Thanh D. Nguyen, Thi H. Cao, Tuan M. Nguyen and Tuan T. Nguyen
This literature review aims to explore the various aspects of psychological capital (PsyCap), including its theoretical foundations, measurement methods, and the factors directly…
Abstract
Purpose
This literature review aims to explore the various aspects of psychological capital (PsyCap), including its theoretical foundations, measurement methods, and the factors directly associated with PsyCap.
Design/methodology/approach
The approach employed in this study is scientific document synthesis, with a specific emphasis on scholarly articles published between 2001 and 2023. The selection of articles is limited to those published in internationally renowned journals that are indexed by reputable databases, including ISI (WoS) and SJR (Scopus).
Findings
Psychological capital is closely linked to other concepts at different levels. Scholars are investigating various factors associated with PsyCap, including health, project success, service marketing, banking services. It is important to note that different research areas have varying conceptualizations and scales when it comes to PsyCap.
Originality/value
This literature review of related studies reveals a growing global interest among researchers in the concept of positive psychological capital. The research results have shown significant interest in the items related to PsyCap, and and the factors directly associated with it, including antecedents, mediators, moderators, and outcomes.
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Minh Van Nguyen, Khanh Duy Ha and Chien Thanh Phan
Reconstruction of old buildings is often necessary after prolonged usage, but these projects encounter various complexities, leading to their failure. However, there is a lack of…
Abstract
Purpose
Reconstruction of old buildings is often necessary after prolonged usage, but these projects encounter various complexities, leading to their failure. However, there is a lack of studies that focus on investigating the complexity of old building reconstruction initiatives. Thus, this study aims to examine the complexity of reconstruction projects for old buildings in Vietnamese urban areas.
Design/methodology/approach
Through a literature review and discussions with experienced practitioners, 12 significant complexity factors were identified. The study then utilized the fuzzy decision-making trial and evaluation laboratory (DEMATEL) technique to analyze the interrelationships among these complexity factors.
Findings
The findings revealed intricate interdependencies among the complexity factors, visualized in a complexity map. The map highlighted the critical complexities of site compensation, clearance and the long project duration. Furthermore, a causal diagram categorized the complexity factors into net-effect and net-cause groups.
Originality/value
By examining the relationships and interactions among these factors, the study emphasizes the interconnected nature of complex systems and the influence of one factor on others. Therefore, decision-makers and stakeholders involved in reconstructing old buildings are suggested to possess a comprehensive understanding of these interdependencies to ensure effective decision-making.
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Ruxiang Zhao, Nanping Feng, Fenfen Wei and Youying Wang
Knowledge sharing (KS) among employees is critical to successfully developing complex products and systems (CoPS) but is often hampered by employees’ low motivations. The purpose…
Abstract
Purpose
Knowledge sharing (KS) among employees is critical to successfully developing complex products and systems (CoPS) but is often hampered by employees’ low motivations. The purpose of this study is to investigate how extrinsic and intrinsic rewards influence employees’ explicit knowledge sharing (EKS) and tacit knowledge sharing (TKS) in the CoPS development context. This study also examines the moderating effects of transformational leadership on the relationships between two types of rewards and two types of KS.
Design/methodology/approach
This study builds a research model based on expectancy value theory and Maslow’s hierarchy of needs. To test hypotheses, the authors surveyed 257 employees in CoPS projects and analyzed data with the partial least squares structural equation modeling and hierarchical linear modeling.
Findings
The results of this study demonstrate that extrinsic rewards exert no effect on EKS but negatively affect TKS, while intrinsic rewards significantly promote both EKS and TKS. Moreover, transformational leadership positively moderates the abovementioned relationships.
Originality/value
This study extends the research scenario of KS motivations and responds to the call for shedding light on contextual factors influencing KS. This study also offers a comprehensive theoretical perspective to understand KS motivations. Practically, this study provides managers with suggestions about how to use different rewards to encourage different KS practices.
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Muhammad Ashraf Fauzi, Mai Nguyen and Ashish Malik
The purpose of this study is to review the role of knowledge-sharing and its association with the Theory of Planned Behavior (TPB). TPB is the most used theory in understanding…
Abstract
Purpose
The purpose of this study is to review the role of knowledge-sharing and its association with the Theory of Planned Behavior (TPB). TPB is the most used theory in understanding knowledge-sharing behavior in many contexts.
