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1.
Trade and the Transmission of Technology   总被引:25,自引:0,他引:25  
This paper integrates earlier studies on the link of productivity and research and development (R&D) in different industries of a closed economy with the more recent emphasis on R&D-driven growth and international trade in open economies. In this framework, technology in the form of product designs is transmitted to other industries, both domestically as well as internationally, through trade in differentiated intermediate goods. I present empirical results based on a new industry-level data set that covers more than 65 percent of the worlds manufacturing output and most of the worlds R&D expenditures between 1970 and 1991. The analysis considers productivity effects from R&D in the domestic industry itself, from R&D in other domestic industries, as well as in the same and other foreign industries. I estimate strong productivity effects both from own R&D spending and R&D conducted elsewhere. The contribution of R&D in the industry itself is about 50 percent in this sample. Domestic R&D in other industries is the source of 30 percent of the productivity increases, and the remaining 20 percent are due to R&D expenditures in foreign industries.  相似文献   

2.
A theoretical and widely-quoted finding is that levels of cooperative R&D exceed noncooperative R&D levels when technological spillovers are relatively large, while the opposite holds for relatively small technological spillovers. We qualify this result by showing that for relatively small technological spillovers the comparison is not driven by the extent of technological spillover, but by the increase in technological spillover due to cooperation in R&D. In particular, an agreement to cooperate in R&D always raises R&D efforts if the post-cooperative technological spillover rate is high enough.  相似文献   

3.
Schumpeterian endogenous growth theory and evolutionary economics   总被引:4,自引:0,他引:4  
In this paper, we aim to discuss whether Schumpeterian models of endogenous growth can accommodate Schumpeters vision of development through creative destruction. Taking a methodological approach, our focus is on individual decision-making, technology, general equilibrium and welfare, and steady state dynamics as the fundamental principles underlying endogenous growth theory. In particular, the Aghion-Howitt model of Schumpeterian growth in various extended versions is analyzed in the light of Schumpeters work. Therefore, we also try to root Schumpeters work in historical context. We find endogenous growth theory far from carrying Schumpeters idea of an evolutionary approach to change and development. Rather the emergence of numerous models of an evolutionary type can be observed to provide for the formal structure appropriate to keeping Schumpeters legacy alive.JEL Classification: B1, B2, B4, O3, O4Corespondence to: Thomas Kuhn  相似文献   

4.
An Incremental Incentive Scheme (IIS) encourages some activity by rewarding an agent for overachieving a base level determined by past performance but not penalizing underachievement. We examine an IIS R&D subsidy in a dynamic model due to Grossman and Shapiro (1986). We show that the firm's optimal R&D path either cycles around the no-subsidy path or follows a ratchet pattern of small increases in R&D relative to the no-subsidy path. A simple condition determines which type of behavior occurs. Furthermore, we show that an IIS may be an inefficient method of encouraging R&D compared to a flat-rate subsidy.We wish to thank Gene Grossman and two referees for helpful comments. All remaining errors are our own.  相似文献   

5.
There is as yet no consensus on the most appropriate way to incorporate the degradation of environmental capital into national income accounting procedure. Net product is currently derived by deducting from gross product the depreciation of man-made capital only. Deducting depreciation of natural capital in a similar manner will give a figure for true net product that provides a better indicator of that level of current income which is sustainable into the future. The user cost and net price methods of calculating the value of natural resource depreciation are analysed and assessed. On the basis of this assessment, the net price method is then used to adjust the national accounts of Zimbabwe for depletion of forests, soils and mineral resources, for the period 1980 to 1989. The results suggest that economic depreciation of natural resources represents approximately 2% of annual GDP, although this is regarded as a significant underestimate. The implications for integrating natural resource depletion into policy making, within the current national political climate, are then addressed.  相似文献   

