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Quantum dynamical resource theory under resource non-increasing framework
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作者 杨思忍 于长水 《Chinese Physics B》 SCIE EI CAS CSCD 2023年第4期184-192,共9页
We define the resource non-increasing(RNI)framework to study the dynamical resource theory.With this definition,we propose several potential quantification candidates under various free operation sets.For explicit dem... We define the resource non-increasing(RNI)framework to study the dynamical resource theory.With this definition,we propose several potential quantification candidates under various free operation sets.For explicit demonstrations,we quantify the quantum dynamical coherence in the scenarios with and without post-selective measurements.Correspondingly,we show that the maximally incoherent operations(MIO)and the incoherent operations(IO)in the static coherence resource theory are free in the sense of dynamical coherence.We also provide operational meanings for the measures by the quantum discrimination tasks.Moreover,for the dynamical total coherence,we also present convenient measures and give the analytic calculation for the amplitude damping channel. 展开更多
关键词 quantum resource theory quantum channels quantum coherence
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Test of Resource Competition Theory Between Microalga and Macroalga Under Phosphate Limitation 被引量:8
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作者 南春容 董双林 金秋 《Acta Botanica Sinica》 CSCD 2003年第3期282-288,共7页
Short_term batch cultures were used to measure the phosphate_dependent growth kinetics for a marine microalga, Tetraselmis subcordiformis (Wille) Hazen, and a marine macroalga, Ulva pertusa Kjellm. Results wer... Short_term batch cultures were used to measure the phosphate_dependent growth kinetics for a marine microalga, Tetraselmis subcordiformis (Wille) Hazen, and a marine macroalga, Ulva pertusa Kjellm. Results were fitted to the Monod model. U. pertusa had a lower half_saturation constant and maximum growth rate, which were 0.016 μmol/L and 0.16 d -1 respectively, while the growth kinetics of T. subcordiformis were 0.021 μmol/L and 0.83 d -1 . Long_term semicontinuous nutrient competition experiments were performed between T. subcordiformis and U. pertusa under phosphate limitation in laboratory. Loss rates were manipulated to get the same or different resource requirement values ( R * ) of the two species. Comparison between the theoretical predictions derived from Monod kinetics and the outcome of competition experiments indicated that the Monod model could predict the results only when the R * values of the two species were significantly different, and T. subcordiformis displaced U. pertusa when they had the same resource requirements. The Monod model can only partly predict the competition results between microalga and macroalga. 展开更多
关键词 MACROALGA MICROALGA Monod model PHOSPHATE resource competition theory R * _rule
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Oderly accumulation theory of shale system petroleum resource and its prospecting significance-A case study of Chang 7 Member of Yanchang Formation in Ordos Basin 被引量:5
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作者 Cui Jingwei Zhu Rukai +1 位作者 Li Shixiang Zhang Zhongyi 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第S1期265-266,共2页
1 Introduction Shale formations bear abundant mineral resource and*unconventional petroleum resource,and the unconventional petroleum resource that contain in the shale formation should be integrated and researched.
关键词 In Oderly accumulation theory of shale system petroleum resource and its prospecting significance-A case study of Chang 7 Member of Yanchang Formation in Ordos Basin
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Stages, Content, and Theory of Strategic Human Resource Management (SHRM): An Exploratory Study
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作者 Gurhan Uysal 《Journal of Modern Accounting and Auditing》 2014年第2期252-256,共5页
This study discusses "theory of strategic human resource management (HRM) has an impact on research topic of this study is to discuss SHRM resource management (SHRM)". Theory of SHRM is that human firm performan... This study discusses "theory of strategic human resource management (HRM) has an impact on research topic of this study is to discuss SHRM resource management (SHRM)". Theory of SHRM is that human firm performance through employee performance. Therefore, the theory. Research method is literature scanning. Research findings are, firstly, that strategic HRM can be defined with employee/firm performance relationship. Secondly, this study depicts its own SHRM model. In this model, HRM practices develop individual performance of employees in organizations, and individual performance increases performance of business departments, such as supply department, finance department, marketing department, logistics department, etc., and performance of business departments has an impact on firm performance. Furthermore, this study makes its SHRM definition. So far, there have been two definitions of SHRM in literature studies. The first definition identifies SHRM with corporate strategies and competitive advantage. The second definition describes SHRM with HRM-firm performance relationship. This study makes the third definition, namely, SHRM is employee/firm performance relationship, and this definition is figured in an SHRM model in this study. 展开更多
