Xifang Ma, Wan Jiang, Linlin Wang and Jing Xiong
This study examined a curvilinear and moderated relationship between transformational leadership and employee creative performance in a real-world setting by drawing from the…
Abstract
Purpose
This study examined a curvilinear and moderated relationship between transformational leadership and employee creative performance in a real-world setting by drawing from the too-much-of-a-good-thing effect and the substitutes for leadership perspectives.
Design/methodology/approach
We used multisource data collected from 232 employees and their immediate supervisors to test all hypotheses.
Findings
We found empirical support for an inverted U-shaped relationship between transformational leadership and employee creative performance. Moreover, job factor (i.e. job formalization) and individual differences (i.e. power distance) moderated the curvilinear relationship, such that the curvilinear relationship was more pronounced with lower job formalization or higher power distance of employees.
Originality/value
Our findings shed light on the inconsistent reports of transformational leadership's effects on employee creativity in previous studies. We extended substitutes for leadership perspective by providing a more systematic view for future research on how leadership and its substitutes jointly influence employee outcomes.
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Jing Sun, Jiandong Tian, Yingkui Du and Yandong Tang
Shadows, the common phenomena in most outdoor scenes, bring many problems in practical image processing. Shadow detection and removal, especial in uncalibrated outdoor image, is…
Abstract
Purpose
Shadows, the common phenomena in most outdoor scenes, bring many problems in practical image processing. Shadow detection and removal, especial in uncalibrated outdoor image, is still a difficult problem. The purpose of this paper is to detect and to remove shadows in single outdoor image based on retinex theory.
Design/methodology/approach
The shadow extraction algorithm originates from a simple idea that the human‐vision‐based retinex has the natural ability to enhance the shadow regions of an image no matter it is penumbrae or umbrae. Shadows are detected by comparing the retinex‐enhanced images with original images in the paper. The shadow removal algorithm in the paper deals with the shadow regions and non‐shadow regions in the images separately using the retinex enhancement algorithm. Through adding smooth light forcibly to shadow edges and introducing shadow edge masks, the authors reduce the effects of shadow edges in shadow removal processing.
Findings
Some real single outdoor images with the umbra regions and those with penumbra regions are both experimented in the paper. Experimental results validate the feasibility of the approach.
Originality/value
The approach proposed here does not use any special prior knowledge and assumptions. The feasibility of this method is testified for detecting and removing both penumbrae and umbrae in the outdoor images.
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Yanzhi Wang, Hongliang Lu and Dahai Wang
The topic of impulsive buying has been studied by researchers for nearly 70 years and made a large number of valuable discoveries. However, most of the existing research studies…
Abstract
Purpose
The topic of impulsive buying has been studied by researchers for nearly 70 years and made a large number of valuable discoveries. However, most of the existing research studies focused on the impulse buying behavior in the context of single person shopping from the perspective of individuals and lack of research on impulse buying behavior in the context of shopping with others from the perspective of communities. Given that consumers' decision-making in the presence of others is significantly different from that when they are alone, it is necessary to probe into the internal mechanism of impulse purchase behavior in the context of shopping with others.
Design/methodology/approach
In total three experiments were used to test the hypothesis. Study 1 examines the differences in the motivation of impulsive desire among consumers with different impulsive traits. A total of 240 undergraduates were recruited to participate in the study. The purpose of study 2 is to examine the effect of external attribution on consumer guilt, which leads to the failure of self-control. A total of 256 undergraduate students participated in the study 2. The purpose of study 3 was to test the moderating effect of the intensity of ties on the impact of goal on impulse purchase intention. A total of 240 subjects participated in study 3.
Findings
When shopping with companions, consumers with different impulse traits have different initial impulses in the face of temptation, but they may have a similar higher willingness to buy on impulse. There are two reasons: on the one hand, consumers with high-impulsive traits produce a higher desire to buy on impulse driven by hedonistic motivation. In contrast, consumers with low-impulse traits will also have a higher impulse purchase desire driven by prosocial motivation. On the other hand, external attribution can lead to the failure of self-control and impulse purchase behavior. However, the above effects only occur when there is a strong connection between consumers.
Research limitations/implications
First, this paper simulates the phenomenon of impulse purchase in the relational situation through experimental methods; if the research based on the real consumption scenario can be carried out, the research results will be more convincing. Second, whether there are other intermediary mechanisms, such as whether external attribution can affect consumers' self-control through perceived social support, need to be further tested. Finally, it is also necessary to examine the role of other regulatory variables, such as consumers' sense of power, the type of self-construct, etc., and these research clues will further enrich the research on impulsive buying in the context of relationship.
Practical implications
First, businesses can launch more accurate marketing strategies for consumers who are shopping together, find ways to reduce consumers' attention to their own responsibility or fault and guide them to conduct external attribution to their impulsive consumption behavior. The findings also have implications for consumers to control their own impulse purchase behavior. In addition, the results of this study can provide new insights into the government to prevent social crisis and carry out consumer education.
Originality/value
The key contribution of the current research is that, unlike existing studies that focus on the exploration of impulsive buying in the context of single person shopping, this study explores the internal mechanism and causal process on how consumers' impulsive buying behavior occurs when shopping with others. The authors further make a contribution to a self-control theory by demonstrating that external attribution has a negative effect on self-control in relational situations. Finally, this study also finds that the intensity of ties can moderate the impacts of focus goals on impulsive buying behavior.
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Abstract
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Sifeng Liu, Yingjie Yang, Ying Cao and Naiming Xie
The purpose of this paper is to review systematically the research of grey relation analysis (GRA) models.
Abstract
Purpose
The purpose of this paper is to review systematically the research of grey relation analysis (GRA) models.
Design/methodology/approach
Three different approaches, the springboard to build a GRA model, the angle of view in modelling, and the dimension of objects, are analysed, respectively.