6.
We propose a model of the international technology gap that focuses on two sources of self-reinforcing mechanisms in the industrial competition: (i) a positive feedback that runs from innovations to profits to R & D expenditures, and (ii) learning effects in R & D and in production. We find that, if the cost of labor is lower in the late-starter country, several dynamic paths are possible, including one in which the late-starter catches up and then reverses the technology gap. When international diffusion of technology is introduced, the system has a bifurcation structure: if technology diffusion is relatively slow, there are two steady-state levels of the technology gap, one in favor of each country; if diffusion is fast, there is a unique stable equilibrium gap in favor of the country that has an exogenous (Ricardian) cost advantage.  相似文献   

7.
Ohne ZusammenfassungSymbole N Beschäftigung - F (N) Produktionsfunktion (F>0,F <0) - Substitutionselastizität - Arbeitsangebot=Arbeitskräftepotential - Reallohnsatz - w Nominallohnsatz - p Preisniveau - T Zykluslänge - s Kosten der Erhöhung vonv (gemessen in Einheiten der Lohnsumme/Periode) - I Investition (konstant) - sp (sw) Sparquote aus Profiten (Löhnen) - Nutzendiskontrate - q Schattenpreis der Erhöhung von  相似文献   

8.
Najib M. Harabi 《Empirica》1992,19(2):221-244
The purpose of this paper is to analyse both theoretically and empirically those factors which underlay the—empirically observable—inter-industry differences in technical progress. At the theoretical level economists agree more and more that technical progress can be explained at the industry level ey the following three factors: 1. the technological opportunities, 2. the appropriability conditions, meaning the ability to capture and protect the results of technical innovations, and 3. the market demand conditions.The basic theoretical model was tested with the help of two sets of Swiss data. One set was made available by Swiss Federal Office of Statistics and consists of quantitative information on R&D expenditures, R&D personnel, total employment and sales figures for 124 (4-digit SIC) industries for the year 1986. The second set was derived from a survey I carried out in the summer of 1988. 940 industry experts were approached: 358 of them, or 38 percent, covering 127 industries, completed the questionnaire. The items on the questionnaire were related to the two supply-side determinants of technical progress—items 1. and 2. above. For the empirical specification of the theoretical model, technical progress (as the dependent variable) was measured by three indicators: an output indicator, representing the introduction rate of innovations since 1970; two input indicators, share of R&D expenditures in sales and share of R&D personnel in total employment. All data were aggregated at the industry level (4-digit SIC). Three equations were estimated individually, using the OLS, GLS and Tobit methods.  相似文献   

9.
One of the most important and most contentious issues for regulation and competition raised by the 1996 Telecommunications Act is when to authorize the regional Bell companies to offer long-distance services. The Department of Justice (DOJ) adopted a standard requiring that a Bells local market must first be irreversibly open to competition. This paper analyzes the competitive benefits and costs of authorizing Bell entry, explains the DOJs standard, and argues that the incentives created by this standard will help achieve the Acts competitive goals more efficiently and rapidly than other standards, ultimately reducing the need for intrusive regulation.  相似文献   

10.
This paper deals with measuring total factor productivity (TFP) growth of financial institutions incorporating different types of deregulatory measures. TFP growth is decomposed into external, scale, and markup components. The external component is further dissected into deregulation and technical change components. The TFP growth relationship is included as an additional equation in estimating the cost system. The empirical model uses panel data on Spanish banks (savings and commercial banks). We find that deregulations contributed positively to TFP growth for both savings and commercial banks. Furthermore, domestic (European) deregulations had a greater effect on TFP growth of savings (commercial) banks. JEL Classification: D24, D40, G21Lozano-Vivas acknowledges financial support from the Ministerio de Ciencia y Tecnología and FEDER grant n° BEC2002-02852. The authors thank an anonymous referee, the editor of the JRE and seminar participants at the XI International Tor Vergata Conference on Banking and Finance: Monetary Integration, Markets and Regulation (Rome, Italy) and at the Asian Pacific Productivity and Efficiency Conference (Taipei, Taiwan) for numerous suggestions. A previous version of this paper was distributed as working paper E2004/24, CentrA.  相似文献   