关键词 theory of strategic human resource management (SHRM) human resource management (HRM) employee performance firm performance
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RESEARCH ON THE THEORY AND METHODS OF COMPREHENSIVE EVALUATION OF REGIONAL COAL RESOURCES
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《石家庄经济学院学报》 1995年第S1期99-105,共7页
consists of forecasting for the total reserves of regional mineral resources and evaluation,compreIn general,based on evaluated objects and factors involved,evaluation of mineral resources hensive evaluation of region... consists of forecasting for the total reserves of regional mineral resources and evaluation,compreIn general,based on evaluated objects and factors involved,evaluation of mineral resources hensive evaluation of regional mineral resources, and economic and technical evaluation of deposits. Here a region can be a country, a province, or a mining area, while a deposit is mainly related to a single type of mineral, although it can contain more than one types of minerals. In the past, to assess mineral resources was primarily to evaluate and forecast the total reserves of regional mineral resources. With the advancement of science, technology, and economy, the evaluation of mineral resources has developed from forecasting the reserves of them to comprehensively evaluating them on the basis of numerous factors. 展开更多
关键词 RESEARCH ON THE theory AND METHODS OF COMPREHENSIVE EVALUATION OF REGIONAL COAL resourceS
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A family of quantum von Neumann architecture
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作者 王东升 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第8期56-61,共6页
We develop universal quantum computing models that form a family of quantum von Neumann architectures,with modular units of memory,control,CPU,and internet,besides input and output.This family contains three generatio... We develop universal quantum computing models that form a family of quantum von Neumann architectures,with modular units of memory,control,CPU,and internet,besides input and output.This family contains three generations characterized by dynamical quantum resource theory,and it also circumvents no-go theorems on quantum programming and control.Besides universality,such a family satisfies other desirable engineering requirements on system and algorithm design,such as modularity and programmability,hence serves as a unique approach to building universal quantum computers. 展开更多
关键词 von Neumann architecture quantum resource theory quantum computing
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HRM and Quantitatives: Decision Tree and Vector Analysis in HRM Theory 被引量:2
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作者 Gurhan Uysal 《Chinese Business Review》 2014年第6期382-387,共6页
Research topic of this paper is to discuss theory of Human Resources Management (HRM) and to discuss using of quantitative methods in HRM. Firstly, five variables establish HRM theory. They are HRM practices, positi... Research topic of this paper is to discuss theory of Human Resources Management (HRM) and to discuss using of quantitative methods in HRM. Firstly, five variables establish HRM theory. They are HRM practices, positive organizational behaviors, individual performance, performance of business departments, and firm performance. Transactions among those variables enable Human Resources (HR) practitioners to apply HRM theory in their organizations. Secondly, this paper discusses use of quantitative methods in HRM. They are vector analysis and decision tree analysis. Those analyses enable HR practitioners to make effective HR decisions. Decision tree sets HR alternatives to efficiently implement HRM practices in organizations. Research question is how HR practitioners apply quantitative methods in department of HRM in firms. Finally this research comes out a conclusion that quantitative methods may be used in HRM. 展开更多
关键词 Human resources Management (HRM) theory VECTORS matrice decision tree quantitative method
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Analyze the service outsourcing on the base of the modern economy theory 被引量:1
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作者 BAO Jian-bo WANG Shen-shen YANG Fan 《Chinese Business Review》 2008年第9期62-65,共4页
The paper provides information about the concept and the characteristics of the service outsourcing. It also analyzes the service outsourcing classification and the modem economy theory of the service outsourcing. Thr... The paper provides information about the concept and the characteristics of the service outsourcing. It also analyzes the service outsourcing classification and the modem economy theory of the service outsourcing. Through the analysis, we hope to provide the foundation for further study. 展开更多
关键词 service outsourcing core capacity theory transaction costs theory agency by agreement resource basis theory
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An Enhanced Spectrum Resource Allocation Algorithm in Hetnets
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作者 ZHAO Linjing ZHAO Huaying HUO Guangrui 《China Communications》 SCIE CSCD 2015年第10期182-192,共11页
