感知风险对在线旅游产品购买意愿的影响分析

旅游电子商务发展迅猛,互联网购物平台的虚拟性和远程性强化了消费者感知风险,它也成为影响旅游电子商务发展的重要因素之一.文章聚焦消费者感知风险,运用SPSS 19.0及AMOS 21.0软件,构建以5个维度的感知风险为自变量、购买意愿为因变量、信任为调节变量的结构方程模型,探讨变量间相关关系.结果发现:感知风险对信任的影响差异较大,仅经济风险感知与信任呈显著负相关;感知风险对购买意愿总效应皆呈负相关;信任作为中介变量存在明显的调节作用,有效地降低了感知风险对购买意愿的负向影响.     

Social service purchasing in China: Rationale,features, and risks

As part of a broader program of market reform, China's local governments are progressing an agenda of purchasing child welfare and other social services from the nongovernment sector, primarily to expand capacity and address vast unmet need. This paper draws on current research evidence to explore the approaches to purchasing emerging in China, examining the rationale for purchasing and models of supply, competition, and regulation. While some approaches are modeled on direct service contracting, direct purchasing of social service “posts” is also used, aimed at achieving goals of professionalization alongside service expansion. Overall, the review shows purchasing is helping to rapidly expand service scale and capacity; however, regulatory strategies for managing and mitigating risks to quality and access appear lacking. This highlights the need for further scholarship aimed at developing the robust risk management strategies which are required to support high quality, sustainable provision of purchased services.     

政府向社会力量购买服务改革的制度障碍及对策

政府向社会力量购买服务不仅是推动政府职能转变的重要着力点,而且是扶持社会力量发展的重要措施。各地在推动这项改革过程中取得了很大成效,但也存在着制度设计不严密、制度衔接不顺畅等问题和障碍。将这项改革深入推进下去,需要坚持有层次地放开政府资源,加强对整个购买过程的动态管理以及建立政府购买公共服务改革同其他改革之间的联动机制等多项措施的推动。     

Responding to violence with guns: Mass shootings and gun acquisition

Although some sources have observed an increase in the number of gun purchases following mass shootings, empirical research investigating this pattern is limited. Appraisal Theory suggests that mass shootings contribute to fear of victimization through media exposure. Desire for self-protection is the primary reason many individuals own and purchase guns. This paper examines this link by assessing the effects of six mass shootings that took place in the 2000–2010 time period. This study examines effects for gun acquisition nationally and regionally as well as timing-specific patterns in gun acquisition following these events. Gun acquisition counts are approximated from the National Instant Criminal Background Check System (NICS). Results indicate a positive but delayed association between mass shootings and the number of NICS background checks. Implications of this finding for violence and possibilities for future research are discussed.     

技术特征、关系结构与社会化购买行为

社会化媒体技术与社会关系网络促进了社会化商务(SC)的价值创造，如何有效利用技术与用户的关系结构是 SC 企业提高其平台购买转化率的关键． 从双重视角探索技术与关系如何影响用户购买决策，基于刺激―机体―反应框架，构建了以技术可供性和强、弱关系为刺激因素，信息诊断性和意外发现性为内在机体状态，社会化购买意向为“反应”的理论模型，探索了用户社会化购买行为的发生机制． 以具有社会化购买体验的微信用户作为研究对象，运用 SmartPLS 3.0 对模型进行了路径检验和假设分析． 研究结果发现: 技术可供性与弱关系对信息诊断性和信息意外发现性具有正向影响; 弱关系对信息意外发现性的影响作用大于强关系; 信息诊断性正向影响信息意外发现性，信息诊断性与意外发现性对社会化购买意向均有显著正向影响; 然而，强关系对信息意外发现性的影响不显著． 信息诊断性与信息意外发现性部分中介了技术可供性对社会化购买意向的影响，完全中介了弱关系对社会化购买意向的影响，信息诊断性部分中介了强关系对社会化购买意向的影响． 为进一步探究社会化购买行为提供 了理论基础和实践指导．     

基于多目标加权灰靶决策模型的节能服务公司选择研究

用能方对节能服务公司（Energy Service Company，ESCO）的选择关系到合同能源管理（Energy Performance Contracting，EPC）能否顺利实施。从用能方的角度，采用灰色系统理论中的多目标加权灰靶决策模型，对存在多决策目标的ESCO选择问题进行研究。通过层次分析法确定ESCO的11个决策目标的决策权数，根据综合效果测度值的比较，最终实现最优对策的选择。本文为用能方的ESCO选择问题提供了一种新的思路。     

考虑重复购买因素的品牌竞争对新产品扩散的影响研究——基于小世界网络的仿真环境

在对品牌竞争影响要素分析的基础上，考虑重复购买在新产品扩散过程中的调节效应，构建以消费者微观采纳机制为核心的新产品扩散的阈值模型，在小世界网络仿真情境下，运用多智能仿真方法对品牌竞争与新产品扩散之间的影响关系进行分析，研究结果表明：转换成本对新产品扩散的速度和深度的影响存在一定的"条件区域"，在该区域之外两者不存在显著的影响关系；进入时间与两种竞争性品牌的扩散速度存在一致的负向的影响关系，而对两种竞争性品牌的扩散深度的影响方向则相反；在此过程中，重复购买系数起着一定的调节效应，会在一定程度上放大或缩小转换成本及进入时间对新产品扩散的影响效应。通过本文的研究，不仅可以进一步丰富和完善竞争性产品创新扩散的相关理论，也可以为企业的新产品推广实践提供决策支持。     

“托物取象”与诗性言说——论古典文论对李健吾文学批评的影响

李健吾的文学批评在古典文论的影响下形成了独树一帜的批评风范.他强调直觉感悟,善于营造意象,运用比喻、象征、类比等手法传达阅读感受,形成“托物取象”的论证方法;形式自由,短小精悍,文字飘逸、饱含诗情,形成了诗性言说下的散漫文体与诗意语言风格.     

Sexual Orientation in State Hate Crime Laws: Exploring Social Construction and Criminal Law

Several studies have described and analyzed the development and diffusion of hate crime laws in the United States, but none specifically examined state-level differences in protected categories. Forty-five of the 50 states have a hate crime statute, but only 30 of those include sexual orientation. In this study the social construction framework is applied to the hate crime policy domain in order to determine whether or not variations in the social and political status of gays and lesbians are associated with the inclusion of sexual orientation in state hate crime laws. Content analysis of daily newspapers in six states revealed that a positive social construction is associated with groups seeking hate crime law protections, and that political influence may also be a key factor.     

目标导向层次分析方法

对含有抽象属性的多属性层次结构而言，层次分析法即AHP（包括DIS-AHP、ABS-AHP、IDE-AHP和SUP-AHP四种具体方法）会因比率比较基准缺失、权重内涵模糊不清或方案评价不保序而缺乏科学理性。为发展AHP，基于摆幅置权（SW）判断模式和多属性决策属性价值公度方法，首先给出了能为层次结构抽象属性上的SW判断提供支持的规约性多属性决策属性价值公度方法，然后由此并结合多属性价值理论给出了能够克服现有层次分析法内在缺陷的目标导向层次分析方法即ToAHP。相对于AHP，ToAHP在判断模式与权重内涵、方法建构的理论基础和相关假设检验、方案评价保序与其内在数理依据上具有明显的相对科学合理性。应用分析表明：在输入信息可比的条件下，ToAHP明显优于AHP的四种分析方法之中最具可信性的SUP-AHP方法。