Consistent Probabilistic Social Choice

Two fundamental axioms in social choice theory are consistency with respect to a variable electorate and consistency with respect to components of similar alternatives. In the context of traditional non‐probabilistic social choice, these axioms are incompatible with each other. We show that in the context of probabilistic social choice, these axioms uniquely characterize a function proposed by Fishburn (1984). Fishburn's function returns so‐called maximal lotteries, that is, lotteries that correspond to optimal mixed strategies in the symmetric zero‐sum game induced by the pairwise majority margins. Maximal lotteries are guaranteed to exist due to von Neumann's Minimax Theorem, are almost always unique, and can be efficiently computed using linear programming.     

转型加速时期西部少数民族地区结构性贫困研究述论

文章认为西部少数民族地区在社会转型加快时期的贫困问题基本上是结构性贫困,并对这种结构性贫困问题的具体特征及其产生的社会危害进行纬度结构分析,最后系统地从建构现代国家治理体系和治理现代化的背景下提出了治理路径。     

An Exploration of the Need to Build an Evaluation Index System for Economic and Social Development in the Southwest’s Ethnic Region

An evaluation index system for eco￣nomic and social development is guiding the trends and actions of economic development in different countries or regions. However,the evaluation index system should b...     

Strategic Learning and the Topology of Social Networks

We consider a group of strategic agents who must each repeatedly take one of two possible actions. They learn which of the two actions is preferable from initial private signals and by observing the actions of their neighbors in a social network. We show that the question of whether or not the agents learn efficiently depends on the topology of the social network. In particular, we identify a geometric “egalitarianism” condition on the social network that guarantees learning in infinite networks, or learning with high probability in large finite networks, in any equilibrium. We also give examples of nonegalitarian networks with equilibria in which learning fails.     

Supply Chain Consequences of Subsidies for Corporate Social Responsibility

The use of government incentives tied to market prices as means of boosting corporate social responsibility (CSR) has expanded notably in recent decades. Enhanced business tax deductions for charitable donations and credits for conservation easements are notable cases. While providing incentives for socially desirable behavior to achieve legislative goals has intuitive appeal, the broader economic consequences are not always fully understood. In this study, we examine such wider consequences for supply chains when subsidies for CSR are offered. One effect we identify is that since incentives are typically tied to market value, firms have not only an added incentive to achieve societal objectives (say by donating inventory) but also an incentive to raise output (retail) market prices. A second consequence is that since firms forgo potential revenues by engaging in socially desired behavior, they become increasingly sensitive to supplier pricing; in an uncoordinated supply chain this leads to input (wholesale) price concessions. Among other things, the results underscore that incentives put in place to meet broader societal objectives also have notable ramifications for suppliers, retailers, and consumers in primary markets.     

中间品贸易视角下的国际研发合作行为研究

随着全球化程度加深,与国外企业进行研发合作逐步成为国内企业参与创新驱动发展战略的重要途径.从中间品贸易视角出发,通过构建谈判博弈模型,分析探讨影响产业链下游企业进行国际研发合作内生性选择的因素.研究发现,只有在研发溢出效应比较小的时候,产业链下游企业才会选择进行国际研发合作.但如果研发溢出效应过小,下游企业的国际研发合作行为会导致本国社会福利水平下降.进一步研究发现,上游市场垄断势力增强以及最终品贸易成本下降均会对产业链下游企业的国际研发合作产生促进作用.     

中国台湾身心障碍者社会保障政策变迁及述评

中国台湾地区身心障碍者保障制度是经过长期的历史发展和社会变迁后不断完善的产物,且在不同的历史时期呈现出不同的特点。历经多次调整与革新,中国台湾地区身心障碍者保障已经形成了自己独特的体系,在制度层面具有支持服务与照顾协助的架构相对完备、台北市与各市县伙伴关系和矛盾关系并存两大特点。数十年来,中国台湾地区的身心障碍者权益保障工作已经取得了一定的实践成果,但是其中也存在残补式福利、本土化与西化矛盾等诸多问题。中国台湾地区身心障碍者保障制度仍然面临困难与挑战。从中国台湾地区身心障碍者保障政策的发展历程以及现有体制中,中国大陆地区可以借鉴宝贵经验和可行政策,从而更好地建立和健全与中国现阶段经济发展水平相适应的具有中国特色的残疾人保障体系。     

政策认知、社会资本与农民工求职交易费用

采用2014年农民工发展调查数据,运用对数线性回归模型、零膨胀负二项回归模型分析了政策认知、社会资本对农民工求职交易费用的影响。实证结果显示,政策认知和社会资本并非完全降低交易费用。不了解户籍制度的影响降低了求职交易费用,但了解《劳动合同法》和最低工资标准显著提高了签订合同所用时间和次数。心情不好向公职人员倾诉或休闲时与公职人员在一起降低签合同所用时间和次数,但向公职人员求助会提高找工作时间和花费资金。     

制度与非制度因素对农民工落户城镇意愿的影响

农民工能否落户城镇对我国的新型城镇化建设有重大的现实影响。利用2013年全国流动人口动态监测数据,从制度性因素和非制度性因素两方面对农民工的落户城镇意愿进行了探讨。实证研究发现：社会保险状况及学龄子女是否在本地就学会显著影响农民工的落户意愿,表明制度性因素的重要;从社会网络视角来看,基于传统的先赋性场域网络如亲属网对农民工的落户意愿无显著影响,而基于现代社会的自致性场域网络如朋友网、行政组织网、工作同事网则显著提高了农民工落户城镇的意愿。