Efficient spectrum resource allocation in wireless heterogeneous networks is important for improving the system throughput and guaranteeing the user's Quality-of-Service(QoS).In this paper,we propose an enhanced a... Efficient spectrum resource allocation in wireless heterogeneous networks is important for improving the system throughput and guaranteeing the user's Quality-of-Service(QoS).In this paper,we propose an enhanced algorithm for spectrum resource allocation in heterogeneous networks.First,the bandwidth of each user is determined by the user's rate demand and the channel state.Second,graph theory is enhanced and used to improve the spectrum efficiency.Third,spectrum resource is dynamically split between macrocell and femtocells with the changes of users' conditions.Our simulation results show that the proposed algorithm improves the system throughput significantly and also guarantees the fairness for the users. 展开更多
关键词 resource management heterogeneous networks graph theory throughput fairness
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Reduction in COVID-19 related resource loss and decline in prevalence of probable depression in Chinese adults:an application of the Conservation of Resource Theory
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作者 Yanqiu Yu Mason M.C.Lau Joseph T.F.Lau 《Infectious Diseases of Poverty》 SCIE CAS CSCD 2023年第2期116-116,共1页
Background The levels of resource losses due to coronavirus disease 2019(COVID-19)and mental distress may change during the pandemic period.Based on the Conservation of Resource(COR)Theory,this study investigated such... Background The levels of resource losses due to coronavirus disease 2019(COVID-19)and mental distress may change during the pandemic period.Based on the Conservation of Resource(COR)Theory,this study investigated such changes and the mediation between survey time(Round 2 versus Round 1)and depression via resource losses.Methods Two serial random population-based telephone surveys interviewed 209 and 458 Hong Kong Chinese adults in April 2020 and May 2021,respectively.Probable depression was defined as 9-item Patient Health Questionnaire(PHQ-9)score≥10.The validated Conservation of Resources Scale for COVID-19(CORS-COVID-19)scale was used to assess resource losses due to COVID-19.Multivariable logistic regression analysis,hierarchical logistic regression analysis,and structural equation modeling(SEM)was conducted to test the association,interaction,and mediation hypotheses,respectively.Results The prevalence of probable depression declined from 8.6%to 1.0%over time,together with reductions in losses of financial resource(Cohen’s d=0.88),future control(Cohen’s d=0.39),social resource(Cohen’s d=0.60),and family resource(Cohen’s d=0.36)due to COVID-19.All the overall scale/subscales of the CORS-COVID-19 were positively and associated with probable depression[adjusted odds ratio(aOR)ranged from 2.72 to 42.30].In SEM,the survey time was negatively associated with the latent variable of resource loss(β=−0.46),which in turn was positively associated with probable depression(β=0.73).In addition,the direct effect of survey time on probable depression was statistically non-significant(β=−0.08),indicating a full mediation effect of resource losses.Conclusions The lessening of the resource losses might have fully accounted for the significant decline in probable depression from Month 3 to 15 since the first COVID-19 outbreak in Hong Kong,China.The level of depression might have increased during the first phase of the pandemic,but might decline in the later phases if resources losses could be lessened.All stakeholders should hence work together to minimize individuals’COVID-19-related resource losses to prevent depression in the general population,as COVID-19 might be lasting. 展开更多
关键词 DEPRESSION resource loss COVID-19 Conservation of resource theory Serial cross-sectional study
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Impacts of building information modeling(BIM) implementation on design and construction performance: a resource dependence theory perspective 被引量:4
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作者 Dongping CAO Heng LI Guangbin WANG 《Frontiers of Engineering Management》 2017年第1期20-34,共15页
Drawing on resource dependence theory, this paper develops and empirically tests a model for understanding how the implementation of building information modeling(BIM) in construction projects impacts the performance ... Drawing on resource dependence theory, this paper develops and empirically tests a model for understanding how the implementation of building information modeling(BIM) in construction projects impacts the performance of different project participating organizations through improving their interorganizational collaboration capabilities. Based on two sets of survey data collected from designers and general contractors in BIMbased construction projects in China, the results from partial least squares analysis and bootstrapping mediation test provide clear evidence that BIM-enabled capabilities of information sharing and collaborative decision-making as a whole play a significant role in determining BIMenabled efficiency and effectiveness benefits for both designers and general contractors. The results further reveal that designers and general contractors benefit from project BIM implementation activities significantly nonequivalently, and that this non-equivalence closely relates to the different roles played by designers and general contractors in BIM-enabled interorganizational resource exchange processes. The findings validate the resource dependence theory perspective of BIM as a boundary spanning tool to manage interorganizational resource dependence in construction projects, and contribute todeepened understandings of how and why project participating organizations benefit differently from the implementation of interorganizational information technologies like BIM. 展开更多