Design/methodology/approach
Based on the bibliometric approach, this study extracted and analyzed 229 journal articles on the Web of Science. In addition, two analyses (bibliographic coupling and co-word) were performed to provide science mapping in presenting the knowledge structure on the present and future research direction on knowledge-sharing and TPB.
Findings
The findings of this study suggest that two stand-out clusters are determinants and antecedents of knowledge-sharing behavior based on TPB and the role of the virtual platform and social media in facilitating knowledge-sharing among users.
Research limitations/implications
This study will benefit researchers and scholars in studying individual behavioral traits underpinning TPB in achieving organizational excellence.
Originality/value
This study extends the findings of the previous review because of their limitations on methods. This study confirms the determinants of knowledge-sharing intention and behavior. However, this study suggests integrating TPB with other theories to provide more insights into knowledge-sharing behavior and use online and technology-based platforms to facilitate knowledge-sharing behavior.
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Nhi Yen Nguyen, Hao Gia Tran, Dang Thanh Tra, Nhung Tuyet Le and Hien Thi Thuy Nguyen
This study aims to combine two theories, the Theory of Planned Behaviour (TPB) and the Norm Activation Model (NAM), to investigate the relationship between the awareness of…
Abstract
Purpose
This study aims to combine two theories, the Theory of Planned Behaviour (TPB) and the Norm Activation Model (NAM), to investigate the relationship between the awareness of reducing single-use plastic waste's environmental cost and the behaviour to limit the use of single-use plastic products (SUPPs) by FPT university students.
Design/methodology/approach
Quantitative research methodologies were employed on a sample of 506 university students. The survey data was then examined using SPSS, SPSS AMOS and SmartPLS software.
Findings
The overarching conclusion of the study is that awareness of reducing single-use plastic waste's environmental cost has a positive impact on FPT university students' behaviour to reduce their use of single-use plastic products. Another intriguing discovery is how socialisation of responsibility affects pro-environmental behaviour through the interplay between personal norms, subjective norms and behavioural intention.
Originality/value
This study on the relationship between SUPP low-consumption awareness and behaviour and mediating factors is a necessary foundation for future studies related to changing the behaviour of students using SUPPs. That will also be a solid foundation for practical plans to change behaviour using SUPPs through communication campaigns to increase awareness.
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Yuk Ling Angie Lee, Ashish Malik, Philip J. Rosenberger III and Piyush Sharma
This paper aims to investigate the differences in the mediating roles of trust and knowledge sharing (formal vs informal) in the process by which training and incentives influence…
Abstract
Purpose
This paper aims to investigate the differences in the mediating roles of trust and knowledge sharing (formal vs informal) in the process by which training and incentives influence organizational performance (sales increase and labor productivity).
Design/methodology/approach
The data from an online survey of Senior Managers from 119 firms in Hong Kong’s clothing industry (HKCI) was analyzed using SmartPLS software.
Findings
Trust has a stronger mediating impact in the effects of incentives (vs training) on both formal and informal knowledge sharing. Informal (vs formal) knowledge sharing has a stronger mediating impact in the effects of trust on sales increase and labor productivity.
Research limitations/implications
Future research may consider different dimensions such as knowledge donating and collecting behaviors, as well as motives, such as self-enjoyment, reciprocity or social interaction ties to study knowledge sharing behavior.
Practical implications
This study shows that incentives are more likely than training to help build a trusting environment in an organization and that informal knowledge sharing has a stronger influence on organizational performance than formal knowledge sharing.
Originality/value
The study’s distinctive contribution is the under-researched context of HKCI for investigating the mediating effects of trust and formal and informal knowledge sharing between ability and motivational practices on performance.
