The impact of dual network structure on firm performance: the moderating effect of innovation strategy

ABSTRACT

Firm innovation is embedded in a collaboration network among researchers and a knowledge network composed of knowledge elements; the two networks are decoupled. Guided by social network theory, this study puts forward the definition and the classification of firm dual network structure, probes into the influence of dual network structure on firm performance, and explores the alignment between innovation strategy and firm dual network structure. We conduct an empirical study of 183 listed companies in China from 2004 to 2018. It is found that the four types of dual network structure all have positive impacts on firm performance, and the impact of a collaboration network is slightly higher than that of a knowledge network. Besides, innovation strategy plays a positive moderating role in the relationship between dual network structure and firm performance. Our findings provide new ideas for firms to identify and optimise knowledge and collaboration network structures and match them with innovation strategy to improve performance.     

《经济地理》创刊以来的知识溢出特征与变化

基于引证关系,利用知识图谱、社会网络分析等方法,对1981—2019年《经济地理》创刊以来知识溢出的特征与变化规律进行分析。经济地理学研究的专业综合性、学科交叉性特点,在《经济地理》期刊知识溢出的特征与变化中得以充分诠释。期刊知识溢出的作用与变化,不仅体现在促进作者合作网络形成与机构合作关系的深化上,也体现在对城市化、区域经济发展、区域旅游发展等研究领域的推动作用与变化上。期刊知识溢出的特征与变化在其主题构成、作者贡献、机构力量与前沿引领等的探讨中进一步得以明确。具体地,城市化研究的知识溢出作用,从城市化和城镇化、土地利用、生态环境等方面,逐渐转向新型城镇化、城市网络、生态环境、协调发展等主题;区域经济发展研究的知识溢出作用,经历了从经济联系转向产业集群、再转向空间相互作用关系的主题变化;区域旅游发展研究的知识溢出作用,则从旅游资源、旅游业、生态旅游等方面,逐步转向乡村旅游、旅游经济与协调发展等主题。以国家战略与发展政策为主要导向,促进国内经济地理学的研究与发展,是《经济地理》期刊知识溢出的核心内容与集中反映。     

制度变迁下国有商业银行农村服务网络演化——以农业银行兰考县支行为例

经济转轨背景下农村的银行服务网络呈现出不同于城市的演化特征。从制度变迁角度建构分析框架,基于历史、调查与访谈数据,以农业银行兰考县支行为例,探讨我国商业银行农村服务网络演化动力机制。研究表明:国有商业银行农村服务网络经历了恢复成立后的快速扩张和密集的人工网点服务,市场化改革中农村业务收缩和大规模网点撤并,到新时期人工、自助、电子、代理等多元服务渠道扩张;农村银行服务网络演化是商业银行和制度环境相互作用的空间过程,普惠金融战略下我国特别强调金融服务的均等化和基础金融网点的全覆盖,商业银行不断借助新的伙伴关系开拓农村市场,其中合作代理日益发挥重要作用。不同地区、不同商业银行农村服务网络模式的差异,农村银行服务网络转型对农村社会经济发展、金融生态环境改善、农民金融素养提升的影响等还需进一步研究。     

基于数字足迹的乡村旅游流空间结构特征--以浙江省湖州市为例

乡村旅游是乡村振兴的有效路径,也是近年来研究热点,而在乡村旅游流领域研究相对不足。以湖州乡村旅游地为案例,通过对大样本数字足迹的数据处理,分析乡村旅游流空间结构特征,总结空间行为偏好。结果表明:①乡村旅游数字足迹呈现全年双峰值、月度差异不大的时间特征,"双核"多组团的空间分布特征,以及古镇、古村、民宿等带有文化符号旅游景观导向的空间偏好特征;②网络密度0.27的乡村旅游流空间结构由连接度高的34个节点构成,除核心吸引的双核外,民宿集聚区构成了网络结构的核心点;③传统旅游吸引物、民宿集聚区等节点呈现较强的网络中心性,节点的网络结构特征反映乡村旅游流空间呈现的地理临近性,以及区域空间集聚、扩散与联动发展效应。依据研究结论提出"完善与发挥节点集聚扩散功能,增强节点对数字足迹的有效吸引力,提升乡村旅游经济发展质量,助力乡村振兴"的发展策略。     

Uncovering the global network of economic policy uncertainty

This study uncovers the static and dynamic network of economic policy uncertainty (EPU) across 17 developed and emerging economies. We build a centrality network using the minimal spanning tree (MST) as well as a dependency network using partial correlations. Results from the MST show that EPU exhibits some degree of geographical connections with EPUs in seven countries in the sample directly linked to the US EPU. Evidence from dynamic time-varying MST reveals that the nature and dominance of the EPU network have changed significantly over time. Further, the US and German EPUs dominate a close-knit global policy uncertainty network with the highest net (To and From) transmitter of information flow in the dependency network. Greece, Russia, and Brazil are the top three net receivers of information in the global network of EPU. The policy implication of these results relates to the renewed and ongoing international debate on policy coordination.     

