价格涨跌幅限制起到了助涨助跌作用吗?

价格涨跌幅限制是否具有助涨助跌作用对于判断涨跌幅限制的实施效果具有重要的意义。既有的研究表明 ,股价在发生涨跌停时存在一定的过度反应。然而 ,本研究发现 ,在股价发生涨跌停时 ,虽然涨跌幅限制不能完全消除过度反应 ,但是可以显著地减小而不是增大过度反应的程度。本研究还发现 ,价格涨跌停本身并不是导致过度反应的原因 ,因为股价不仅在涨跌停时存在过度反应 ,而且在大幅度变化但未达到涨跌停时也存在过度反应。本文据此认为 ,没有证据表明价格涨跌幅限制具有助涨助跌作用。     

The role of complementarity and partner brand price level in new product introduction strategy using bundle offers: A study on the quality perception of bundle components

The quality perception of a new brand improves when it is bundled with a product having a strong brand image, moderated by the level of complementarity between the bundle components. This study takes this research forward with the help of two experiments. The first experiment uses anchoring and adjustment process to conclude that the quality perception of a new brand further strengthens if bundled with a strong brand of a higher price category than itself. The second experiment concludes that the quality perception of the strong brand can also deter if bundled with a new product of uncertain quality.     

Effective communication styles for the customer-oriented service employee: Inducing dedicational behaviors in luxury restaurant patrons

The goals of this study were (1) to identify the optimal facets of communication style for customer-oriented service employees and (2) to examine the ways in which the customer-oriented service employee (COSE) induces luxury restaurant patrons’ dedicational behaviors. Customer dedicational behaviors are defined as ‘a set of active and positive customer voluntary behaviors towards a business induced by high relationship quality’. Based on the existing body of communication literature, nine types of communication styles were derived. Theoretical relationships between the nine communication styles and the COSE also were developed via literature review, and causal relationships between the COSE and three different types of consumer dedicational behavior styles were subsequently suggested. By integrating the derived theoretical hypotheses, a conceptual model was proposed and then tested utilizing data collected from 527 luxury restaurant patrons. The results of data analysis revealed that five types of communication styles (attentive, friendly, impression leaving, open, and relaxed) bear a positive impact on COSE, while one communication style (contentious) bears a negative impact. It was also found that the customer-oriented service employee plays a critical role in inducing three types of dedicational behaviors in consumers: enhancement, cooperation, and advocacy. The key theoretical and managerial implications of these findings are discussed in the latter part of this article.     

单麦克风和双麦克风语音增强系统的研究

本文对采用减谱法和箱关法的语音增强系统进行了研究，系统的噪声为白噪声和普通机房噪声。减谱法采用单麦克风输入，试验中发现语音的分帧方法对消噪影响很大，通过比较得到了一种具有明显消噪效果的分帧方法，在相关法中采用双麦克风输入，对两个输入信号之间的时延差进行了补偿，在求维纳滤波器系数时，对信号谱进行统计平均，从而使消噪后的语音信号具有较好的自然度。在研究以上两种方法的基础上，我们提出了一种混合消噪系统，     

广西保险行业服务提升问题研究

规范服务是保险行业的核心价值理念之一。保险作为一种具有价值和使用价值的服务商品,其价值的实现依托于保险服务的提供。广西保险业目前处于快速发展阶段,保险行业服务模式存在诸多问题,阻碍着广西保险业的可持续发展,研究广西保险行业服务问题,具有重要理论价值和实践指导意义。本文探讨了保险服务的基本内涵,研究了广西保险行业服务体系的发展现状与存在问题,提出了完善广西保险服务制度的一系列对策和建议。     

Cost-Effective Targeting of Land Retirement to Improve Water Quality with Endogenous Sediment Deposition Coefficients

An integrated framework that combines spatial and biophysical attributes of land with a hydrological model and an economic model is developed to identify cropland for enrollment in the Conservation Reserve Enhancement Program. Sediment deposition coefficients are determined endogenously depending on the land-use decisions on other land parcels. Application of this framework to a watershed in Illinois demonstrates that highly sloping land adjacent to water bodies should be selected for retirement. A marginal value rental payment scheme can achieve program goals of 20% sediment abatement at 39% lower cost than a productivity-based rental scheme.     

The effect of alcohol consumption and contextual cues on the evaluation of new brands of alcoholic beverages at the POS

As per ELM, consumers' motivation and ability influence the route through which they process new information. A higher magnitude of these two factors leads to systematic information processing whereas a lower level leads to peripheral information processing. This research manipulated consumers' motivation by varying the contextual cues like bundle partner's brand image and functional relationship between the items whereas their ability was manipulated by alcohol administration to test its impact on the quality perception of a new brand of alcoholic beverage and the purchase intention of the bundle. A lower magnitude of motivation and ability increases the chances of adopting a categorisation approach to evaluate the new brand, and subsequently, the entire bundle. Therefore, a bundle's contextual cues dictate the evaluation of the new brand. Additionally, the alcohol priming effect leads to a greater propensity to try new brands of alcoholic beverages even if their quality is perceived to be inferior.     

韩国经济循环增强的动力机制探悉

本文以韩国经济循环增强动力机制和韩国产业更新升级的动力机制概括韩国经济发展因素之间的逻辑联系,揭示韩国经济创造生机、逐阶提升的时序演进规律性。主要启示是:要综合配置资源,形成循环增强的经济发展模式,并顺应环境变化而创新;扭曲的经济要及时矫正;要从国际竞争中获取经济发展的动力;要通过竞争培养企业竞争力。     

创业团队成员相同价值观会带来绩效提高吗？

价值观是个体对事物的道德评价标准,不同价值观决定了差异化的行为选择。从价值观结构视角出发,探讨了创业团队成员不同类型价值观一致性对创业绩效的作用机理及股权配置公平对两者关系的调节作用。采用层级回归方法对175个创业团队样本进行实证研究,结果显示：创业团队成员的自我超越价值观一致性、开放价值观一致性正向影响创业绩效;自我提高价值观一致性、保守价值观一致性不利于创业绩效提升;股权配置公平对自我超越价值观一致性、开放价值观一致性与创业绩效之间的关系具有正向调节作用,弱化自我提高价值观一致性与创业绩效的负向关系,但对保守价值观一致性与创业绩效关系的负向调节作用并不显著。     

美藤果油增强免疫力的试验研究

为探究美藤果油对免疫力的增强作用,选用雄性健康Wistar大鼠20只,雄性高血脂Wistar大鼠20只,体重(200±10)g,按照随机法将健康Wistar大鼠分为实验1组和对照1组,将雄性高血脂Wistar大鼠分为实验2组和对照2组,每组10只。对照1、2组大鼠使用普通大鼠饲料;实验1、2组大鼠在对照组基础上,每百克饲料中混合7 g美藤果油,连续饲养10周后进行免疫力检测。结果表明:4组大鼠均未出现死亡,且通过观察发现实验1组大鼠活力及精力均强于其他大鼠,且对照2组大鼠的精力及活力最差;实验1组淋巴细胞刺激指数、IL-2、IL-4的含量显著高于实验2组、对照1组及对照2组(P0.05),实验2组与对照1组大鼠则不存在显著性差异(P0.05),对照2组大鼠显著低于实验2组(P0.05)。由此可知,美藤果油具有增强免疫力的功能,值得推广食用。