基于未确知测度理论的多科性医院医疗大数据治理能力成熟度评价

为实现对多科性医院大数据治理水平的分析和评估,在数据管理成熟度模型和能力成熟度模型基础上,构建多科性医院大数据治理能力成熟度评价模型。将医院大数据治理能力成熟度分为初始级、程序级、规范级、管理级和优化级五个等级,基于医院内部大数据治理特征,建立包括三级指标的成熟度评价指标体系。然后,分别用客观赋权法及组合赋权法确定各指标权重,并结合未确知测度理论和评价方法,量化评估两个三甲多科性医院大数据治理能力的成熟度。结果表明,两种赋权方法下两家医院的大数据治理能力水平均处于规范级,与两家医院大数据治理的实际情况相吻合。未确知测度理论与信息熵权相结合,可以平衡指标测量主观性和评价结果稳定性,建立的模型能为多科性医院大数据治理提供具有参考价值的决策信息。     

Recovering Hicksian Consumer Surplus within a Collective Model: Hausman's Method for the Household

The purpose of this paper is to describe the implications of the collective model of household behavior for the methods used to estimate the economic value of non-marketed environmental resources. After demonstrating how the separability restrictions inherent in the collective model allow individual preference and household income allocation choices to be distinguished, the paper demonstrates how the framework can be used to recover Hicksian consumer surplus. An algebraic example is used to illustrate how the framework can be used in valuing environmental resources.     

An Empirical Investigation into the Excessive-Choice Effect

Recent marketing and psychological studies have shown that more choice does not always benefit consumers. This excessive-choice effect (ECE) is examined empirically using food items in four experiments. The first experiment investigates whether people would voluntarily reduce their choice-set size. The second seeks to replicate previous experimental results. The third and fourth experiments employ nonhypothetical Becker-DeGroot-Marschak (BDM) soda auctions and hypothetical ground beef choice experiments to further detect the prevalence of the ECE in alternative settings and explore the role of personality in decision tasks. Results suggest the ECE exists, but is less prevalent than previous studies suggest.     

Disentangling and quantifying market participant volatility contributions

Thanks to the access to labeled orders on the CAC 40 index future provided by Euronext, we are able to quantify market participants contributions to the volatility in the diffusive limit. To achieve this result, we leverage the branching properties of Hawkes point processes. We find that fast intermediaries (e.g. market maker type agents) have a smaller footprint on the volatility than slower, directional agents. The branching structure of Hawkes processes allows us to examine also the degree of endogeneity of each agent behavior, and we find that high-frequency traders are more endogenously driven than other types of agents.     

基于计划行为理论的绿色食品购买行为研究

文章从消费心理学的角度,通过问卷调查的方式,对影响绿色食品购买行为的因素进行了分析;基于计划行为理论,构建了揭示购买行为态度与行为关系的理论假设模型。研究结果显示,消费者对购买绿色食品的态度、主观规范、知觉困难等心理因素对购买绿色食品的意向有重要影响,消费者购买绿色食品的意向对其购买行为具有预测作用。     

组织支持感、组织承诺与员工建言行为：与上司关系的调节作用

回报动机和可能存在的风险是员工是否采取建言行为的重要影响因素。通过对708个员工样本数据的分析,结果显示：组织支持感与组织承诺和员工建言行为之间存在强烈正相关关系;组织承诺在组织支持感影响员工建言行为的关系中起到部分中介的作用;与上司关系交互调节了组织承诺影响员工建言行为的关系。     

虚拟团队信任影响因素实证研究

虚拟团队的信任是人力资源管理与组织行为学领域的一个重要研究课题。相比较对传统面对面团队信任影响因素的大量研究,虚拟团队信任影响因素的研究尤其是实证方面的研究相对较少。本文在对虚拟团队产生背景、虚拟团队信任及其影响因素研究现状分析的基础上,整合个体、团队及组织三大层面,综合分析影响虚拟团队信任的个体特征（正直、能力、善意、信任倾向）、团队特征（领导有效性、目标明确性、任务依赖性、成员异质性）、组织特征（组织制度保障性、组织愿景）三层面十大因素,构建了虚拟团队信任影响因素的研究框架,进而提出相应的研究假设。通过选取实际企业中的虚拟团队为研究样本,验证这些因素对虚拟团队信任的影响。经实证研究发现,正直、能力、善意、信任倾向、领导有效性、目标明确性、任务依赖性、组织制度保障性、组织愿景均正向影响虚拟团队信任,而成员异质性则并非如先前所假设的那样成为虚拟团队信任的影响因素。     

不确定性情况下的居民资产组合行为与中国金融结构变迁

转轨经济的一个显著特点是各项制度不断变化,制度变迁带来的不确定性对居民资产选择行为产生重要影响,进而影响和决定了金融结构的形成与变迁.     

民族旅游地国内游客行为研究及其应用--以广西龙胜各族自治县为例

文章以龙胜国内游客行为研究为例对民族旅游地国内游客行为进行研究，通过大量的文案调研和问卷调研，重点分析了龙胜国内游客的人口统计学特征、需求与消费行为、游客的时空分布。在对游客行为的影响因素进行研究的同时，探讨了游客行为研究在市场导向型旅游规划产品设计中的应用。     

Does seeing more deeply into a game increase one’s chances of winning?

The substantively rational value of the games studied in this paper does not help predict subject performance in the experiment at all. An accurate model must account for the cognitive ability of the people playing the game. This paper investigates whether the variation in measured rationality bounds is correlated with the probability of winning when playing against another person in games that exceed both players’ estimated rationality bound. Does seeing deeper into a game matter when neither player can see to the end of the game? Subjects with higher measured bounds win 63 percent of the time and the larger the difference the more frequently they win.