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Showing results 1 to 10 of approximately 22.
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Journal Article
What Determines Debt Maturity?
What determines the maturity structure of debt? In this article, I develop a simple model to explore how the optimal maturity of debt issued by a firm (or a country) depends both on the firm?s cyclical state and other features of the economic environment in which it operates. I find that firms with better current earnings and better growth prospects issue debt with longer maturity, while firms operating in more-volatile environments issue debt with shorter maturity. Yield to maturity is a poor indicator of the risk of debt issued by a firm. The reason is simple: Yield to maturity captures ...
Journal Article
The growth effects of monetary policy
This article investigates the relationship between inflation and output, in the data and in standard models. The article reports that empirical cross-country studies generally find a nonlinear, negative relationship between inflation and output, a relationship that standard models cannot come close to reproducing. The article demonstrates that the models' problem may be due to their standard narrow assumption that all money is held by the public for making transactions. When the models are adjusted to also assume that banks are required to hold money, the models do a much better job. The ...
Working Paper
Optimal Management of an Epidemic: Lockdown, Vaccine and Value of Life
This paper analyzes the optimal management of a pandemic (stay-at-home and vaccination policies) in a dynamic model. The optimal lockdown policies respond to the spread of the virus with significant restrictions to employment, followed by partial loosening before the peak of the epidemic. Upon the availability of a vaccine, the optimal vaccination policy has an almost bang-bang property, despite the loss of immunity of the vaccinated: vaccinate at the highest possible rate, and then rapidly converge to the steady state. The model illustrates interesting trade-offs as it implies that lower ...
Journal Article
Inflation, growth, and financial intermediation
Report
Growth and business cycles
We present a class of convex endogenous growth models and analyze their performance in terms of both growth and business cycle criteria. The models we study have close analogs in the real business cycle literature. We interpret the exogenous growth rate of productivity as an endogenous growth rate of human capital. This perspective allows us to compare the strengths of the two classes of models. ; To highlight the mechanism that gives endogenous growth models the ability to improve upon their exogenous growth relatives, we study models that are symmetric in terms of human and physical capital ...
Journal Article
Human Capital and Development
Perhaps no question has attracted as much attention in the economics literature as ?Why are some countries richer than others?? In this article, the author revisits the ?development problem? and provides some estimates of the importance of human capital in accounting for cross-country differences in output per worker. His results suggest that human capital has a central role in determining the wealth of nations and that the quality of human capital varies systematically with the level of development.
Working Paper
Lifetime labor supply and human capital investment
We develop a model of retirement and human capital investment to study the effects of tax and retirement policies. Workers choose the supply of raw labor (career length) and also the human capital embodied in their labor. Our model explains a significant fraction of the US-Europe difference in schooling and retirement. The model predicts that reforms of the European retirement policies modeled after the US can deliver 15?35 percent gains in per-worker output in the long run. Increased human capital investment in and out of school accounts for most of the gains, with relatively small changes ...
Report
Why are married women working so much?
We study the large observed changes in labor supply by married women in the United States over 1950-1990, a period when labor supply by single women has hardly changed at all. We investigate the effects of changes in the gender wage gap, technological improvements in the production of nonmarket goods and potential inferiority of these goods on understanding this change. We find that small decreases in the gender wage gap can explain simultaneously the significant increases in the average hours worked by married women and the relative constancy in the hours worked by single women, and single ...
Working Paper
Sectoral shocks, reallocation frictions, and optimal government spending
What is the optimal policy response to a negative sectoral shock? How do frictions in goods and labor markets affect the nature and speed of the process of reallocating resources across alternative uses? Should government controlled inputs be allocated to compensate for frictions faced by the private sector or, rather, should they be deployed to complement private sector decisions? In this paper we make a first attempt to understand what features of an economy determine the answers to the previous questions. We study a model in which the drop in the private demand for structures frees up ...