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Peter Howitt

Bio: Peter Howitt is an academic researcher from Brown University. The author has contributed to research in topics: Endogenous growth theory & Competition (economics). The author has an hindex of 58, co-authored 171 publications receiving 27996 citations. Previous affiliations of Peter Howitt include University of Western Ontario & University of Notre Dame.


Papers
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ReportDOI
TL;DR: In this paper, a model of endogenous growth is developed in which vertical innovations, generated by a competitive research sector, constitute the underlying source of growth and equilibrium is determined by a forward-looking difference equation, according to which the amount of research in any period depends upon the expected amount of the research next period.
Abstract: A model of endogenous growth is developed in which vertical innovations, generated by a competitive research sector, constitute the underlying source of growth. Equilibrium is determined by a forward-looking difference equation, according to which the amount of research in any period depends upon the expected amount of research next period. One source of this intertemporal relationship is creative destruction. That is, the prospect of more future research discourages current research by threatening to destroy the rents created by current research. The paper analyzes the positive and normative properties of stationary equilibria, in which research employment is constant and GNP follows a random walk with drift, although under some circumstances cyclical equilibria also exist. Both the average growth rate and the variance of the growth rate are increasing functions of the size of innovations, the size of the skilled labor force, and the productivity of research as measured by a parameter indicating the effect of research on the Poisson arrival rate of innovations; and decreasing functions of the rate of time preference of the representative individual. Under laissez faire the economy's growth rate may be more or less than optimal because, in addition to the appropriability and intertemporal spillover effects of other endogenous growth models, which tend to make growth slower than optimal, the model also has effects that work in the opposite direction. In particular, the fact that private research firms do not internalize the destruction of rents generated by their innovations introduces a business-stealing effect similar to that found in the partial-equilibrium patent race literature. When we endogenize the size of innovations we find that business stealing also makes innovations too small.

5,657 citations

Posted Content
TL;DR: Aghion and Howitt make use of Schumpeter's concept of creative destruction, the competitive process whereby entrepreneurs constantly seek new ideas that will render their rivals' ideas obsolete as discussed by the authors.
Abstract: Advanced economies have experienced a tremendous increase in material well-being since the industrial revolution. Modern innovations such as personal computers, laser surgery, jet airplanes, and satellite communication have made us rich and transformed the way we live and work. But technological change has also brought with it a variety of social problems. It has been blamed at various times for increasing wage and income inequality, unemployment, obsolescence of physical and human capital, environmental deterioration, and prolonged recessions. To understand the contradictory effects of technological change on the economy, one must delve into structural details of the innovation process to analyze how laws, institutions, customs, and regulations affect peoples' incentive and ability to create new knowledge and profit from it. To show how this can be done, Philippe Aghion and Peter Howitt make use of Schumpeter's concept of creative destruction, the competitive process whereby entrepreneurs constantly seek new ideas that will render their rivals' ideas obsolete. Whereas other books on endogenous growth stress a particular aspect, such as trade or convergence, this book provides a comprehensive survey of the theoretical and empirical debates raised by modern growth theory. It develops a powerful engine of analysis that sheds light not only on economic growth per se, but on the many other phenomena that interact with growth, such as inequality, unemployment, capital accumulation, education, competition, natural resources, international trade, economic cycles, and public policy.

3,005 citations

Report SeriesDOI
TL;DR: In this article, the authors investigate the relationship between product market competition and innovation and find strong evidence of an inverted-U relationship using panel data, where competition discourages laggard firms from innovating but encourages neck-and-neck firms to innovate.
Abstract: This paper investigates the relationship between product market competition and innovation. We find strong evidence of an inverted-U relationship using panel data. We develop a model where competition discourages laggard firms from innovating but encourages neck-and-neck firms to innovate. Together with the effect of competition on the equilibrium industry structure, these generate an inverted-U. Two additional predictions of the model—that the average technological distance between leaders and followers increases with competition, and that the inverted-U is steeper when industries are more neck-and-neck—are both supported by the data.

2,297 citations

Journal ArticleDOI
TL;DR: In this paper, the authors investigated the relationship between product market competition and innovation and found a robust inverted-U relationship between competition and patenting, and developed an endogenousm growth model with step-by-step innovation that can deliver this inverted U pattern.
Abstract: This paper investigates the relationship between product market competition and innovation. It uses the radical policy reforms in the UK as instruments for changes in product market competition, and finds a robust inverted-U relationship between competition and patenting. It then develops an endogenousm growth model with step-by-step innovation that can deliver this inverted-U pattern. In this model, competition has an ambiguous effect on innovation. On the one hand, it discourages laggard firms from innovating, as it reduces their rents from catching up with the leaders in the same industry. On the other hand, it encourages neck-and-neck firms to innovate in order to escape competition with their rival. The inverted-U pattern results from the interplay between these two effects, together with the effect of competition on the equilibrium industry structure. The model generates two additional predictions: on the relationship between competition and the average technological distance between leaders and followers across industries; and on the relationship between the distance of an industry to its technological frontier and the steepness of the inverted-U. Both predictions are supported by the data.

