Robert E. Lucas

Bio: Robert E. Lucas is an academic researcher from University of Chicago. The author has contributed to research in topics: Population & General equilibrium theory. The author has an hindex of 81, co-authored 204 publications receiving 94081 citations. Previous affiliations of Robert E. Lucas include National Bureau of Economic Research & Boston University.

Collected Papers on Monetary Theory

Abstract: Robert Lucas is one of the outstanding monetary theorists of the past hundred years. Along with Knut Wicksell, Irving Fisher, John Maynard Keynes, James Tobin, and Milton Friedman (his teacher), Lucas revolutionized our understanding of how money interacts with the real economy of production, consumption, and exchange. Lucas’s contributions are both methodological and substantive. Methodologically, he developed dynamic, stochastic, general equilibrium models to analyze economic decision-makers operating through time in a complex, probabilistic environment. Substantively, he incorporated the quantity theory of money into these models and derived its implications for money growth, inflation, and interest rates in the long run. He also showed the different effects of anticipated and unanticipated changes in the stock of money on economic fluctuations, and helped to demonstrate that there was not a long-run trade-off between unemployment and inflation (the Phillips curve) that policy-makers could exploit. The twenty-one papers collected in this volume fall primarily into three categories: core monetary theory and public finance, asset pricing, and the real effects of monetary instability. Published between 1972 and 2007, they will inspire students and researchers who want to study the work of a master of economic modeling and to advance economics as a pure and applied science.

Africa's Resurgence and International Migration: An Overview

Abstract: In this issue, geography, market integration and institutions are identified as the fundamental constraints on Africa's future prosperity. It is pointed out that, in line with the recommendations of The Report of the Commission for Africa, African governments and international partners can ameliorate the effects of these constraints through: investing in governance, peace and security; improving the investment climate by articulating and implementing suitable policies; improving the infrastructure; diversifying the economic base; and removing trade and non-trade barriers to intra-African trade as well as Africa's beneficial integration into the global economy. Also in this issue, the point is made that the widening gaps between Africa's economies and those of the industrialized nations contribute to the high levels of migration from Africa to the developed world. It is concluded that the developed nations need to support Africa's resurgence in order to reduce the poverty levels and improve economic growth prospects in Africa thereby reduce the pressure on the developed countries to control the influx of (unwanted) low skilled Africans to their countries, save them the cost and consequences of preventing the surge, and ameliorate other negative externalities associated with such migrants. Supporting Africa's resurgence will ensure that Africa does not lag behind yielding the associated benefit of reduced pressure for skilled and unskilled persons to migrate out of Africa and avoidance of perverse spatial distribution of people; the consequences of which can only be imagined. Copyright 2006, Oxford University Press.

Social Capital in the Creation of Human Capital

Abstract: In this paper, the concept of social capital is introduced and illustrated, its forms are described, the social structural conditions under which it arises are examined, and it is used in an analys...

A Contribution to the Empirics of Economic Growth

Abstract: This paper examines whether the Solow growth model is consistent with the international variation in the standard of living. It shows that an augmented Solow model that includes accumulation of human as well as physical capital provides an excellent description of the cross-country data. The paper also examines the implications of the Solow model for convergence in standards of living, that is, for whether poor countries tend to grow faster than rich countries. The evidence indicates that, holding population growth and capital accumulation constant, countries converge at about the rate the augmented Solow model predicts. This paper takes Robert Solow seriously. In his classic 1956 article Solow proposed that we begin the study of economic growth by assuming a standard neoclassical production function with decreasing returns to capital. Taking the rates of saving and population growth as exogenous, he showed that these two vari- ables determine the steady-state level of income per capita. Be- cause saving and population growth rates vary across countries, different countries reach different steady states. Solow's model gives simple testable predictions about how these variables influ- ence the steady-state level of income. The higher the rate of saving, the richer the country. The higher the rate of population growth, the poorer the country. This paper argues that the predictions of the Solow model are, to a first approximation, consistent with the evidence. Examining recently available data for a large set of countries, we find that saving and population growth affect income in the directions that Solow predicted. Moreover, more than half of the cross-country variation in income per capita can be explained by these two variables alone. Yet all is not right for the Solow model. Although the model correctly predicts the directions of the effects of saving and

Endogenous Technological Change

Abstract: Growth in this model is driven by technological change that arises from intentional investment decisions made by profit-maximizing agents. The distinguishing feature of the technology as an input is that it is neither a conventional good nor a public good; it is a nonrival, partially excludable good. Because of the nonconvexity introduced by a nonrival good, price-taking competition cannot be supported. Instead, the equilibrium is one with monopolistic competition. The main conclusions are that the stock of human capital determines the rate of growth, that too little human capital is devoted to research in equilibrium, that integration into world markets will increase growth rates, and that having a large population is not sufficient to generate growth.

Endogenous Technological Change

Abstract: Growth in this model is driven by technological change that arises from intentional investment decisions made by profit maximizing agents. The distinguishing feature of the technology as an input is that it is neither a conventional good nor a public good; it is a nonrival, partially excludable good. Because of the nonconvexity introduced by a nonrival good, price-taking competition cannot be supported, and instead, the equilibriumis one with monopolistic competition. The main conclusions are that the stock of human capital determines the rate of growth, that too little human capital is devoted to research in equilibrium, that integration into world markets will increase growth rates, and that having a large population is not sufficient to generate growth.