Asymmetric Choquet random walks and ambiguity aversion or seeking

Asymmetric Choquet random walks are defined, in the form of dynamically consistent random walks allowing for asymmetric conditional capacities. By revisiting Kast and Lapied (Dynamically consistent Choquet random walk and real investments. Document de Travail n. 2010-33, GREQAM, HAL id: halhs-00533826, 2010b) and Kast et al. (Econ Model, 38:495–503, 2014) we show that some findings regarding the effects of ambiguity aversion are preserved in the more general framework, which is of interest in several applications to policy making, risk management, corporate decisions, real option valuation of investment/ disinvestment projects, etc. The effect of ambiguity on the higher moments is investigated, as well, as they have an interpretation in terms of the psychological attitude of a decision-maker towards ambiguity. Finally, some financial applications are provided as an illustration.     

Meaningful learning in weighted voting games: an experiment

In April 2013, all of the major academic publishing houses moved thousands of journal titles to an original hybrid model, under which authors of accepted papers can choose between an expensive open access (OA) track and the traditional track available only to subscribers. This paper argues that authors might now use a publication strategy as a quality signaling device. The imperfect information game between authors and readers presents several types of Perfect Bayesian Equilibria, including a separating equilibrium in which only authors of high-quality papers are driven toward the open access track. The publishing house should choose an open-access publication fee that supports the emergence of the highest return equilibrium. Journal structures will evolve over time according to the journals’ accessibility and quality profiles.     

Resolute majority rules

We investigate resolute voting rules that always rank two alternatives strictly and avoid social indecision. Resolute majority rules differ from the standard majority rule in that whenever both alternatives win the same number of votes, a tie-breaking function is used to determine the outcome. We provide axiomatic characterizations of resolute majority rules or resolute majority rules with a quorum. Resoluteness axiom is used in all these results. The other axioms are weaker than those considered in the characterization of the majority rule by May (1952 Econometrica, 20:680–684). In particular, instead of May’s positive responsiveness, we consider a much weaker monotonicity axiom.     

A simple framework for the axiomatization of exponential and quasi-hyperbolic discounting

The main goal of this paper is to investigate which normative requirements, or axioms, lead to exponential and quasi-hyperbolic forms of discounting. Exponential discounting has a well-established axiomatic foundation originally developed by Koopmans (Econometrica 28(2):287–309, 1960, 1972) and Koopmans et al. (Econometrica 32(1/2):82–100, 1964) with subsequent contributions by several other authors, including Bleichrodt et al. (J Math Psychol 52(6):341–347, 2008). The papers by Hayashi (J Econ Theory 112(2):343–352, 2003) and Olea and Strzalecki (Q J Econ 129(3):1449–1499, 2014) axiomatize quasi-hyperbolic discounting. The main contribution of this paper is to provide an alternative foundation for exponential and quasi-hyperbolic discounting, with simple, transparent axioms and relatively straightforward proofs. Using techniques by Fishburn (The foundations of expected utility. Reidel Publishing Co, Dordrecht, 1982) and Harvey (Manag Sci 32(9):1123–1139, 1986), we show that Anscombe and Aumann’s (Ann Math Stat 34(1):199–205, 1963) version of Subjective Expected Utility theory can be readily adapted to axiomatize the aforementioned types of discounting, in both finite and infinite horizon settings.     

Dynamic awareness and zero probability beliefs

We study behavioral patterns of insurance demand for low-probability large-loss events (catastrophic losses). Individual patterns of belief formation and risk attitude that were suggested in the behavioral decisions literature emerge robustly in the current set of insurance choices. However, social comparison effects are less robust. We do not find any evidence for peer effects (through social-loss aversion or imitation) on insurance take-up. In contrast, we find support for the prediction that people underweight others’ relevant information in their own decision making.     

我国上市公司信息披露机制实证检验——基于投资者保护的视角

基于投资者保护的上市公司信息披露机制的实证检验表明,公司的信息质量以及信息披露的及时性能够发挥投资者的保护功能;仅通过提高公司信息披露的频率还远远不够,关键是提高公司信息披露质量;公允价值计量基础没有成为投资者保护的有效促进因素,反而可能成为公司进行盈余管理的手段.对此,应加强我国证券市场的信息监管,制定高质量的会计准则,实现上市公司信息披露制度由静态监管向动态监管的转变.     

文化自觉:沈从文乡土小说的视角和心态——以《边城》的再解读为例

沈从文的小说创作在20世纪30年代初期进入一种自觉的新的尝试。他试图以文学改造社会、重建民族道德,希望通过表现优美人性来濡化读者心田,从而完成“人性的治疗者”的使命。在写作取向上,沈从文并非向传统汲取力量,而是向边地寻求中华民族精神的再生力量,有一种“礼失而求诸野”的意图。     

大学生内部称谓语使用情况调查——以湖南理工学院为例

大学生内部称谓形式丰富,来源广泛,是校园文化、强势媒体、地域文化、传统文化、外来文化共同作用的结果．大学生内部称谓的选择存在群体差异,与文理科、性别、年级等有一定的相关关系。称谓选择的心理动机可以分为无所谓、从众、讲求理据、创新求异等类型。     

中国国际经济关系研究的一般特征和发展趋势（之二）：学者、研究机构、地区的学术影响力及研究热点——基于2000-2007年CSSCI期刊论文数据的分析

本文研究了中国国际经济关系研究领域中的学者、研究机构和地区的学术影响力,并分析了该领域的研究热点和研究趋势.本文认为我国国际经济关系研究仍然处于初步成长之中,研究队伍有待进一步培养和扩大,但是研究成果和学术影响力已有显著的提高,高校和社科院系统是研究的主力,北京是研究的中心.     

浅谈阳泉市体育产业发展现状及对策

近年来,阳泉市体育产业发展迅速,体育健身娱乐业社会需求增大,体育彩票已成其中的支柱产业,体育竞赛表演市场活跃。但仍存在政策体系、市场体系不健全和不成熟,体育产业市场管理体系不完善,群众体育消费未能有效开发等问题。为此,应采取加强体育产业战略规划的制定,加快体育产业政策和法规的制定,重视社区体育的发展,培育体育消费市场等措施。