11.
This paper sets out some findings of a research project carried out in private unaided schools in low-income areas of Hyderabad, India. The part of the research project documented here was designed to examine the question: Is the regulatory regime conducive to entrepreneurial action and market discovery with particular reference to the low-income schools in Hyderabad. This paper is narrowly focused, setting out the results of pattern matching empirical data with the Austrian economic concepts of entrepreneurship, rivalry, and market discovery. The research discovered that two regulatory regimes exist, one that is set out on paper in the Education Acts and associated rules, and another that operates in practice. That is, there is a combination of regulations on paper and regulations existing in an extra-legal sector. Generally it was found that the regulations in practice are consistent with market principles. Conversely the regulations set out on paper are not conducive to entrepreneurial innovation and market discovery. Recommendations for potential policy initiatives include the possibility of legitimising the extra-legal sector by introducing self-regulation possibly via self-evaluation systems for the private unaided schools.  相似文献   

12.
Summary In this paper we consider Anonymous Sequential Games with Aggregate Uncertainty. We prove existence of equilibrium when there is a general state space representing aggregate uncertainty. When the economy is stationary and the underlying process governing aggregate uncertainty Markov, we provide Markov representations of the equilibria.Table of notation Agents' characteristics space ( ) - A Action space of each agent (aA) - Y Y = x A - Aggregate distribution on agents' characteristics - (X) Space of probability measures onX - C(X) Space of continuous functions onX - X Family of Borel sets ofX - State space of aggregate uncertainty ( ) - x t=1 aggregate uncertainty for the infinite game - = (1,2,...,t,...) - t t (1, 2,..., t) - L1(t,C ×A),v t Normed space of measurable functions from t toC( x A) - 8o(t,( x A)) Space of measurable functions from tto( x A) - Xt Xt= x s=1 t X - X t Borel field onX t - v Distribution on - vt Marginal distribution of v on t - v(t)((¦t)) Conditional distribution on given t - vt(s)(vts)) Conditional distribution on t given s (wheres) - t Periodt distributional strategy - Distributional strategy for all periods =(1,2,...,t,...) - t Transition process for agents' types - ( t,t,y)(P t+1(, t , t ,y)) Transition function associated with t - u t Utility function - V t (, a, , t) Value function for each collection (, a, , t ) - W t (, , t ) Value function given optimal action a - C() Consistency correspondence. Distributions consistent with and characteristics transition functions - B() Best response correspondence (which also satisfy consistency) - E Set of equilibrium distributional strategies - x t=1 ( t , (x A)) - S Expanded state space for Markov construction - (, a, ) Value function for Markov construction - P( t * , t y)(P(, t * , t , y )) Invariant characteristics transition function for Markov game We wish to acknowledge very helpful conversations with C. d'Aspremont, B. Lipman, A. McLennan and J-F. Mertens. The financial support of the SSHRCC and the ARC at Queen's University is gratefully acknowledged. This paper was begun while the first author visited CORE. The financial support of CORE and the excellent research environment is gratefully acknowledged. The usual disclaimer applies.  相似文献   

13.
Summary. This paper explores an old solution for bankruptcy problems, described by Ibn Ezra in the XII century. Particularly, we introduce a new way of extending the Ibn Ezras proposal, the Generalized Ibn Ezra solution, by imposing that the general distribution principle from which it is inspired remains fixed. In this context, we follow the interpretation of bankruptcy problems in terms of TU games given in ONeill (1982), and propose the analysis of the Transition Game associated to bankruptcy problems to provide a characterization for the Generalized Ibn Ezra solution.Received: 14 October 2003, Revised: 26 May 2004, JEL Classification Numbers: C71, D63, D71. Correspondence to: José Alcalde: alasur@merlin.fae.ua.esWe are grateful to Carmen Herrero, Juan de Dios Moreno, William Thomson and an anonymous referee for helpful comments. Authors work is partially supported by the Institut Valenciá dInvestigacions Económiques. Alcalde and Silva acknowledge support by FEDER and the Spanish Ministerio de Educación y Cultura under project BEC 2001-0535. Marco acknowledges support by the Fundación Séneca, and the Spanish Ministerio de Educación y Cultura under projects SEC2000-0838 and BEC 2001-0781.  相似文献   