关键词 building information modeling interorganizational collaboration construction project performance resource dependence theory partial least squares modeling
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Quantifying entanglement in terms of an operational way
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作者 Deng-Hui Yu Chang-Shui Yu 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第2期185-189,共5页
We establish entanglement monotones in terms of an operational approach,which is closely connected with the state conversion from pure states to the objective state by the local operations and classical communications... We establish entanglement monotones in terms of an operational approach,which is closely connected with the state conversion from pure states to the objective state by the local operations and classical communications.It is shown that any good entanglement quantifier defined on pure states can induce an entanglement monotone for all density matrices.Particularly,we show that our entanglement monotone is the maximal one among all those having the same form for pure states.In some special cases,our proposed entanglement monotones turn to be equivalent to the convex roof construction,which hence gain an operational meaning.Some examples are given to demonstrate different cases. 展开更多
关键词 quantum entanglement entanglement measure quantum resource theory
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Be Called and Be Healthier:How Does Calling Influence Employees’Anxiety and Depression in the Workplace?
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作者 Wenyuan Jin Jialing Miao Yuanfang Zhan 《International Journal of Mental Health Promotion》 2022年第1期1-12,共12页
Despite limited studies have found the negative relationships between calling and mental health symptoms,its underlying mechanism is still unknown.Drawing on the conservation of resources theory(COR),this study develo... Despite limited studies have found the negative relationships between calling and mental health symptoms,its underlying mechanism is still unknown.Drawing on the conservation of resources theory(COR),this study developed the resources model that explains the relationships between career calling,anxiety and depression,and the underlying mechanism.With a sample of 628 employees from the two-wave survey,the theorized model was tested.The results showed that career calling was able to decrease the levels of employees’anxiety and depression,and two important resources(i.e.,personal growth,and meaningful work)provided explanatory mechanisms for the relationships.The findings highlight the importance of spirituality in the workplace.Theoretical and practical implications are discussed. 展开更多
关键词 Career calling ANXIETY depression personal growth meaningful work conservation of resources theory
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The Role of Sports Diplomacy in Advancing Environmental Security in Africa: Case of Forest Conservation in Kenya
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作者 Benjamin Mutuku Kinyili Shazia Chaudhry 《International Relations and Diplomacy》 2021年第5期199-210,共12页
Environmental security remains a key challenge in the late 19th through to the 21st century,whose solution has attracted a number of initiatives.Sports diplomacy has achieved great strides in achieving international,r... Environmental security remains a key challenge in the late 19th through to the 21st century,whose solution has attracted a number of initiatives.Sports diplomacy has achieved great strides in achieving international,regional,and local unity.However,the use of sports diplomacy in achieving environmental security has received much less research attention.This research examines the role of sports in diplomacy in achieving environmental security in Kenya.This study was anchored on the soft power theory and Conservation of Resources(COR)theory which offer frameworks for explaining the role of sports diplomacy in advancing environmental security.The study adopted exploratory research design.The target population was diplomats,marathoners,coaches,environmentalists,conservationists and government officials,academia as well as Water Resources Authority(WRA).The primary data were obtained through open and closed structured questionnaire.The collected data were analyzed through the use of frequency distribution,and thematic analysis.The study established that sports diplomacy advanced environmental security in Kenya,which was better for athletics and volleyball.Environmental security was also enhanced through training,sensitization,conservation efforts,and environmental education.Sport events also allowed a contact-platform for interaction between various groups involved in environment and forest conservation.This study recommends that sports diplomacy should be used in most of the regions in Kenya experiencing environmental perturbations and the current strategies should be applied in the sports diplomacy and environmental conservation as well as security.Further,the government is also encouraged to appoint more sports ambassadors with proper environmental knowledge to help in environmental management.The role of academicians in sports diplomacy and environmental security was found to be minimal where academicians should be at the forefront as the 21st century diplomats are incorporated into sports to be local ambassadors.Perceiving the significance of sports diplomacy and environmental security,there is need for coordination between various county governments to coordinate their efforts and in the process they should bring on board even the non sports actors to boost the role of sports in diplomacy and environment. 展开更多
