地方政府间支出责任划分对区县基本医疗卫生服务均等化水平的影响

1994分税制改革后,由于缺少明晰的财权事权划分标准,造成各级政府财力和支出责任不对等.本文根据《中国卫生服务调查》和《中国财政年鉴》数据,使用基尼系数测度区县基本医疗卫生服务的均等化水平,利用分位数回归方法分析地方政府间支出责任划分对区县基本医疗卫生服务均等化的影响.结果表明:政府卫生支出责任上移,区县政府支出责任的减轻有助于提高区县间基本医疗卫生服务的均等化水平.     

质量与价格双重竞争情景下的供应链协调策略分析

研究了由两个供应商和一个制造商构成的供应链系统中,在质量竞争和价格竞争同时作用下,供应链成员的协调运作策略。分析了供应链集中决策、供应商合作、供应商不合作以及混合情景下供应链成员的博弈均衡,并进一步分别讨论了价格竞争和质量竞争的激烈程度对不同情景供应链均衡解的影响。研究表明,供应商合作有助于提升供应商的质量努力程度,但会导致供应链整体利润的下降;质量竞争越激烈,在多数情景中供应商的质量努力程度就越高,这在供应商合作的情景中尤其明显,但价格竞争的激烈程度对供应商努力程度的影响较为有限,在供应商合作的情景中甚至可以忽略。     

高层领导者心理资本和社会资本对企业绩效的影响研究

通过对968位不同企业的高层领导者的问卷分析,检验了企业高层领导者心理资本和社会资本对企业绩效的影响,以及风险承担行为的中介作用.研究结果表明,企业高层领导者心理资本和社会资本对企业绩效与风险承担行为具有显著的正向影响;其风险承担行为对企业绩效具有显著的直接功效,且风险承担行为在高层领导者心理资本和社会资本对企业绩效的影响路径中起部分中介作用,即高层领导者心理资本和社会资本通过风险承担行为对企业绩效具有一定的间接功效.     

Assessing the Performance of a Classification‐Based Vulnerability Analysis Model

In this article, a classification model based on the majority rule sorting (MR‐Sort) method is employed to evaluate the vulnerability of safety‐critical systems with respect to malevolent intentional acts. The model is built on the basis of a (limited‐size) set of data representing (a priori known) vulnerability classification examples. The empirical construction of the classification model introduces a source of uncertainty into the vulnerability analysis process: a quantitative assessment of the performance of the classification model (in terms of accuracy and confidence in the assignments) is thus in order. Three different app oaches are here considered to this aim: (i) a model–retrieval‐based approach, (ii) the bootstrap method, and (iii) the leave‐one‐out cross‐validation technique. The analyses are presented with reference to an exemplificative case study involving the vulnerability assessment of nuclear power plants.     

Optimization of Cascade‐Resilient Electrical Infrastructures and its Validation by Power Flow Modeling

Large‐scale outages on real‐world critical infrastructures, although infrequent, are increasingly disastrous to our society. In this article, we are primarily concerned with power transmission networks and we consider the problem of allocation of generation to distributors by rewiring links under the objectives of maximizing network resilience to cascading failure and minimizing investment costs. The combinatorial multiobjective optimization is carried out by a nondominated sorting binary differential evolution (NSBDE) algorithm. For each generators–distributors connection pattern considered in the NSBDE search, a computationally cheap, topological model of failure cascading in a complex network (named the Motter‐Lai [ML] model) is used to simulate and quantify network resilience to cascading failures initiated by targeted attacks. The results on the 400 kV French power transmission network case study show that the proposed method allows us to identify optimal patterns of generators–distributors connection that improve cascading resilience at an acceptable cost. To verify the realistic character of the results obtained by the NSBDE with the embedded ML topological model, a more realistic but also more computationally expensive model of cascading failures is adopted, based on optimal power flow (namely, the ORNL‐Pserc‐Alaska) model). The consistent results between the two models provide impetus for the use of topological, complex network theory models for analysis and optimization of large infrastructures against cascading failure with the advantages of simplicity, scalability, and low computational cost.     

Fear and Urban Planning in Ordinary Cities: From Theory to Practice

The paper complements Abu-Orf's theory about violent settings by setting out a theory of fear in urban planning in ordinary urban contexts around three arguments: spatialization of fear; (modernist) spatialities and the encounter and political economies of urban fear. The three theoretical arguments are used to re-frame the planning history of Chelas, an affordable housing district in Lisbon, Portugal, and debate the way fear shapes, and is shaped in turn by, planning practice. Confirming that (growing) fear in ordinary urban contexts is not just an effect of the contemporary organization of cities, the paper argues for a theorization of fear that combines global (hegemonic) and a local (discursive/contingent) perspectives in the theorization of urban fear, and advocates for the need to put fear, and its capacity to create a crisis in urban policy, at the heart of planners' agendas.     

Cautious Expected Utility and the Certainty Effect

Many violations of the independence axiom of expected utility can be traced to subjects' attraction to risk‐free prospects. The key axiom in this paper, negative certainty independence ([Dillenberger, 2010]), formalizes this tendency. Our main result is a utility representation of all preferences over monetary lotteries that satisfy negative certainty independence together with basic rationality postulates. Such preferences can be represented as if the agent were unsure of how to evaluate a given lottery p; instead, she has in mind a set of possible utility functions over outcomes and displays a cautious behavior: she computes the certainty equivalent of p with respect to each possible function in the set and picks the smallest one. The set of utilities is unique in a well defined sense. We show that our representation can also be derived from a “cautious” completion of an incomplete preference relation.     

Essence taxonomy of Brazilian family businesses and conceptual implications for governance strategy

Journal of Management and Governance - This study advances the discussion on the governance of family businesses in emerging markets by exploring a taxonomy based on the F-PEC model in order to...     

采购赋能情境下平台供应链的库存风险共担策略研究

近年来,平台供应链中核心企业的采购赋能行为迅速增加,这有助于帮助供应链成员降本增效,但也可能引发核心企业自身的高库存风险。本文在同时考虑供应商产出不确定和零售商需求不确定的情境下,构建了由一个平台型电商企业、一个供应商和多个零售商组成的三级供应链系统,探讨了采购赋能情境下供应链的库存风险共担机制。研究发现,引入需求风险共担契约有助于提升供应商的生产投入水平、平台的订购量以及零售商的销售努力,并提高供应商与平台的利润。其次,引入产出风险共担契约会降低供应链成员的决策水平和利润。最后,对于不同类型的供应链风险应采取差异化的应对策略。