14.
In recent years considerable attention has been paid to the notion of market creation for the conservation of environmental assets. Market creation establishes a market in the external benefit or cost in question (e.g. biodiversity or pollution reduction) and leaves the relevant parties to adjust their behaviour accordingly. While most attention has been paid to market creation through tradable permits and taxes (the polluter-pays), it is less easy to secure a perspective on beneficiary-pays initiatives. Both polluter-pays and beneficiary-pays initiatives are examples of modified Coaseian bargains in which governments intervene in the bargains to lower transactions costs, establish property rights, deal with public goods issues, or act on behalf of disadvantaged groups. This paper reviews four major initiatives in this respect - debt-for-nature swaps, bioprospecting and the Global Environment Facility at the global level, and the Costa Rican Forest Law at the local level. It finds that while there is much to applaud in initiatives in these new markets, serious questions remain about the modest flows of funds associated with such global bargains, and the extent to which they secure environmental improvements relative to the baseline of business-as-usual.JEL Classification: D49, D62, H41, O19, Q57, Q2I am indebted to members of the Wildlife Conservation Research Unit at Oxford University and to David Simpson of Resources for the Future and University College London for valuable comments on an earlier version of this paper. Any remaining mistakes are entirely my responsibility.  相似文献   

15.
The groundzero premise (so to speak) of the biological sciences is that survival and reproduction is the basic, continuing, inescapable problem for all living organisms; life is at bottom a survival enterprise. It follows that survival is the paradigmatic problem for human societies as well; it is a prerequisite for any other, more exalted objectives. Although the term adaptation is also familiar to social scientists, until recently it has been used only selectively, and often very imprecisely. Here a more rigorous and systematic approach to the concept of adaptation is proposed in terms of basic needs. The concept of basic human needs has a venerable history – tracing back at least to Plato and Aristotle. Yet the development of a formal theory of basic needs has lagged far behind. The reason is that the concept of objective, measurable needs is inconsistent with the theoretical assumptions that have dominated economic and social theory for most of this century, namely, valuerelativism and cultural determinism. Nevertheless, there have been a number of efforts over the past 30 years to develop more universalistic criteria for basic needs, both for use in monitoring social wellbeing (social indicators) and for public policy formulation. Here I will advance a strictly biological approach to perationalizing the concept of basic needs. It is argued that much of our economic and social life (and the motivations behind our revealed preferences and subjective utility assessments), not to mention the actions of modern governments, are either directly or indirectly related to the meeting of our basic survival needs. Furthermore, these needs can be specified to a first approximation and supported empirically to varying degrees, with the obvious caveat that there are major individual and contextual variations in their application. Equally important, complex human societies generate an array of instrumental needs which, as the term implies, serve as intermediaries between our primary needs and the specific economic, cultural and political contexts within which these needs must be satisfied. An explicit framework of Survival Indicators, including a profile of Personal Fitness and an aggregate index of Population Fitness, is briefly elucidated. Finally, it is suggested that a basic needs paradigm could provide an analytical tool (a biologic) for examining more closely the relationship between our social, economic and political behaviors and institutions and their survival consequences, as well as providing a predictive tool of some value.  相似文献   

16.
Various technological innovations make it profitable—given regulated service prices—for large business customers of local telephone companies to invest in private equipment and reduce their reliance on the public telephone network. Such bypass possibilities reduce demands and increase demand elasticities for regulated business services. The politics of state telephone regulation motivate two specifications of regulatory objectives—specifications designed to reveal positive implications of bypass for regulated prices. One views the regulator as practicing so-called residual pricing, and a generalization assumes that the regulator balances the interests of competing pressure groups. Implications for interpretation of political rhetoric and for future modeling are discussed.  相似文献   

