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101.
This paper investigates the link between trade and environment by exploring the effects of green tariffs on innovation, location of production and the environment. It shows that tariffs levied on polluting goods could result in less world pollution than global harmonization of environmental standards by inducing more pollution-abatement R&D effort and generating lower unit emissions from production. Specifically, green tariffs reduce pollution by (1) shifting production to the region where environmental standards are respected, (2) inducing the firm in the clean country to engage in more abatement R&D by granting it a higher market power/share in its home market, (3) instigating green R&D investment by deterring delocation. When these outweigh the R&D-creating effect of environmental harmonization in the dirty country, green tariffs bring about a cleaner environment. 相似文献
102.
In a general auction model in which bidders’ signals are affiliated, we characterize the unique separating equilibrium in which the seller can use reserve prices to credibly signal her private information. When the buyers’ signals are independent, the optimal reserve price is shown to be increasing in the number of bidders under certain conditions. We also demonstrate that the probability that the item is sold at the reserve price can increase as the number of bidders increases, which indicates a more central role for reserve prices than perceived in the standard auction models. 相似文献
103.
R&D、R&D溢出、内生增长和内生收敛 总被引:1,自引:0,他引:1
根据强调知识与技术创新、知识与技术溢出重要性的当代内生增长理论,本文建立了一个将R&D和R&D溢出与资本积累之间、R&D和R&D溢出与总产出增长之间直接关联起来的动态模型。面板数据协整检验实证分析结果表明R&D和R&D溢出与资本积累之间、R&D和R&D溢出与总产出增长之间分别存在显著的正面长期协整关联。进一步的分析表明,R&D与资本积累之间、R&D与总产出增长之间分别存在显著的长期双向格兰杰因果关系。由此观知,R&D乃长期经济增长源泉之所在。另一方面,尽管资本积累或总产出增长并不格兰杰导致R&D溢出,证据表明R&D溢出格兰杰导致资本积累和总产出增长。这种由R&D溢出到资本积累和总产出增长的单向格兰杰因果关系意味着尽管知识与技术的跨国传播并非必然发生。其实为世界经济增长的重要动力。 相似文献
104.
Roberto Veneziani 《Journal of Economic Theory》2007,132(1):189-207
This paper analyses exploitation and class formation in a dynamic context. An intertemporal model of a subsistence economy is set up and, among other results, it is proved that, in an interior equilibrium, Differential Ownership of (Scarce) Productive Assets is an inherent feature of a capitalist economy, while exploitation tends to disappear in the long run. Asset inequality is therefore proved to be a normatively secondary (though causally primary) wrong. It is also argued that these results raise several doubts about the possibility of providing robust micro-foundations to Marxian concepts by means of Walrasian general equilibrium models. 相似文献
105.
Educational Attainment and Family Background 总被引:3,自引:0,他引:3
Abstract. This paper analyses the effect of aspects of family background, such as family income and parental education, on the educational attainment of persons born from 1967 to 1972. Family income is measured at different periods of a child's life to separate long-term versus short-term effects of family income on educational choices. We find that permanent income matters to a certain degree, and that family income when the child is 0–6 years old is an important explanatory variable for educational attainment later in a child's life. We find that short-term credit constraints have only a small effect on educational attainment. Long-term factors, such as permanent family income and parental education, are much more important for educational attainment than are short-term credit constraints. Public interventions to alleviate the effects of family background should thus also be targeted at a child's early years, the shaping period for the cognitive and non-cognitive skills important later in life. 相似文献
106.
Seok-ju Cho 《Journal of Economic Theory》2003,113(1):118-130
We prove uniqueness of stationary equilibria in a one-dimensional model of bargaining with quadratic utilities, for an arbitrary common discount factor. For general concave utilities, we prove existence and uniqueness of a “minimal” stationary equilibrium and of a “maximal” stationary equilibrium. We provide an example of multiple stationary equilibria with concave (nonquadratic) utilities. 相似文献
107.
Jason Shachat 《Journal of Economic Theory》2004,114(2):280-309
We describe an experiment based on a simple two-person game designed so that different learning models make different predictions. Econometric analysis of the experimental data reveals clear heterogeneity in the subjects’ learning behavior. But the subjects follow only a few decision rules for basing their play on their information, and these rules have simple cognitive interpretations. There is a unique equilibrium in pure strategies, and many equilibria in mixed strategies. We find that the only equilibrium consistent with the data is one of the mixed strategy equilibria. This equilibrium is shown, surprisingly, to be consistent with Jordan's Bayesian model. 相似文献
108.
Klaus Kultti 《Journal of Economic Theory》2007,137(1):721-728
We establish a link between von Neumann-Morgenstern stable set and the Nash solution in a general n-player utility set. The stable set-solution is defined with respect to a dominance relation: payoff vector u dominates v if one player prefers u even with one period delay. We show that a stable set exists and, if the utility set has a smooth surface, any stable set converges to the Nash bargaining solution when the length of the period goes to zero. 相似文献
109.
Flavio Toxvaerd 《Journal of Economic Theory》2006,129(1):252-272
In most industries, ranging from information systems development to construction, an overwhelming proportion of projects are delayed beyond estimated completion time. This fact constitutes somewhat of a puzzle for existing theory. The present paper studies project delays and optimal contracts under moral hazard in a setting with time to build. Within this setup, project delays are found to be most likely to happen at early stages of development and intimately connected to the degree of commitment of the procurer and the class of contracts that can be enforced. The first-best, optimal spot contracting and optimal long-term contract scenarios are analyzed, as well as commonly encountered additional constraints on the long-term contract. 相似文献
110.
Tiago Neves Sequeira 《Empirical Economics》2007,32(1):41-65
The effect of human capital composition on growth and development has been somewhat neglected in economic literature. However,
evidence has suggested the importance of engineering and technical (high-tech) skills to economic growth, and international
organizations have suggested their shortage in developed countries. Using a standard increasing variety growth model, we propose
various measures of human capital composition that are related with economic growth and development. When compared to data,
the model does well in explaining the rate of growth and the level of development as a function of these measures.
“the British colonies had a better educated population (...). Education was secular with emphasis on pragmatic skills and
yankee ingenuity (...). The 13 British colonies had nine universities in 1776 for 2.5 million people. New Spain, with 5 million,
had only two universities (...) which concentrated on theology and law.” –(Maddison, 2001) 相似文献