A Machine Learning Analysis of the Recent Environmental and Resource Economics Literature

We use topic modeling to study research articles in environmental and resource economics journals in the period 2000–2019. Topic modeling based on machine learning allows us to identify and track latent topics in the literature over time and across journals, and further to study the role of different journals in different topics and the changing emphasis on topics in different journals. The most prevalent topics in environmental and resource economics research in this period are growth and sustainable development and theory and methodology. Topics on climate change and energy economics have emerged with the strongest upward trends. When we look at our results across journals, we see that journals have different topical profiles and that many topics mainly appear in one or a few selected journals. Further investigation reveal latent semantic structures across research themes that only the insider would be aware.

     

管理层权力制衡强度、债务约束与企业创新投资

企业创新是国家经济可持续增长的关键，受到管理层意愿的影响，因而需要对内部经营者的权力进行制衡。以2010-2018年我国A股上市公司为研究样本，实证检验管理层权力制衡强度对企业创新投资的影响，以及不同债务约束情境下高商业信用配置、高负债水平的调节效应，此外，还考察了产权性质的差异化影响。研究表明，管理层权力制衡强度越大，企业创新投资水平越高；高商业信用强化了该促进作用，而高负债水平弱化了该促进作用。进一步研究发现，管理层权力制衡强度与企业创新投资的关系在民企中更显著；国企能够更好地获得和运用商业信用，使其高商业信用对该关系的强化效应更显著；民企具有更强的债务约束，其高负债水平对该关系的弱化效应更明显。     

国际策略情境、国际双元学习与后发企业创新赶超

整合国际策略与双元学习理论，构建国际策略情境、国际双元学习的平衡和联合与后发企业创新赶超之间的关系模型。基于长三角地区327家外向型制造企业（高新技术企业）问卷调查数据，发现国际策略情境以及国际双元学习平衡和联合均显著正向影响企业创新赶超，国际策略情境对国际双元学习平衡和联合均具有显著正向影响，并且国际双元学习平衡和联合均在国际策略情境与创新赶超之间具有部分中介作用。研究结果揭示了国际化视域下双元学习与后发企业创新赶超的内在影响机制，延展了企业国际化、组织学习和创新赶超等相关领域理论空间，对于本土企业有效实施创新赶超具有启示意义。     

寡头市场具有混合捆绑销售契约的竞争分析

在寡头竞争市场环境下,生产完全互补产品的厂商可以通过谈判签约并使用"混合捆绑"策略进行竞争,如电信运营商与手机厂商共同推出的签约套餐和预付费套餐.针对这种行为,文章构建了一个包含两组互补品厂商的寡头博弈模型,研究混合捆绑销售契约对市场价格、厂商利润和社会福利的影响.研究表明:当只有一组厂商签订混合捆绑销售契约时,签约厂商能够从捆绑折扣中获得竞争优势,而竞争对手则被迫降低自己产品价格并在竞争中处于劣势;当两组厂商均签订混合捆绑销售契约时,围绕捆绑产品的竞争将使得捆绑折扣进一步提高,但各自的利润却下降了.然而当这种签约策略内生时,所有厂商将选择签订契约并进行捆绑销售,从而陷入"囚徒困境".最终,在互补产品"纵向外部性"和系统产品"横向外部性"的共同作用下,混合捆绑销售契约提高了消费者剩余而降低了社会福利.基于本文分析,应该反对竞争政策对厂商谈判签订契约使用混合捆绑策略进行竞争的行为.文章的贡献在于从契约的角度研究厂商之间的捆绑销售策略,并运用统一的分析框架考察了不同契约结构下厂商实施捆绑销售的动机,对于深化捆绑销售的理论研究和完善竞争政策具有重要的借鉴意义.     

社会网络视角下的创客资本研究

揭示创客资本的内涵与特征，有助于深层次挖掘创客与经济社会发展之间的关系。运用关键词共现、社会网络分析和扎根理论方法，对148篇文献、21位由创客与众创空间负责人等构成研究对象的访谈资料和网络文本资料展开分析。社会网络分析发现互联网、数字经济、分享经济等是创客发展的重要驱动力，创客可借助众创空间社会网络跳出时空局限，运用网络资源参与大众创新活动，并与社会网络形成价值共创关系，推动协同创新和平台生态系统构建；扎根理论分析结果表明，创意制造、开放协同、网络共生、边际非稀缺是创客资本的4个核心特征，并印证了社会网络分析结果。基于上述分析结果，进一步基于社会网络理论界定了创客资本的内涵，提出未来需要深度挖掘创客资本与网络场景之间的交互机制及其结果效应。     

All work intensity is not created equal: Effort motives,job satisfaction and quit intentions at a grocery chain

Prior research has shown that the well-being of employees engaged in intensive work can vary with the discretion their jobs afford regarding how and when to carry out the work. This article explores a different avenue. It argues that well-being also varies with employees’ individual motives for working intensively. The article introduces self-determination theory to the domain of work intensity and focuses on two hypotheses. The first is whether intensive work driven by explicit or implicit incentives is more positively associated with an employee's job satisfaction than intensive work driven by job demands. The second is whether intensive work driven by intrinsic motives is more positively associated with job satisfaction than that driven by explicit or implicit incentives. In both these cases, the article also examines whether equivalent effects exist on (reduced) quit intentions. Original data from a major Greek grocery chain provide corroborative evidence that is robust to a rich set of covariates, including increasingly demanding adjustments for job discretion. The findings contribute to a more complete understanding of why differences in well-being exist among employees performing intensive work, with implications for workers and employers.     

An agent-based multiattribute reverse auction approach for online secondhand commodities

Due to the price elasticity of demand for secondhand commodities, it is difficult to establish a quantitative model for the auction. This paper proposes an agent-based multiattribute reverse auction model to support multicommodity combinatorial auction. First, this paper establishes an agent-based reverse auction model and introduces the framework, procedures, and protocols of the model in detail. Second, in light of the multicommodity environment, the targets, protocols, auction strategies, and approaches are identified. Finally, by using the proposed agent-based auction model, both buyers and sellers will reach simultaneous agreements on the details of the commodities to complete the auction.     

Keeping Teams Together: How Ethical Leadership Moderates the Effects of Performance on Team Efficacy and Social Integration

Journal of Business Ethics - Prior research has demonstrated a strong relationship between team performance and team members’ team efficacy beliefs and perceptions of social integration....