关键词 sports diplomacy environmental security forest conservation soft power theory Conservation of resources(COR)theory
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Environmental, social, and governance performance and corporate innovation novelty
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作者 Wanyi Chen Yuchuan Xie Kang He 《International Journal of Innovation Studies》 2024年第2期109-131,共23页
Environmental,social,and governance(ESG)performance,along with the novelty of innovation,are significant factors in promoting sustainable development for corporations.This study employs the Heckman two-stage model to ... Environmental,social,and governance(ESG)performance,along with the novelty of innovation,are significant factors in promoting sustainable development for corporations.This study employs the Heckman two-stage model to examine the impact of ESG performance on innovation novelty using a dataset comprising A-share listed companies in the Shanghai and Shenzhen Stock Ex-changes from 2011 to 2020.The results indicate that enhanced ESG performance significantly fosters innovation by expanding innovation resources and mitigating agency problems.Further analysis reveals that this relationship is more pronounced under high economic policy uncer-tainty,a challenging information environment,elevated financing constraints,and in the context of digital transformation.This study not only expands the research on the economic implications of ESG performance for enterprise innovation behavior but also places a distinct emphasis on innovation quality rather than quantity.Additionally,this study enriches the existing literature on the factors influencing innovation novelty and extends research into the link between envi-ronmental protection and firm innovation,particularly from the perspective of stakeholder the-ory.Furthermore,this study holds practical significance for governments aiming to enhance ESG evaluation systems and establish guiding policies that encourage novel innovations,ultimately contributing to sustainable and high-quality development.Simultaneously,this study provides guidance to enterprises by encouraging them to embrace green development,improve social responsibility,and elevate their governance standards to promote innovation quality. 展开更多
关键词 ESG Innovation novelty resource dependence theory Agency problem Innovation quality Sustainable development
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Maximum relative entropy of coherence for quantum channels 被引量:2
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作者 Zhi-Xiang Jin Long-Mei Yang +4 位作者 Shao-Ming Fei Xianqing Li-Jost Zhi-Xi Wang Gui-Lu Long Cong-Feng Qiao 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2021年第8期1-6,共6页
Based on the resource theory for quantifying the coherence of quantum channels, we introduce a new coherence quantifier for quantum channels via maximum relative entropy. We prove that the maximum relative entropy for... Based on the resource theory for quantifying the coherence of quantum channels, we introduce a new coherence quantifier for quantum channels via maximum relative entropy. We prove that the maximum relative entropy for coherence of quantum channels is directly related to the maximally coherent channels under a particular class of superoperations, which results in an operational interpretation of the maximum relative entropy for coherence of quantum channels. We also introduce the conception of subsuperchannels and sub-superchannel discrimination. For any quantum channels, we show that the advantage of quantum channels in sub-superchannel discrimination can be exactly characterized by the maximum relative entropy of coherence for quantum channels. Similar to the maximum relative entropy of coherence for channels, the robustness of coherence for quantum channels has also been investigated. We show that the maximum relative entropy of coherence for channels provides new operational interpretations of robustness of coherence for quantum channels and illustrates the equivalence of the dephasing-covariant superchannels,incoherent superchannels, and strictly incoherent superchannels in these two operational tasks. 展开更多
关键词 maximum relative entropy quantum channels quantum coherence resource theory
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How does the servant supervisor influence the employability of postgraduates?Exploring the mechanisms of self-efficacy and academic engagement 被引量:1
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作者 Lifeng Zhong Zhichao Qian Dongdong Wang 《Frontiers of Business Research in China》 2020年第2期217-236,共20页
Drawing on the conservation of resource theory,this study investigates the mediating effects of self-efficacy and academic engagement in the relationship between servant supervision and postgraduates'employability... Drawing on the conservation of resource theory,this study investigates the mediating effects of self-efficacy and academic engagement in the relationship between servant supervision and postgraduates'employability.We conducted a field study with 598 postgraduates(students for the research-based master's degree and PhD candidates)enrolled in universities in China to test our hypotheses.We developed and tested a model contending that servant supervisors propagate servant supervision among postgraduates through postgraduates'slfefficacy and academic engagement,which indirectly influences postgraduates'employability.The results support the mediating effects of both slfefficacy and academic engagement on the relationship between servant supervision and postgraduates'employability.Finally,the theoretical and prac tical implications are discussed. 展开更多
