Threats to the Validity of Logistics and Supply Chain Management Research

To increase the relevance of logistics and supply chain academic research, this paper recommends the development and testing of middle‐range theory and practice‐level theory. Yet, there are a number of research issues that arise when academic researchers test middle‐range and practice‐level theory, both in measuring constructs and in testing theoretical relationships between constructs. Concerning the measurement of constructs, this paper recommends that academic researchers pay more attention to content validity and undertake rigorous processes to ensure content validity. In addition, academic researchers need to more explicitly define constructs as either reflective or formative. If the construct is defined as formative, then the traditional statistical approaches to validate these measurement scales are not recommended. The appropriate use of employing single‐item measures for concrete constructs is discussed. In regard to conducting hypothesis tests, research issues associated with multicollinearity and omitted variable bias are discussed. Relative weight analysis is ideal for testing theoretical models and research hypotheses when survey data are obtained, multicollinearity is present, and there are a large number of independent variables predicting a dependent variable. Thus, relative weight analysis is ideal for testing research hypotheses in logistics and supply chain management.     

Research collaboration model in academic social networks

ABSTRACT

This paper proposes a hybrid collaboration recommendation method that accounts for research similarities and the previous research cooperation network. Research cooperation is measured by combining the collaboration time and the number of co-authors who already collaborated with at least one scientist. Research similarity is based on authors’ previous publications and academic events they attended. A weighted directed graph is built to discover new collaborators by using direct and indirect connections between scientists. Moreover, a consensus-based system is built to integrate bibliography data from different sources. The experimental results show that our method improves the recommendation performances over other methods.     

Is it U.S. GAAP or IFRS? Understanding how R&D costs affect ratio analysis

While financial reporting standards under U.S. GAAP and IFRS are fundamentally similar, differences do exist that may affect our analysis of company financial statements. This is particularly true when comparing a U.S. company following U.S. GAAP to a firm that uses IFRS. To illustrate, we compare research and development (R&D) accounting methods under both sets of standards and illustrate how they affect the analysis of financial results of firms in a specific industry—automotive manufacturers. Our results provide insight into settings in which differences in R&D accounting may have the greatest impact on financial analysis.     

Firm performance and corporate finance in New Zealand

Low productivity growth in New Zealand has been a paradox. We study New Zealand firms’ profitability, in terms of profit margin and return on assets (ROA), from the viewpoints of productivity enablers using firm-level panel data. We find that tangible fixed investment and a research and development (R&D) tax incentive are associated with higher profitability performance. In addition, the firm size is found to be a key determinant of profit margin. By contrast, we do not find any evidence that intangible investment can improve the profitability. The global financial crisis has not changed the leverage effect on ROA in New Zealand, while the impact of R&D became more prominent after the crisis.     

国内外健康旅游研究述评

基于叙述性文献综述法梳理国内外健康旅游的研究脉络,研究发现国内外对于健康旅游的研究内容和方法具有较大差异。国内健康旅游的研究仍处于起步阶段,研究内容集中于资源开发、产业现状及发展对策等方面,研究中多采用定性研究的方法。国外对于健康旅游的研究范围则从单一类型的水疗旅游逐渐向医疗旅游、保健旅游、旅游动机等细分领域拓展,研究方法的选择更加多元,定性、定量以及定性和定量相结合的方法均具有相当的比例。希望通过对国内外健康旅游研究差异的分析,找到国内在该领域研究的不足,为国内未来在健康旅游领域的研究和健康旅游产业的发展提供思路和指导。     

荷兰食品产业与创新概述

从食品产业来讲,荷兰是一个强国,在全球享有很高声誉,而产学研协同创新是荷兰食品产业取得成功的关键。本文对荷兰食品产业及发展方向、主要食品研发机构和企业,以及"食品谷"等做了简要介绍,以加深对荷兰食品产业的了解,推动中荷在食品领域的合作。     

基于内容分析法的科技成果转化政策演进趋势分析

科技成果转化政策是强化科技与经济联系,完善创新体系的重要手段,是推动创新驱动、实现高质量发展的关键。论文选取1996—2017年中国中央政府及各部委所发布的85篇与科技成果转化相关的政策文本,采用内容分析法对其演进趋势及内在规律分析,得出政策制定部门参与水平上升、政策工具搭配组合日益多元、重视提升政策客体转化积极性的结论,并对未来政策发展方向提供思路。     

共享型领导对员工建言行为的影响 ——员工权力感的中介作用

本文探讨了共享型领导对员工建言行为的影响,以及员工权力感的中介效应和差错风险承担、角色自我效能感的调节作用,丰富了员工建言行为、共享型领导的相关理论并给出了相应的实践建议。以上海多家企业中的员工以及其直属上级领导作为研究对象,通过194对领导-下属有效调查问卷分析得出了以下结论:①共享型领导对员工的促进性建言与抑制性建言都有显著的正向预测作用;②员工权力感在共享型领导与员工建言行为之间存在中介作用;③差错风险承担在员工权力感与促进性建言之间存在调节作用,角色自我效能感在员工权力感与抑制性建言之间存在调节作用。本文在此研究结果的基础上进行讨论并给出相关管理建议。     

数字化时代工作特征、个体特征与员工数字化创造力 -创新自我效能感的中介作用和性别的调节作用

本文以长三角地区多家企业的228名员工作为研究对象,通过问卷调研的形式对工作特征、个体特征与员工数字化创造力之间的关系,在这些关系中创新自我效能感所起到的中介作用以及性别在这一中介机制中起到的调节作用进行了实证检验,结果表明,工作特征中的工作自主性和任务多样性以及个体特征中的个体数字化技术知识分别对员工数字化创造力有显著的正向影响作用,创新自我效能感在其中起重要的中介作用,同时性别在工作特征与创新自我效能感之间起调节作用,男性更容易受到任务多样性的影响,而女性创新自我效能感的产生更易受到工作自主性的影响。     

The Evolving Structure of Chinese R&D Funding and its Implications for the Productivity of Agricultural Biotechnology Research

China’s research and development (R&D) policy has changed considerably over recent decades, and great changes occurred in 2006 when the main programme objective of China’s R&D changed from the 863 Programme and 973 Programme to the National Science and Technology Major Project. One topic that has drawn extensive attention is whether the investment reform improved R&D productivity in China. Using a unique panel dataset from 160 universities, this paper examines the effect of the investment reform on productivity improvement in China’s agricultural biotechnology sector. We use a panel count data model with a dynamic feedback mechanism to model the knowledge production process. Strong evidence indicates that the investment reform greatly contributes to knowledge output production in China’s agricultural biotechnology sector. We also find that the input quality is more important than the absolute quantity; human research capacity exhibits the greatest contribution to the output of patents; past knowledge accumulation helps produce more patents; and entry barriers to patent production exist in China’s agricultural biotechnology sector. Moreover, the patent explosion in China may have been largely caused by improvements in the human capital input quality.