeneity?approaching observed Gini coefficients in U.S. data. They more directly address issues around income, financial wealth and consumption inequality. What is the role of monetary policy?
Journal Article
Predicting consumption: a lesson in real-time data
Journal Article
Changing trends in the labor force: a survey
The composition of the American workforce has changed dramatically over the past half century as a result of both the emergence of married women as a substantial component of the labor force and an increase in the number of minority workers. The aging of the population has contributed to this change as well. In this paper, the authors review the evidence of changing labor force participation rates, estimate the trends in labor force participation over the past 50 years, and find that aggregate participation has stabilized after a period of persistent increases. Moreover, they examine the ...
Working Paper
Comovement: it's not a puzzle
A defining feature of business cycles is the comovement of inputs at the sectoral level with aggregate activity. Standard models cannot account for this phenomenon. This paper develops and estimates a two-sector dynamic general equilibrium model that can account for this key regularity. My model incorporates three shocks to the economy: monetary policy shocks, neutral technology shocks, and embodied technology shocks in the capital-producing sector. The estimated model is able to account for the response of the US economy to all three shocks. Using this model, I argue that the key friction ...
Working Paper
Asymmetry, Complementarities, and State Dependence in Federal Reserve Forecasts
Forecasts are a central component of policy making; the Federal Reserve''s forecasts are published in a document called the Greenbook. Previous studies of the Greenbook''s inflation forecasts have found them to be rationalizable but asymmetric if considering particular sub-periods, e.g., before and after the Volcker appointment. In these papers, forecasts are analyzed in isolation, assuming policymakers value them independently. We analyze the Greenbook fore- casts in a framework in which the forecast errors are allowed to interact. We find that allowing the losses to interact makes the ...
Working Paper
Aggregate shocks and labor market fluctuations
This paper evaluates the dynamic response of worker flows, job flows, and vacancies to aggregate shocks in a structural vector autoregression. We identify demand, monetary, and technology shocks by imposing sign restrictions on the responses of output, inflation, the interest rate, and the relative price of investment. No restrictions are placed on the responses of job and worker flows variables. We find that both investment-specific and neutral technology shocks generate responses to job and worker flows variables that are qualitatively similar to those induced by monetary and demand shocks. ...
Journal Article
Convergence across states and people