17.
Several evolutionary mechanisms have been identified in the literature that would generate altruism in humans. The most powerful (except for kin selection) and most controversial is group selection, as recently analyzed by Sober & D.S. Wilson. I do not take a stand on the issue of the existence of group selection. Instead, I examine the level of human altruism that could exist if group selection were an engine of human evolution. For the Sober & Wilson mechanism to work, groups practicing altruism must grow faster than other groups. I call altruistic behavior that would lead to faster growth efficient altruism. This often consists of cooperation in a prisoner's dilemma. ltruistic acts such as helping a temporarily hungry or injured person would qualify as efficient altruism. Efficient altruism would also require monitoring recipients to avoid shirking. Utilitarianism would be an ethical system consistent with efficient altruism, but Marxism or the Rawlsian system would not. Discussions of efficient altruism also help understand intuitions about fairness. We perceive those behaviors as fair that are consistent with efficient altruism. It is important to understand that, even if humans are selected to be altruistic, the forms of altruism that might exist must be carefully considered and ircumscribed.  相似文献   

18.
Summary. We ask whether communication can directly substitute for memory in dynastic repeated games in which short lived individuals care about the utility of their offspring who replace them in an infinitely repeated game. Each individual is unable to observe what happens before his entry in the game. Past information is therefore conveyed from one cohort to the next by means of communication.When communication is costless and messages are sent simultaneously, communication mechanisms or protocols exist that sustain the same set of equilibrium payoffs as in the standard repeated game. When communication is costless but sequential, the incentives to whitewash the unobservable past history of play become pervasive. These incentives to whitewash can only be countered if some player serves as a neutral historian who verifies the truthfulness of others reports while remaining indifferent in the process. By contrast, when communication is sequential and (lexicographically) costly, all protocols admit only equilibria that sustain stage Nash equilibrium payoffs.We also analyze a centralized communication protocol in which history leaves a footprint that can only hidden by the current cohort by a unanimous coverup. We show that in this case the set of payoffs that are sustainable in equilibrium coincides with the weakly renegotiation proof payoffs of the standard repeated game.Received: 30 September 2002, Revised: 5 August 2003, JEL Classification Numbers: C72, C73, D82.We wish to thank an Associate Editor and Dino Gerardi as well as seminar participants at Arizona State, Columbia, Duke, Georgetown, Indiana, Montreal, Princeton, Rochester, Vanderbilt, VPI, the 2001 NSF/NBER Decentralization Conference, the Summer 2001 North American Econometric Society Meetings, and the Midwest Theory Conference, 2000, for useful comments and suggestions. All errors are our own.  相似文献   

19.
The paper relates John. R. Commons view on the roleof human design in institutional evolution to the views thathave been advanced on this matter by F. A. Hayek, in German ordo-liberalism,and in constitutional political economy. It is argued that Commonsconcept of purposeful selection points in the direction ofa theoretical perspective that consistently integrates the notionsof institutional evolution and constitutional design.  相似文献   

20.
Summary. We seek to explain the economic volatility of the last 6 years, in particular the rapid expansion and contraction of the knowledge sectors. Our hypothesis is that these sectors amplify the business cycle due to their increasing returns to scale, growing faster than others in an upswing and contracting faster in a downswing. To test this hypothesis we postulate a general equilibrium model with two sectors: one with increasing returns that are external to the firm and endogenously determined - the knowledge sector - and the other with constant returns to scale. We introduce a new measure of volatility of output, a real beta, and derive a resolving equation, from which we prove that the increasing return sectors exhibit more volatility then other sectors. We validate the main results on US macro economic data of real GDP by industry (2-3 digits SIC codes) of the 1977-2001 period, and provide policy conclusions.Received: 18 March 2002, Revised: 16 February 2004, JEL Classification Numbers: D5, D58, E10, L50, L52, O38, O51.Correspondence to: Graciela Chichilnisky  相似文献   

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