免费发几篇经典的内生增长文章

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<P> 125982.pdf (549.78 KB)

2007-6-14 00:19:00 上传

免费发几篇经典的内生增长模型

<br></P>
<P>Endogenous Technological Change（1990）</P>
<P><br>Paul M. Romer</P>
<P><br>       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.</P>

[此贴子已经被作者于2007-6-14 0:28:49编辑过]

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关键词：内生增长 Monopolistic Nonconvexity Conventional equilibrium investment technology partially Because neither

125983.pdf (4.14 MB)

2007-6-14 00:21:00 上传

免费发几篇经典的内生增长模型

ON THE MECHANICS OF ECONOMIC DEVELOPMENT（1988）

Robert E. LUCAS, Jr.

This paper considers the prospects for constructing a neoclassical theory of gcowth and international trade that is consistent with some of the main features of economic development. Three models are considered and compared to evidence: a model emphasizing physical capital accumulation and technological change, a model emphasizing human capital accumulation through schooling, and a model emphasizing specialized human capital accumulation through learning-by-doing.

[此贴子已经被作者于2007-6-14 0:23:50编辑过]

125984.pdf (640.59 KB)

2007-6-14 00:22:00 上传

免费发几篇经典的内生增长模型

A Model of Growth Through Creative Destruction（1992）

Philippe Aghion; Peter Howitt

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.

125985.pdf (467.03 KB)

2007-6-14 00:24:00 上传

免费发几篇经典的内生增长模型

Quality Ladders in the Theory of Growth（1991）

Gene M. Grossman; Elhanan Helpman

We develop a model of repeated product improvements in a continuum of sectors. Each product follows a stochastic progression up a quality ladder. Progress is not uniform across sectors, so an equilibrium distribution of qualities evolves over time. But the rate of aggregate growth is constant. The growth rate responds to profit incentives in the R&D sector. We explore the welfare properties of our model. Then we relate our approach to an alternative one that views product innovation as a process of generating an ever-expanding range of horizontally differentiated products. Finally, we apply the model to issues of resource accumulation and international trade.

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