Reduced Form Auctions Revisited

This note uses the Theorem of the Alternative to prove new results on the implementability of general, asymmetric auctions, and to provide simpler proofs of known results for symmetric auctions. The tradeoff is that type spaces are taken to be finite.     

控股股东、实际控制权与小股东权益保护

股权集中型公司是现代公司的主流组织形态之一,其代理成本主要产生于控股股东与小股东之间存在的利益冲突.通过发行多种类股票、交叉持股和金字塔式控股等方式,控股股东能够获取比与其股权份额相对应的名义控制权更大的实际控制权,因而更容易发生以侵害小股东权益作代价追求控制权私下收益的道德风险行为,致使代理成本高昂.声誉机制和法律手段能够迫使控股股东收敛侵占行为,且法律手段较声誉机制更为有效.在中国,声誉机制对控股股东基本不起作用,保护小股东权益的最为有效的措施是完善相关立法并加大执法力度.     

论成渝经济统筹发展

Chengdu and Chongqing are two megalopolises with the synthesized economic strength and the strongest urban competitiveness in the entire western region, which have very important positions in the development of western China. Through horizontal contrast of social economic developing level of the two cities, the two cities‘ economic foundation of unitary development is analyzed from complementary and integrative relationship. Then the policies and measures of economic unitary development of two cities is put forward.     

基于时间约束的多源多品种随机配送系统模型

在基于时间竞争的随机需求环境下,配送系统设计除了使系统总费用的期望值最小外,还要考虑系统稳定性和服务水平等方面的要求。在说明了建模的假设条件后,建立了考虑随机需求和时间约束的多源配送系统随机模型。通过等价变换,将随机模型转化为确定性等价问题,从而方便了问题的求解。     

Declining Discount Rates: The Long and the Short of it

The last few years have witnessed important advances in our understanding of time preference and social discounting. In particular, several rationales for the use of time-varying social discount rates have emerged. These rationales range from the ad hoc to the formal, with some founded solely in economic theory while others reflect principles of intergenerational equity. While these advances are to be applauded, the practitioner is left with a confusing array of rationales and the sense that almost any discount rate can be justified. This paper draws together these different strands and provides a critical review of past and present contributions to this literature. In addition to this we highlight some of the problems with employing DDRs in the decision-making process, the most pressing of which may be time inconsistency. We clarify their practical implications, and potential pitfalls, of the more credible rationales and argue that some approaches popular in environmental economics literature are ill-conceived. Finally, we illustrate the impact of different approaches by examining global warming and nuclear power investment. This includes an application and extension of Newell and Pizer [‘Discounting the benefits of climate change mitigation : how much do uncertain rates increase valuations?’ Journal of Environmental Economics and Management 46 (2003) 52] to UK interest rate data.     

论第三方物流的经济性

第三方物流是一种专业化的物流组织，具有很强的经济性。随着第三方物流的发展，它的经济性会发挥的更加充分。第三方物流的经济性，主要包括规模经济性，价值创新性和外部经济性。规模经济性是它的基本特征，价值创新性是它的功能特性，而外部经济性则是它的社会效益的表现。全面理解第三方物流的经济性，有利于企业进行科学的物流决策，有利于政府制定有效的物流发展战略。     

中国金融制度变革的地区差异研究

由于经济增长与金融成长有极强的内生关联，中国东部与中西部经济发展的地带性差异决定了金融体系的分布格局和发展层次。从面上看，随着发达地区经济的发展和金融的深化，优势要素会由区域内向区域外扩散和辐射，在一定程度上改造落后地区的经济-金融因素，区域金融的发展空间得以扩展，从而逐步形成统一的金融市场。从点上看，民营经济的快速发展和民间金融对民营经济的内在性金融支持，决定了民间金融在金融体制变革和金融市场化过程中的重要地位。     

How many voters are needed for paradoxes?

Summary. This paper presents a general procedure for finding profiles with the minimum number of voters required for many important paradoxes. Borda's and Condorcet's classic examples are revisited as well as generalizations. Using Saari's procedure line, we obtain an upper bound for the minimum number of voters needed for a profile for which the Condorcet winner is not strictly top ranked for all weighted positional procedures. Also we give a simple upper bound on the minimum number of voters needed for a set of prescribed voting outcomes. In contrast to situations wherein small numbers of voters are needed, we consider paradoxes requiring arbitrarily large numbers of voters as well as large numbers of alternatives. Finally we indicate connections with statistical rank based tests. Received: April 18, 2001; revised version: May 25, 2001     

湖南省区域开发的空间模式研究

根据湖南省区域开发条件和现状,运用点轴理论,分析湖南省国土综合开发的地域结构及其演化趋势,进而提出全省中长期开发的空间模式,为宏观决策提供依据。即在湘江中下游和洞庭湖区实施网络式开发与点轴式开发相结合的开发模式,在湘中和湘南地区实施点轴开发模式,在湘西地区实施据点式开发模式。     

四川民营企业融资结构的优化

本文主要从四川民营企业的外部视角,即从影响其融资结构形成的政府和金融中介组织的行为优化角度,分析探讨政府与金融机构在四川民营企业扩大融资渠道、调整融资方式和克服融资障碍方面所能提供的支持服务,以及在营造有利于改善四川民营企业融资结构的外部环境方面的努力方向与可行措施。