金融发展与区域创新的交互影响

基于2008—2017年长三角地区41个地级市的数据,通过构建联立方程模型,考察金融发展与区域创新之间的交互影响,探讨两者的空间溢出效应与地区交互影响。研究发现：金融发展对区域创新的正向促进作用不受时间跨度影响,但区域创新对金融发展的影响存在时间跨度异质性,短期内区域创新对金融发展影响不确定,而长期内区域创新反向促进金融发展,忽略这种反向影响会显著高估金融发展对区域创新的促进作用;区域创新与金融发展均存在正向空间外溢性,临近地区金融发展促进本地区的区域创新,但临近地区区域创新对本地区的金融发展作用并不显著。金融发展与区域创新应当融合联动,互利共生,实现双赢。     

外部视觉情绪设计对多媒体学习的影响

以高中生为被试对象,以大陆漂移论为素材,研究外部视觉情绪设计对多媒体学习的影响。结果表明,接受情绪设计组(实验组)的积极情绪显著高于中性组(对照组);实验组与对照组内在认知负荷、相关认知负荷均无显著差异,外在认知负荷小于对照组;实验组保持测验成绩显著高于对照组,迁移测验成绩无差异。同时,外部视觉情绪设计能显著提高多媒体学习效果。外部视觉情绪设计的实验设计突破了已有研究300s学习素材的诱发时间,拓展了多媒体学习情绪设计的内涵。     

河南经济增长的统计分析

以河南省1978年以来历年的生产总值为研究对象,从中原崛起的背景出发,简要说明了河南经济发展的现状及特点,分析了河南省生产总值的构成情况,通过与东部沿海发达省份进行比较,发现问题,针对分析出来的结果和存在的问题,找出原因并提出了推动河南经济增长的一些对策及建议。     

格式条款订入电信合同的法律效力问题

电信合同的缔结往往是以格式条款的形式实现。格式条款并非一经拟定就可直接对当事人产生约束力,其对当事人产生约束力的前提是格式条款的有效订入。格式条款的订入是规范及解释电信格式条款的前提,也是合同产生效力的基础。     

竞争中的参考价格效应及承诺

消费者的社会感知会影响其对产品和品牌的评价。当消费者进行购买选择时,经常会受到参考价格效应的影响。而广告和价格不仅是企业经常要考虑的重要决策,还会对参考价格产生重要影响。为此,一个值得研究的的问题是：在考虑参考价格效应的情况下,企业该怎样确定其动态广告和价格策略？
为了研究该问题,本文构建了一个广告和价格的动态模型,来研究一个双寡头市场环境下两个寡头企业的价格和广告决策,并以此分析参考价格效应的作用。具体而言,我们假定企业可以采用广告承诺和价格承诺中的一种,其中前者承诺其在一段时间内的广告投入量恒定不变,而后者确保价格不变。两种策略不仅会影响消费者的购买决策,也会影响竞争对手的选择。在上述假定下,我们探讨了两个寡头企业在都采用广告承诺、都采用价格承诺及一个企业采用广告承诺而另一个企业采用价格承诺等三种不同情形下的最优广告和价格决策,并以此分析了三种情形下参考价格效应对最优的广告投入及定价策略的影响。最后,通过数值分析,探讨了不同情形下企业的最优策略选择。     

基于Hawkes过程中美股市大幅波动互激效应的研究

近年来,由于中美经济联系日趋紧密,中美股票市场大幅波动的互激效应明显增强。本文考虑中美股市时差和法定节假日差异等因素,运用标值Hawkes过程对2006-2017年CSI300和S&P500大幅波动收益率数据进行建模,结果表明：（1）中美股市大幅波动互激效应存在不对称性,美股市场大幅波动对中国股市的互激效应更强;（2）中美股市大幅波动的幅度对互激效应不存在显著影响;（3）中美股票市场对于大幅波动互激效应的消化速度存在差异,中国股票市场消化美股大幅波动互激效应的速度较快。本研究对金融市场监管者和投资者均有一定意义。     

Leader negative feedback-seeking and leader effectiveness in leader-subordinate relationships: The paradoxical role of subordinate expertise

From a motivational perspective of feedback-seeking behavior, we examined the mediating role of leaders' negative feedback-seeking from subordinates in the relationship between the quality of leader-member exchange (LMX) and subordinates' evaluation of leader effectiveness, along with the moderating role of subordinate expertise in the mediated relationship. Using 151 unique matched sets of leader and subordinate reports obtained from 5 large Korean companies, we found that the positive relationship between LMX and leader effectiveness was mediated by leaders' negative feedback-seeking. Additionally, the positive relationship between LMX and leader negative feedback-seeking was stronger when perceived subordinate expertise was lower. Lastly, the indirect effect of LMX on leader effectiveness through leader negative feedback-seeking was stronger when perceived subordinate expertise was lower. These findings were obtained after controlling for leaders' power distance and goal orientations that might influence their motives to seek or avoid feedback. Theoretical and practical implications are discussed.     

Does community social embeddedness promote generalized trust? An experimental test of the spillover effect

Despite the theoretical relevance attributed to the spillover effect, little empirical research has focused on testing its causal validity. Addressing this gap in the literature, I propose a novel experimental design to test if the overall density of social links in a community promotes trustworthy and trusting behaviors with absolute strangers. Controlling for social integration (i.e. the individual number of social connections), I found that density fosters higher levels of trust. In particular, results show that people in denser communities are more likely to trust their unknown fellow citizens, encouraging isolated subjects to engage with strangers. However, evidence did not support the idea that community social embeddedness causes an increase of trustworthiness, indicating that the spillover effect works only with respect to trust.     

Accelerated test system strength models based on Birnbaum–Saunders distribution: a complete Bayesian analysis and comparison

Several models for studies related to tensile strength of materials are proposed in the literature where the size or length component has been taken to be an important factor for studying the specimens’ failure behaviour. An important model, developed on the basis of cumulative damage approach, is the three-parameter extension of the Birnbaum–Saunders fatigue model that incorporates size of the specimen as an additional variable. This model is a strong competitor of the commonly used Weibull model and stands better than the traditional models, which do not incorporate the size effect. The paper considers two such cumulative damage models, checks their compatibility with a real dataset, compares them with some of the recent toolkits, and finally recommends a model, which appears an appropriate one. Throughout the study is Bayesian based on Markov chain Monte Carlo simulation.     

国际金融危机对我国资源经济型地区增长的影响与对策

由于我国资源型地区经济与东部沿海地区的制造业之间存在明显的上下游产业关联,国际金融危机对制造业的冲击必然传导到资源型经济地区。资源型经济地区受金融危机的影响存在一定的滞后性,但受冲击程度更深;同时,扩大内需政策在资源型地区发挥政策效应也存在一定的滞后性。因此,扩大内需政策重点应突出短期效应强、对本地需求拉动效应明显的领域,以确保资源型经济地区经济的平稳增长。