我国计划生育保险试点实施情况调查报告

中国计划生育家庭面临着诸多风险,今天我们在考虑建立农村社会保障体系时,应该优先考虑对这一重点人群实行重点突破。以实际调查数据和各试点单位数据,在进行分析计划生育保险的赔付率、各险种的参保比例、保费来源的比例以及赔付率等方面基础上,对计划生育保险的实施情况进行简单评估,并就计划生育保险平稳运行提出若干建议。     

Optimal International Taxation and Growth Rate Convergence: Tax Competition vs. Coordination

Optimal international taxation and its implications for convergence in long run income growth rates are analyzed in the context of an endogenously growing world economy with perfect capital mobility. Under tax competition (i) the residence principle will maximize national welfare; (ii) the optimal long run tax rate on capital incomes from various sources will be zero in all countries; and (iii) long term per capita income growth rates will be equalized across countries. Under tax coordination, (i) becomes irrelevant while (ii) and (iii) will continue to hold. In other words, optimal tax policies are growth-equalizing with and without international policy coordination. This revised version was published online in July 2006 with corrections to the Cover Date.     

Commitment to Competition: An Assessment of Antitrust Agency Budgets since 1970

In these remarks to the Industrial Organization Society, I discuss the adequacy of antitrust enforcement resources in the U.S. Relevant resources are measured by the competition budgets of the Justice Department and the Federal Trade Commission. Since 1970 these have been influenced by the overall economy, its changing structure, and politics, but they have not kept up with the pace of mergers or other measures of the need for antitrust. Thus at present, the resources devoted to antitrust fall well short of what is required for continued vigilance over our growing and changing economy.     

石油套管现状及其可靠性研究方向

在收集、查阅大量国内外有关套管的文献资料的基础上,结合我国生产实际和研究现状,综合分析了国内外在套管设计、生产和现场使用中存在的导致管损坏的原因、主要失效形式等问题。结合我国的套管设计及使用的具体情况,提出了进一步开展套管研究的几个方向。     

Imperfect competition,functional forms,and the size and distribution of research benefits

The effects of functional forms for supply and demand on the size and distribution of the returns to research are examined under a range of forms of competition. Under perfect competition, the choice of functional form is relatively unimportant for the estimation of research benefits. Under imperfect competition, the combination of the choice of functional forms for supply and demand and the nature of the research-induced supply shift can have profound implications for the results. Functional form plays a much more important role than in the competitive model. The most important contrast is between the constant elasticity model and the linear model (along with various cases of a generalized linear model). These findings are illustrated using a combination of analytical results and numerical simulations.     

聚丙烯土工布原料的应用与开发

丙纶土工布是一种新型的岩土工程材料,文章介绍了其主要生产工艺,原料使用及生产现状,并对丙纶土工布原料在品种,性能,生产现状等方面存在的问题提出相应的建议。     

Monopoly Welfare Losses in the Long Run

Irrespective of the merit of any previous approaches to assess the deadweight loss due to monopoly they are all static in character and disregard the long term effects of monopoly power. Taking into account the long run consequences of monopoly power within the framework of the new growth theory yields startling new insights. In contrast to the Schumpeterian view that there is a tradeoff between static inefficiency and dynamic progressiveness monopoly power is shown to entail not only static welfare losses but also to exert an adverse influence on economic growth. Once this is granted the long run welfare loss due to monopoly can be shown to dwarf the static losses so far treated in the economics literature.     

Bioeconomics of some nonhuman and human societies: new institutional economics approach

New institutional economics (NIE) has been very successful in explaining the role of institutions such as the firm, money, and contract law in facilitating production and exchange in human societies. In this paper, I will show that the NIE approach, which so far has been used by economists to analyze institutions and organizations in human society, including the ethnically homogeneous middleman groups, can also be extended to explain the high degree of cooperation and coordination of activities of honeybees, ants, and schooling fish. In addition, the paper emphasize the importance of identity in nonhuman and human societies in eliciting cooperation and in detecting cheaters or fakers. This paper thus contribute to the integration/consilience of economics and biology by providing a more unified view of aspects of the bioeconomics of nonhuman and human societies.     

产业群内局部过度竞争的理论分析与对策

产业群强化了竞争,但是产业群内也出现了局部过度竞争。文章适时地对一般过度竞争概念加以完善,指出过度竞争存在整体与局部之分,并从产业群进入壁垒、产品差异化、社会均衡最优选择的角度出发,分析了产业群内局部过度竞争的形成机理。文章还运用塞洛普圆周模型,论证了产业群内的激烈竞争将会引起企业数目过多、价格上升等局部过度竞争现象。为了解决这些问题,文章从政府角度提出了相应的对策。     

一个关于中国地方保护主义问题的综述

本文界定了地方保护主义的概念,描述了中国的地方保护主义出现、演变的过程及现阶段的特征,分析了其导致的后果,并梳理了不同专家学者对该问题的不同的观点,认为它的出现是中国转轨阶段的产物,有一个由弱至强再到逐渐消失的过程,主要是地方政府间财政竞争与政治竞争引致了它的出现.