公民参与网络反腐的意愿及影响因素研究——基于武汉市调研数据的分析

文章运用Logistic回归模型,基于武汉市调研数据,从实践角度透视和思考公民参与网络反腐的意愿及影响因素。研究发现,大部分接受调研公民参与网络反腐的意愿较高;政府信任对公民参与网络反腐意愿的负向影响非常显著;年龄的负向影响比较显著;月收入的正向影响一般显著;性别、受教育程度和单位类别对其参与意愿的影响不显著。     

城市既有居住建筑绿色改造决策权配置研究

城市既有居住建筑绿色改造决策过程复杂烦琐、难度较大,明晰决策主体构成、合理配置决策权是实现决策有效性的关键着力点。利用2-模网络分析方法,从整体视角分析主要利益相关者对绿色改造项目的影响力,进而明确决策主体结构化组成;然后基于局部视角,以决策主体为权利载体实现决策权可视化,探明决策权在不同阶段、不同主体下的特征演变规律,提出决策权配置新思路。研究表明:社区自治组织、改造区域业主及政府部门构成决策核心主体;随着决策过程的推进,控制决策权由核心主体向决策参与主体发生动态转移和分散,从而使决策过程趋向民主、客观及合理化。基于上述研究结果,构建决策权配置框架,并提出针对性建议及措施以保证决策权有效实现。     

中国游客赴捷克自助游的旅游流网络结构特征

捷克作为“一带一路”境外路线中重要的节点,是中国游客的重要旅游目的地之一。利用火车头脚本编辑器采集中国游客赴捷克游记,利用Ucinet软件和Netdraw软件,选取程度中心性、接近中心性、中介中心性等指标对网络结构特征进行分析。结果发现:游客关注的景点与政府推荐的景点存在差异;核心景点具有空间聚集性;整体网络密度低,景点之间联结仍不充分,但具有社团属性;中国游客主要选取租车自驾,其次是大巴、火车等交通方式,捷克城市内部公共交通便利。     

国际研发合作对 全球价值链分工地位的影响 ——基于吸收能力的门槛效应

基于知识吸收能力的视角，从理论和实证上考察国际研发合作对全球价值链分工地位攀升的作用及其门槛变量的影响。研究结果表明：在控制其他变量的基础上，国际研发合作能够显著地促进全球价值链分工地位攀升。进一步地，国际研发合作对全球价值链分工地位的影响还要受到经济体吸收能力的影响，要素禀赋、金融发展、人力资本、研发能力及制度环境等吸收能力分项维度对国际研发合作与全球价值链分工地位之间的关系具有显著的门槛调节效应。在全球研发网络和全球产业价值链加速融合的背景下，研究结论对中国企业通过选择国际合作研发策略、嵌入全球研发创新网络、强化知识吸收能力以进一步提升企业国际竞争力具有重要的启示意义。     

How efficient airways act as role models and in what dimensions? A superefficiency DEA model enhanced by social network analysis

In this empirical study, a five-stage methodology is used to examine the efficiency of 45 worldwide known airline companies from the financial, operation and marketing perspectives. Initially, the superefficient data envelopment model is run with inputs and outputs that are selected based on the literature review. However, because 21 out of 45 airline companies are found to be efficient based on this analysis, a stepwise regression-based mechanism is applied to four reduced models – one for each output variable – for better discrimination. The outputs are, namely, net profit margin (financial output), passengers carried, on-time departure performance (operational outputs), and customer satisfaction (marketing output). In this way, the significant input variables are found for each reduced model. In the third stage, in order to provide even more discrimination, social network-based eigenvector centrality values are used as the weights of the superefficiency scores, and the strengths and weaknesses of efficient airlines for each output are specified in terms of their related significant inputs. The results show that, when net profit margin is taken as an output, Vietnam Airlines has the top weighted superefficiency value and excels in terms of available seat kilometers and liquidity, but it should improve its debt level. Although Norwegian Airlines has the highest efficiency with respect to debt level, it is not the best role model because its eigenvector centrality value is relatively low. However, Norwegian airlines also has the highest weighted superefficiency and acts as a role model in terms of on-time departures with respect to this output. Its main strength is liquidity, and it has no significant weaknesses. On the other hand, in terms of overall satisfaction and passengers carried, Vietnam Airlines and Thai Airways are the leaders, respectively. Vietnam Airlines is the only superefficient company with respect to overall satisfaction, while the basic strengths of Thai Airways in terms of passengers carried are its employee and fleet, and it has no significant weakness. A final aggregation of the results is made by making pairwise comparisons of the relative importance of four outputs for 7 experts selected from different departments of airline companies. According to the results, Net Profit Margin has the highest priority, followed by On-time Departure and Overall Customer Satisfaction, while passengers carried has the lowest importance. Based on these relative priorities, it can be said that Vietnam Airlines can be accepted as the top performing airline company, followed by Norwegian Airlines.