Diversification, convex preferences and non-empty core in the Choquet expected utility model

Summary. We show, in the Choquet expected utility model, that preference for diversification, that is, convex preferences, is equivalent to a concave utility index and a convex capacity. We then introduce a weaker notion of diversification, namely “sure diversification.” We show that this implies that the core of the capacity is non-empty. The converse holds under concavity of the utility index, which is itself equivalent to the notion of comonotone diversification, that we introduce. In an Anscombe-Aumann setting, preference for diversification is equivalent to convexity of the capacity and preference for sure diversification is equivalent to non-empty core. In the expected utility model, all these notions of diversification are equivalent and are represented by the concavity of the utility index. Received: July 27, 1999; revised version: November 7, 2000     

核心企业主导型创业生态系统构成与运行机制:以杭州云栖小镇为例

创业生态系统研究逐渐得到学术界重视,但缺乏基于类型学角度的具体探讨,一直处于抽象层面,这一研究现状不利于理论建构。聚焦核心企业主导型创业生态系统构成、核心企业在创业生态系统运行过程中的主导作用,实证研究国内创业生态系统运行机制,以杭州云栖小镇为案例的研究显示：①核心企业基于自身核心能力及网络中心位置,联合各类主体搭建价值网络体系,通过市场化的网络治理机制与跨界开放式创新,协调多主体在创业生态系统不同阶段、不同层次的复杂交互关系,服务于系统中创业企业发展;②在核心企业主导型创业生态系统平台搭建期,通过创业支持机制发挥主导作用。在组织运行期通过资源承诺机制、全链条孵化机制与网络嵌套机制发挥主导作用。在协同获取期,通过资源共享机制、企业协同机制发挥主导作用。     

Testing measurement invariance using multigroup CFA: differences between educational groups in human values measurement

This article applies the testing procedures for measurement invariance using multigroup confirmatory factor analysis (MGCFA). It illustrates these procedures by investigating the factorial structure and invariance of the Portraits Value Questionnaire (PVQ, Schwartz et al.: J. Cross Cult. Psychol. 32(5), 519–542 (2001)) across three education groups in a population sample (N  =  1,677). The PVQ measures 10 basic values that Schwartz postulates to comprehensively describe the human values recognized in all societies (achievement, hedonism, self-direction, benevolence, conformity, security, stimulation, power, tradition and universalism). We also estimate and compare the latent means of the three education groups. The analyses show partial invariance for most of the 10 values and parameters. As expected, the latent means show that less educated respondents attribute more importance to security, tradition, and conformity values.     

上市公司内部审计管理战略初探

上市公司内部审计在建立完善企业内部控制、加强内部管理、提高企业核心竞争力方面发挥着越来越大的作用。本文认为,在国际、国内经济形势日益发生变化的今天,如何从战略的角度开展内部审计的核心专长和核心能力的培养;内部审计人员的人事、招聘管理和内部审计人员的绩效评价管理的研究,显得十分重要。     

协调度视角下长江流域产业转移效率研究

实现区域经济协调发展是当前我国在块集聚与点极化双重压力下面临的现实难题,长江经济带尤其是欠发达省份承接发达地区产业转移是解决该难题的必然路径选择。产业转移活动因区域主客体特征变量不同,呈现出典型的多发式转移和门槛转移特征,使得区域政策制定缺乏科学指导,陷入盲目拼政策红利的状态。结合效率模型及考虑熵权的经济社会发展协同度分析,测算了2004-2016长江经济带各省（市）年综合产业转移效率,并考察了门槛效应值及变化趋势。结果表明：在考察期内,长江经济带各省（市）产业转移效率提升较为明显,但不少省（市）存在不协调的阶段性平衡关系,且这种关系还未显露经济总量驱动下的协同发展能力。     

企业核心竞争力缺失原因及其防范途径

核心竞争力缺失是众多企业面临的问题。在对核心竞争力缺失的含义、状态特征、判断识别分析的基础上,探讨了导致企业核心竞争力缺失的原因,提出了防范企业核心竞争力缺失的途径。     

商业银行核心竞争力的内容架构和发展趋势

伴随我国对外开放和体制改革的扩大发展,商业银行之间的竞争日益激烈.商业银行要想在长期的竞争中生存并发展壮大,必然涉及到自身的核心竞争力问题.研究现代银行核心竞争力问题,需要从指标体系和内部机制两个方面入手.本文主要从内部机制方面探讨商业银行的核心竞争力,并从金融技术创新是银行核心竞争力的基础、组织结构创新是银行核心竞争...     

韩国发展风险企业的核心制度及对中国的启示

中国与韩国虽然社会制度不同、经济发展水平存在差异,但都具有出口主导型经济发展的明显特征,且韩国作为先于中国的新兴工业化国家较早地进行了经济结构调整和转变经济发展方式。基于国际金融危机背景下风险企业发展重要性的不断凸显,探讨了韩国风险企业发展的核心制度安排,可为中国提供参考。     

Strategy antecedents of modes of entry into foreign markets

Although a firm's choice of mode of entry to a foreign market is central to the implementation of international strategy, we have only limited understanding of the effects of international strategy on the choice. This study explores the effects of business relatedness and corporate international experience. Data were collected on 173 ventures of Swedish manufacturing firms that were present on the German market, and multivariate techniques were applied to test hypotheses. It was found that product/market relatedness and intangible resource relatedness between the foreign business unit and the industrial firm's core business unit favored a full control entry mode based on sole ownership. This finding was also valid for importance of foreign markets. Further, market importance moderated the two relationships regarding business relatedness. Contributions to the literature are discussed.     

核心企业治理能力对模块化组织价值创新的影响

模块化组织中核心企业治理能力直接关系到组织价值创新绩效。构建了核心企业治理能力影响模块化组织价值创新的概念模型,并将环境动态性作为调节变量引入该模型。基于268家以模块化方式运行的样本企业数据开展实证研究发现：核心企业治理能力所包含的系统设计能力、合作主导能力、关系协调能力和知识重构能力均对模块化组织价值创新产生了正向影响。其中,系统设计能力对组织价值创新的促进作用最大,其它依次为关系协调能力、知识重构能力和合作主导能力;在环境动态性的调节作用下,核心企业关系协调能力和知识重构能力会增强对组织价值创新的正向影响,而系统设计能力和合作主导能力会削弱对组织价值创新的正向影响。