众筹平台双边市场特性与竞争策略研究

当前,众筹平台逐渐分化为综合型与垂直型众筹平台,其用户规模和交易费率都存在显著差异,需要制定有针对性的竞争策略。根据众筹模式特征,构建了Hotelling竞争模型,分组实证考察了综合型和垂直型众筹平台双边用户交叉网络外部性、支持者自网络外部性和平台定价的综合影响。结果表明,在综合型众筹平台中,支持者规模对支持者投资需求产生了显著正自网络外部性;而在垂直型众筹平台中,支持者规模对发起者筹资需求、发起者规模对支持者投资需求均产生了显著的正交叉网络外部性,且平台定价显著负向影响发起者筹资需求。     

A股市场过度反应的新证据——基于A股和H股估值变化的视角

传统的检验市场过度反应的方法是采用De Bondt和Thaler构造的赢家组合和输家组合,通过检验赢家组合和输家组合的超额收益率来判断市场是否存在过度反应。有别于传统的检验市场过度反应的方法,本文基于我国股票市场上A股和H股估值变化的特殊视角,实证分析了我国A股市场存在的过度反应现象。     

国有企业集团内部资本市场运行效率:基于双重代理关系的分析

本文选取深沪两地140家国有集团附属上市公司与100家非集团国有上市公司2003-2007年的平衡面板数据作为样本,从双重代理关系的视角实证分析了内部资本市场的运行效率。理论分析与经验证据均显示:(1)国有企业集团内部资本市场上的主导代理关系为管理层代理关系,而非控股股东代理关系,即影响国有企业集团内部资本市场效率的代理问题为管理层代理问题,国有控股股东由于缺位并没有将内部资本市场异化为其进行利益侵占的隐蔽渠道;(2)从集团总部层面来讲,内部资本市场能够有效配置资金,但从成员公司的层面来讲,总部与成员公司经理的代理问题使内部资本市场的功能受损。     

我国县乡医疗市场垄断均衡与破除对策研究

中国县乡医疗体制改革改变了原有计划经济体制下医疗卫生服务供给低效率和数量短缺的局面。但是,中国县乡医疗市场正在出现新的、医政联合的垄断格局。中国县乡垄断医疗市场短期与长期均衡形成及持续是各方力量博弈的结果,垄断医疗机构从中获得巨额垄断利润,而农民却支付巨额成本。文章在模型分析结论基础上,提出了建立准入性竞争医疗体系、提升农民的组织和谈判能力、变革政府职能和完善公共卫生政策三大破除县乡医疗市场垄断均衡的对策性思考。     

Agroindustrialization, globalization, and international development: An overview of issues, patterns, and determinants

This paper offers an overview for a special issue on agroindustrialization, globalization, and international development. It sets out a conceptual framework for understanding the links among these three broad phenomena and then discusses emerging issues and evidence concerning the factors conditioning agroindustrialization in developing countries and the subsequent effects on employment, poverty, and the natural environment. We conclude with a research agenda.     

An assessment of market-based approaches to providing ecosystem services on agricultural lands

Market-based approaches are increasingly being advocated as tools for achieving the conservation of ecosystem services. We examine the reasons why markets so far appear to have failed to provide an efficient allocation of many ecosystem services, and identify the conditions under which markets deliver efficient resource allocation. We discuss different forms of market-based approaches to ecosystem services and identify the characteristics of services that make them better suited to one or another of these approaches. We find that lack of low-cost measurability and valuation currently precludes efficient allocation of many ecosystem services through market-based approaches. Still, some forms of market-based approaches hold promise for cost-effectively managing some ecosystem services provided by and to agricultural lands. In many cases some form of well-designed government involvement will be required to seek outcomes that protect the public interest.     

社保基金投资股市对经济增长的影响

本文在一系列假定条件下分析了中央社保基金投资资本市场对经济增长和包括储蓄、收入分配、消费、价格等在内的宏观经济条件的影响.本文认为,总的来说中央社保基金投资包括股市在内的资本市场对经济增长的影响具有很大的不确定性,其影响主要取决于其他诸多相关因素,并在很大程度上取决于心理预期和政策工具的选择.换言之,在其他条件不变的情况下其影响是很有限的,或者说主要呈中性.     

2005年国际金融市场回顾与2006年展望

2005年的国际金融市场走势跌宕起伏,股票市场表现不一,债券市场基本上是区间波动走势,外汇市场美元一枝独秀,石油价格冲高回落而黄金的表现也引人注目。决定市场走势的因素是美国经济表现稳健,欧、日经济相形见绌,同时美国利率持续上升。2006年受房地产市场降温的影响,美国经济可能温和放缓,利率很快见顶,将对金融市场产生重大影响,总体而言风险加大。     

Do alliances promote knowledge flows?

We explore the role of interfirm alliances as a mechanism for sharing technological knowledge. We argue that knowledge flows between alliance partners will be greater than flows between pairs of nonallied firms, and less than flows between units within single firms. Using patent citations as a proxy for knowledge flows, we find results that are consistent with these expectations. We then explore how firm characteristics affect knowledge flows within alliances and find positive effects due to technological, geographic, and business similarities between partners. We use alliance data from MERIT, patent data from the USPTO, and firm data from Compustat.     

Embedded industrial production systems: Lessons from waste management in zinc production

To meet the sustainability challenge private companies must implement corporate strategies and adopt novel technologies. The technical and social embeddedness of industrial production systems, however, complicates these systems' transition towards sustainability. In the paper, mechanisms and conditions are reported for the development and implementation of waste management options in embedded industrial production systems. The focus is on the Dutch zinc production industry, which had to deal with a major waste problem; the generation of jarosite. The industry's options were to increase the jarosite waste storage capacity, to develop a jarosite treatment process or to switch to a zinc-ore of low-iron content whereby no jarosite waste would be generated anymore. Required conditions appeared to be a combination of technological capability and technical embedding and favourable economics. Case study research, however, revealed that adequate stakeholder management is crucial to address social pressure exerted and to obtain external acceptance for any transition strategy. Whilst appropriate, internal technological capabilities are important, effective interactions with and enrolment of various firm-external actors are crucial. In the case of zinc, access to the heterogeneous external actor network was critical for the development of the jarosite treatment solution direction. In conclusion, both the technical, organizational and social embedding of new technologies are crucial for successful implementation.