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Huu Minh Nguyen, Thi Hong Tran and Thi Thanh Loan Tran
“The world needs science, science needs women” is the message given by UNESCO in the program for the development of women in science” (UNESCO, 2017). In Vietnam, women’s…
Abstract
“The world needs science, science needs women” is the message given by UNESCO in the program for the development of women in science” (UNESCO, 2017). In Vietnam, women’s participation and achievements in scientific research is considered a great and important resource for industrialization and modernization. Even so, are there gender differences in scientific achievement in the social science research institutes in Vietnam? What factors influence the scientific achievement of female social researchers? The answers will be based on data from a 2017 survey with a sample of 756 researchers, of which 77.6% were female. The survey was conducted by the Vietnam Academy of Social Sciences, a leading, ministry-level national center for the social sciences in Vietnam. This chapter analyzed the scientific achievements of researchers through their position as principal investigators of research projects and their publications, and factors that may impact this. Bivariate and multivariate analyses of factors that may affect the scientific achievement of researchers found that gender differences in academic achievement in the social sciences in Vietnam was still prevalent. Female researchers’ scientific achievements were lower than those of their male counterparts. The contribution to science of Vietnamese female researchers was limited by many different factors; the most important were the academic rank of the researchers and gender stereotype that considered housework the responsibility of women.
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Tuan Anh Nguyen and Jamshed Iqbal
Design a novel optimal integrated control algorithm for the automotive electric steering system to improve the stability and adaptation of the system.
Abstract
Purpose
Design a novel optimal integrated control algorithm for the automotive electric steering system to improve the stability and adaptation of the system.
Design/methodology/approach
Simulation and calculation.
Findings
The output signals follow the reference signal with high accuracy.
Originality/value
The optimal integrated algorithm is established based on the combination of PID and SMC. The parameters of the PID controller are adjusted using a fuzzy algorithm. The optimal range of adjustment values is determined using a genetic algorithm.
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Tuan Anh Nguyen, Thi Thu Huong Tran and Thang Binh Hoang
This paper aims to design a PD controller for an active suspension system to improve the car’s moving smoothness.
Abstract
Purpose
This paper aims to design a PD controller for an active suspension system to improve the car’s moving smoothness.
Design/methodology/approach
The controller parameters are optimized by an in-loop genetic algorithm (iL-GA). Unlike previous studies that only used conventional GAs to tune coefficients for the controller, the iL-GA designed in this paper provides outstanding efficiency when determining the optimal value range for the system. The optimal value range of parameters is determined by the in-loop algorithm based on criteria related to systematic errors. The optimal values are then calculated by the GA based on this range instead of an uncertain one.
Findings
Simulation results show that vehicle body acceleration and displacement values are significantly reduced when using the active suspension system compared to the conventional passive suspension system. The phase difference phenomenon does not occur in the iL-GA situation. In addition, the frequency domain investigation also shows the system’s stability when using iL-GA instead of conventional GA.
Originality/value
To the best of the authors’ knowledge, this is a new application that provides positive effects to the suspension controller. This algorithm can be applied to tune coefficients for direct controllers in the future.
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Nguyen Khanh Doanh, Linh Tuan Truong and Yoon Heo
This paper aims at assessing the impact of institutional and cultural distances and trade barriers on ASEAN's trade efficiency using a panel data set of 65 countries for the…
Abstract
Purpose
This paper aims at assessing the impact of institutional and cultural distances and trade barriers on ASEAN's trade efficiency using a panel data set of 65 countries for the period 2006–2017.
Design/methodology/approach
First, the authors applied an improved version of the stochastic frontier model to estimate the trade efficiency scores. After that, we used the system generalized method of moment (GMM) estimator to investigate the impacts of institutional and cultural distances on ASEAN's trade efficiency.
Findings
The results show that the trade efficiency of ASEAN countries with the rest of the world (ROW) is moderate, ranging from 0.561 to 0.612, but shows a downward trend. This result indicates that considerable trade potential exists between ASEAN countries and ROW. Institutional and cultural distances, as well as the trade barriers, negatively affect ASEAN's trade efficiency. Efforts to reduce differences in institutions and cultures and to promote trade liberalization are vital remedies for ASEAN countries to turn potentials into actual trade performance.
Originality/value
This study contributes to the existing literature in three different ways. First, this is the first study on the impact of the differences between internal and external characteristics on trade efficiency, specifically, the impact of institutional and cultural distances on ASEAN's trade efficiency. Second, to obtain accurate efficiency scores, the authors use an improved version of the stochastic frontier model proposed by Karakaplan (2018), which can control the problem of endogeneity. Third, in quantifying the determinants of trade efficiency, the authors apply a system GMM estimator, which allows us to overcome the problems of endogeneity, measurement errors, and omitted variables.