网络密度、高管注意力配置与企业绿色创新:制度压力的调节作用

本文整合社会网络理论、注意力基础观和新制度主义理论等,通过对282家制造企业的问卷调查,采用多元回归分析方法,探讨了网络密度和高管注意力配置的交互匹配对企业绿色创新的影响机制,以及制度压力在其中的调节作用。研究发现,在高密度网络中,高管采用注意力聚集策略对绿色创新有显著正向影响;而在低密度网络中,高管采用注意力分散策略对绿色创新有显著正向影响。规制压力和模仿压力均正向调节网络密度和高管注意力配置的交互作用对绿色创新的影响,但模仿压力的调节作用更强。通过构建不同制度压力情景下网络密度与高管注意力的交互作用对绿色创新影响的理论框架,本文推动社会网络理论、注意力基础观等成熟的理论成果从一般创新向绿色创新研究领域繁衍,为企业绿色创新加入与主流理论的对话做了努力,为企业在绿色创新过程中根据不同的制度压力,以及所嵌入的组织间网络密度情况,选择合适的注意力配置策略提供理论参考。     

A constitutional theory of the family

The paper re-examines the idea that a family can be viewed as a community governed by a self-enforcing constitution, and extends existing results in two directions. First, it identifies the circumstances in which a constitution is renegotiation-proof. Second, it introduces parental altruism. The behavioural and policy implications are illustrated by showing the effects of public pensions and credit rationing. These implications are not much affected by whether altruism is assumed or not, but contrast sharply with those of more conventional models.

Stale economic news,media and the stock market

I employ a classification of headlines from newspapers and wire services to examine whether stale macroeconomic news affects stock prices. Unlike with individual stocks, the cost of obtaining information about major economic releases is relatively low. Thus, stock prices should adjust to economic news announcements prior to their coverage in newspapers. I find statistically and economically significant relationship between stale news stories on unemployment and next week’s S&P 500 returns. This effect is then completely reversed during the following week. These findings show that investors are affected by salient information and support the hypothesis that investors overreact to stale macroeconomic news reported in newspapers.     

Book Reviews

No abstract available for this article.     

Relationship of sleep quality and attention deficit hyperactivity disorder symptoms with quality of life in college students

Abstract

Objective: Attention deficit hyperactivity disorder (ADHD) negatively influences various aspects of life such as social relations, adaptive skills, and occupation. In addition, many university students experience sleep problems, academic failure, and low quality of life (QOL). We investigated the relationship among ADHD symptoms, sleep quality, and QOL of college students, and identified the factors related to their QOL. Participants and Methods: Using a survey questionnaire, data were collected from 195 students from March–May 2017. Results: QOL of students was related to ADHD symptoms and sleep quality. Factors significantly associated with better QOL were fewer ADHD symptoms, good sleep quality, male sex, high academic performance, and high economic status. The explanatory power of these variables on QOL was 32.0%. Conclusion: To improve the QOL of college students, a multifaceted approach that includes assessment of ADHD symptoms and sleep quality is needed.     

论南宋理学家陈亮的"明"思想

南宋理学家陈亮认为道(理)是与自然和人的社会生活密切相关的,它如同"赫日当空,处处光明.闭眼之人,开眼即是",是人们可以体察、认识的客观存在."王道"、"霸道"是贯通三代和汉、唐以下各代帝王治国的指导思想,从未被"隔断"过,"王霸并用"之论是合乎历史事实的,是治国良策."义理"、"功利"是三代、汉、唐皆有的行为准则,不是对立的,而是并存的,义要体现在利上,利也就是义,"义利双行"缺一不可.帝王治国要"爱人利物"、"生民之利"、"义利双行"才能富国强兵,人民生活安定.在"成人之道"问题上,陈亮主张做人要做一个堂堂正正(即光明磊落)、"推倒一世"、"开拓万古"的"智勇"之士,作一个实事实功的英雄豪杰.陈亮对以上三大问题的观点,是他的"明"思想最直接的体现.     

Latent transition models with latent class predictors: attention deficit hyperactivity disorder subtypes and high school marijuana use

Summary.  Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental disorder which is most often diagnosed in childhood with symptoms often persisting into adulthood. Elevated rates of substance use disorders have been evidenced among those with ADHD, but recent research focusing on the relationship between subtypes of ADHD and specific drugs is inconsistent. We propose a latent transition model (LTM) to guide our understanding of how drug use progresses, in particular marijuana use, while accounting for the measurement error that is often found in self-reported substance use data. We extend the LTM to include a latent class predictor to represent empirically derived ADHD subtypes that do not rely on meeting specific diagnostic criteria. We begin by fitting two separate latent class analysis (LCA) models by using second-order estimating equations: a longitudinal LCA model to define stages of marijuana use, and a cross-sectional LCA model to define ADHD subtypes. The LTM model parameters describing the probability of transitioning between the LCA-defined stages of marijuana use and the influence of the LCA-defined ADHD subtypes on these transition rates are then estimated by using a set of first-order estimating equations given the LCA parameter estimates. A robust estimate of the LTM parameter variance that accounts for the variation due to the estimation of the two sets of LCA parameters is proposed. Solving three sets of estimating equations enables us to determine the underlying latent class structures independently of the model for the transition rates and simplifying assumptions about the correlation structure at each stage reduces the computational complexity.     

L’économie de l’attention : entre protection des ressources cognitives et extraction de la valeur

This general survey of the economics of attention presents the major theoretical models for exploring the mechanisms for “allocating” attention in an economy where it is a scarce resource. Writers have emphasized various means for attracting attention: the recognition, relevance, style and power of the emitter of information. The economics of attention subjects parties on the Internet and in the electronic media to two apparently opposite rationales. The first seeks to protect the attention of users from an information overload and improve its allocation. The second seeks to capture, for firms, the attention of customers or audiences in order to make money from it. Reconciling these two approaches is a challenge for innovation and an asset for competing in the digital economy.     

The ostrich effect: Selective attention to information

We develop and test a model which links information acquisition decisions to the hedonic utility of information. Acquiring and attending to information increases the psychological impact of information (an impact effect), increases the speed of adjustment for a utility reference-point (a reference-point updating effect), and affects the degree of risk aversion towards randomness in news (a risk aversion effect). Given plausible parameter values, the model predicts asymmetric preferences for the timing of resolution of uncertainty: Individuals should monitor and attend to information more actively given preliminary good news but “put their heads in the sand” by avoiding additional information given adverse prior news. We test for such an “ostrich effect” in a finance context, examining the account monitoring behavior of Scandinavian and American investors in two datasets. In both datasets, investors monitor their portfolios more frequently in rising markets than when markets are flat or falling.

我国民法中的法律拟制与注意规定

民法也是一般规定与特别规定的统一体,其中的特别规定就包括法律拟制和注意规定。法律拟制和注意规定在适用条件、认定结论和法条解释等方面存在着重大区别,所以,我们必须正确确认民法中的一些特别规定的性质,尤其对于若干很是引起争议的特别法条,在认定其究竟属于法律拟制还是注意规定时更需小心地求证和谨慎地判定。