1,114 citations

Journal ArticleDOI
TL;DR: In contrast to earlier Schumpeterian models in which innovations are always made by outsider firms who earn no rents if they fail to innovate and become monopolies if they do innovate, the authors find that the usual Schumpetersian effect of more intense product market competition is almost always outweighed by the increased incentive for firms to innovate in order to escape competition, so that PMC has a positive effect on growth.
Abstract: Is more intense product market competition and imitation good or bad for growth? This question is addressed in the context of an endogenous growth model with "step-by-step" innovations, in which technological laggards must first catch up with the leading-edge technology before battling for technological leadership in the future. In contrast to earlier Schumpeterian models in which innovations are always made by outsider firms who earn no rents if they fail to innovate and become monopolies if they do innovate, here we find: first, that the usual Schumpeterian effect of more intense product market competition (PMC) is almost always outweighed by the increased incentive for firms to innovate in order to escape competition, so that PMC has a positive effect on growth; second, that a little imitation is almost always growth-enhancing, as it promotes more frequent neck-and-neck competition, but too much imitation is unambiguously growth-reducing. The model thus points to complementary roles for competition (anti-trust) policy and patent policy.

1,075 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, a Gaussian process classifier was used to estimate the probability of computerisation for 702 detailed occupations, and the expected impacts of future computerisation on US labour market outcomes, with the primary objective of analyzing the number of jobs at risk and the relationship between an occupations probability of computing, wages and educational attainment.

4,853 citations

Posted Content
TL;DR: A theme of the text is the use of artificial regressions for estimation, reference, and specification testing of nonlinear models, including diagnostic tests for parameter constancy, serial correlation, heteroscedasticity, and other types of mis-specification.
Abstract: Offering a unifying theoretical perspective not readily available in any other text, this innovative guide to econometrics uses simple geometrical arguments to develop students' intuitive understanding of basic and advanced topics, emphasizing throughout the practical applications of modern theory and nonlinear techniques of estimation. One theme of the text is the use of artificial regressions for estimation, reference, and specification testing of nonlinear models, including diagnostic tests for parameter constancy, serial correlation, heteroscedasticity, and other types of mis-specification. Explaining how estimates can be obtained and tests can be carried out, the authors go beyond a mere algebraic description to one that can be easily translated into the commands of a standard econometric software package. Covering an unprecedented range of problems with a consistent emphasis on those that arise in applied work, this accessible and coherent guide to the most vital topics in econometrics today is indispensable for advanced students of econometrics and students of statistics interested in regression and related topics. It will also suit practising econometricians who want to update their skills. Flexibly designed to accommodate a variety of course levels, it offers both complete coverage of the basic material and separate chapters on areas of specialized interest.

4,284 citations

Book
01 Aug 1990
TL;DR: In this article, the model of balanced growth is used to model the labour market and balance-growth adjustment dynamics, and search intensity and job advertising are modeled as ananlysis of the labor market.
Abstract: Part 1 Unemployment in the model of balanced growth: the labour market long-run equilibrium and balanced growth adjustment dynamics. Part 2 further ananlysis of the labour market: search intensity and job advertising.

3,638 citations

Journal ArticleDOI
TL;DR: The authors construct an endogenous growth model in which financial systems evaluate prospective entrepreneurs, mobilize savings to finance the most promising productivity-enhancing activities, diversify the risks associated with these innovative activities and reveal the expected profits from engaging in innovation rather than the production of existing goods using existing methods.

3,452 citations

Posted Content
TL;DR: Beck, Levine, and Loayza as mentioned in this paper evaluate whether the level of development in the banking sector exerts a causal impact on economic growth and its sources- total factor productivity growth, physical capital accumulation, and private saving.
Abstract: Development of the banking sector exerts a large, causal impact on total factor productivity growth, which in turn causes GDP to grow. Whether banking development has a long-run effect on capital growth or private saving remains to be seen. Beck, Levine, and Loayza evaluate whether the level of development in the banking sector exerts a causal impact on economic growth and its sources- total factor productivity growth, physical capital accumulation, and private saving. They use (1) a pure cross-country instrumental variable estimator to extract the exogenous component of banking development and (2) a new panel technique that controls for country-specific effects and endogeneity. They find that: - Banks do exert a large, causal impact on total factor productivity growth, which feeds through to overall GDP growth. - The long-run links between banking development and both capital growth and private savings are more tenuous. This paper - a product of Finance, Development Research Group - is part of a larger effort in the group to understand the links between the financial system and economic growth.

3,174 citations