Findings
The GRA models developed from the models based on relation coefficients of each point in the sequences in early days to the generalized GRA models based on integral or overall perspective. It evolved from the GRA models which measure similarity based on nearness, into the models which consider similarity and nearness, respectively. The objects of the research advanced from the analysis of relationship among curves to that among curved surfaces, and further to the analysis of relationship in three‐dimensional space and even the relationship among super surfaces in n‐dimensional space.
Originality/value
The further research on GRA models is proposed. One is about the property of GRA model. An in‐depth knowledge about the properties of GRA model will help people to understand its function, applicable area and requirements for modelling. The other one is about the extension of research object system. The object to be analysed should be extended from the common sequence of real numbers to grey numbers, vectors, matrices, and even multi‐dimensional matrices, etc.
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Neetu Yadav and
The purpose of this paper is to develop a total interpretive structural modelling (TSIM) of strategic factors related to performance management in the context of Indian Telecom…
Abstract
Purpose
The purpose of this paper is to develop a total interpretive structural modelling (TSIM) of strategic factors related to performance management in the context of Indian Telecom Service Providers taking dual perspectives in account, i.e. enterprise perspective and subscribers’ perspective.
Design/methodology/approach
An evolving performance management framework, i.e. flexible strategy game-card has been taken as the basis to develop the strategic performance management model, where strategic factors have been identified through thematic content analysis and the hierarchical structure of factors has been developed using TISM.
Findings
Two total interpretive structural models have been developed, one for enterprise-related strategic factors, and another for subscriber-related strategic factors. These hierarchical structures portray the leading and lagging factors of performance, and showcase that financial performance indicators are the lagging indicators.
Research limitations/implications
This study has implications for both practitioners and academics. For practitioners, it provides an indicative list of strategic factors relevant for Indian telecom companies, which drive better financial results as well as a list of strategic factors that subscribers consider while assessing the performance of telecom operators. For academics, the methodology used provides a mechanism to conduct an exploratory study by identifying the variables of interest and highlighting their interactions through hierarchical structures.
Originality/value
The proposed strategic performance management models developed through qualitative modelling technique is a new effort altogether in the context of Indian telecom operators’. Capturing subscribers’ perspective of firm's performance is neglected in existing performance management literature, and this study makes a contribution in this regard.
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The purpose of this paper is to develop a directional and roll control system for unmanned combat air vehicle (UCAV) automatic takeoff roll, with the objective of keeping the UCAV…
Abstract
Purpose
The purpose of this paper is to develop a directional and roll control system for unmanned combat air vehicle (UCAV) automatic takeoff roll, with the objective of keeping the UCAV along the runway centerline and keeping the wings level, especially when there is a crosswind.
Design/methodology/approach
The nonlinear model of the UCAV during takeoff roll is established. The model is linearized about the lateral‐directional equilibrium point at different forward speeds. The approximate directional model and roll model are extracted using time‐scale decomposition technique. Then the directional control law and roll control law are developed using gain scheduling approach. Nose wheel steering, differential brake and rudder are used as the primary directional control device at low, medium and high speeds, respectively, according to both the qualitative and quantitative analysis of their control effectiveness at different speeds. A priority matrix is developed to determine the secondary control device which is used if the primary control device fails, thus the directional control system can have a certain degree of fault tolerance.
Findings
This work developed the directional control law and roll control law by using gain scheduling approach. Experimental results verified that the developed directional and roll control system has high robustness and satisfactory fault tolerance: it can guarantee a safe takeoff under a 50 ft/sec crosswind, even if one directional control device fails, which satisfies the relevant criteria in MIL‐HDBK‐1797.
Practical implications
The directional and roll control system developed can be easily applied to practice and can steer the UCAV during takeoff roll safely, which will considerably increase the autonomy of the UCAV.
Originality/value
The paper shows how time‐scale decomposition technique is employed to extract the approximate directional model and roll model, which simplifies model analysis and control law design. A fault‐tolerant directional control system is designed to improve safety during takeoff.
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Wealth and political power are heavily concentrated in these regions. However, megacity clusters face major challenges of sustainability and resource management. They are testing…
Details
DOI: 10.1108/OXAN-DB281282
ISSN: 2633-304X
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Geographic
Topical
Sichu Xiong, Antony Paulraj, Jing Dai and Chandra Ade Irawan
Firms are increasingly digitalizing their business processes and expanding them into digital platforms, which are believed to generate digital and relational resources that can…
Abstract
Purpose
Firms are increasingly digitalizing their business processes and expanding them into digital platforms, which are believed to generate digital and relational resources that can facilitate and deliver innovations for firms. Instead of focusing on the extent of digital integration capability (DI), this paper seeks to empirically evaluate whether the DI asymmetry between the buyer and supplier firms influences bilateral information sharing and the buyer’s product innovation. We also examine the moderating effects of firms’ external (environmental dynamism) and internal (innovative climate) environments on these relationships.
Design/methodology/approach
Primary and secondary archival data on 180 buyer-supplier Chinese dyadic relationships were collected and analyzed using multiple linear regression models. Additionally, the Process macro was used to shed a nuanced light on the moderation effects of environmental dynamism and innovative climate.
Findings
The results show that DI asymmetry negatively impacts buyer firms’ product innovation through decreased information sharing. Environmental dynamism weakens the negative relationship between DI asymmetry and information sharing. Meanwhile, the innovative climate negatively moderates the relationship between information sharing and product innovation.
Originality/value
This study adds knowledge to the literature regarding the dark side of “one-sided digitalization.” By exploring the influences of unbalanced DI in buyer-supplier relationships, this study yields essential theoretical and managerial implications for product innovation success in a digital era.
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The Xiong'an New Area project.