关键词 Servant superision slfefficacy Academic engagement Employabiliy Conservation of resource theory POSTGRADUATES LEADERSHIP
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Work-family conflict and organizational citizenship behavior: the role of job satisfaction and decision authority 被引量:1
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作者 Kun Yu Zhen Wang Youhuang Huang 《Frontiers of Business Research in China》 2018年第3期264-276,共13页
Drawing upon the conservation of resources theory (Hobfoll, Am Psychol 44:513- 524, 1989), social exchange theory (Blau, Exchange and power in social life, 1964) and the job demand-control model (Karasek, Adm Sc... Drawing upon the conservation of resources theory (Hobfoll, Am Psychol 44:513- 524, 1989), social exchange theory (Blau, Exchange and power in social life, 1964) and the job demand-control model (Karasek, Adm Sci Q 24:285-308, 1979), this study uncovers the theoretical mechanism that explains the relationship between work- family conflict and organizational citizenship behavior (OCB). First, this study focuses on how employee job satisfaction mediates the relationship. Then, we investigate the moderating role of decision authority in, the mediated relationsip. We employ three-wave data collected from 324 employees in 102 teams to test our hypotheses. Aesults of hierarchical linear modeling (HLM) first shows that job satisfaction mediates the relationship between work interference with family (WIF) and OCB. In addition, employees' decision authority moderates the direct effect of WlF on OCB. Specifically, the negative relationship between WlF and OCB is stronger when employees' decision authority is high. Moreover, decision authority moderates the indirect effect of WIF on OCB via job satisfaction. Specifically, the negative relationship between WlE and job satisfaction is weaker when employees' decision authority is high. The results suggest that organizations should give employees enough decision authority over their work, as a high level of decision authority may act as a double-edged sword regarding critical organizational outcomes. 展开更多
关键词 Work-family conflict Work interference with family Organizationalcitizenship behavior Social exchange theory Conservation of resources theory Jobdemand-control model
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Quantifying quantum correlation via quantum coherence
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作者 Guang-Yong Zhou Lin-Jian Huang +2 位作者 Jun-Ya Pan Li-Yun Hu Jie-Hui Huang 《Frontiers of physics》 SCIE CSCD 2018年第4期285-290,共6页
Resource theory is applied to quantify the quantum correlation of a bipartite state and a computable measure is proposed. Since this measure is based on quantum coherence, we present another possible physical meaning ... Resource theory is applied to quantify the quantum correlation of a bipartite state and a computable measure is proposed. Since this measure is based on quantum coherence, we present another possible physical meaning for quantum correlation, i.e., the minimum quantum coherence achieved under local unitary transformations. This measure satisfies the basic requirements for quantifying quantum cor- relation and coincides with concurrence for pure states. Since no optimization is involved in the final definition, this measure is easy to compute irrespective of the Hilbert space dimension of the bipartite state. 展开更多
关键词 resource theory quantum correlation quantum coherence
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Resignation of officials as independent directors and firm performance
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作者 Ting Ren Youzhi Xiao +2 位作者 Xinguo Yu Hongyan Yang Jianmei Ge 《Frontiers of Business Research in China》 2020年第4期498-518,共21页
In 2013,the Chinese government implemented Rule No.18,which suspended the directorships of incumbent government officials and precluded those who retired within the past three years from serving as independent directo... In 2013,the Chinese government implemented Rule No.18,which suspended the directorships of incumbent government officials and precluded those who retired within the past three years from serving as independent directors for listed firms.The surprise implementation of Rule No.18 triggered a wave of resignations among official independent directors(OIDs).The event provided a unique opportunity to examine the impacts of the political connections of board members on firm performance.We applied a difference-in-difference technique to empirically investigate the effect of OID resignations on firm performance from the perspectives of resource dependence theory and social capital theory.The results indicate that the resignation of OIDs had a significantly negative effect on firm performance,as measured by Tobin's 0 and firm leverage.This also confirmed the importance of independent directors'political connection on firm performance,as discovered in prior research.However,this influence varied across OIDs'heterogeneity,external environment and firm ownership.The results indicate that political connections may not be necessary channels for firms to achieve success. 展开更多
关键词 Firm performance Independent director Political connection resource dependence theory Social capital theory
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