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Article
Publication date: 2 December 2024

Nguyen Hong Quan, Pham Thi Ha, Vi Thanh Tuan, Nguyen Hoai Nam, Le Thi Thuy Trang and Nguyen Truc Mai

This study aims to investigate the moderating role of e-trustmarks in the relationship between electronic word of mouth (eWoM), security, quality of information, and purchase…

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Abstract

Purpose

This study aims to investigate the moderating role of e-trustmarks in the relationship between electronic word of mouth (eWoM), security, quality of information, and purchase behaviour of consumers on B2C e-commerce websites. The research was conducted in the context of emerging countries.

Design/methodology/approach

The research utilised partial least squares path modelling (PLS-SEM) to assess the model and its hypothesised relationships, drawing on data from a survey of 1993 consumers engaged in e-commerce websites with e-trustmarks. The study incorporated SOR theory, asymmetric information theory, and signalling theory.

Findings

E-trustmarks moderate the positive impact of eWoM, security, and quality of information on online trust. A moderating effect of e-trustmarks was also found, such that the positive association between purchase intention and purchase behaviour was stronger when e-trustmarks were higher.

Research limitations/implications

This study was conducted solely in Vietnam and focused only on a set of input variables without addressing specific industries or market segments. The research did not use demographic data, such as the age and income of the surveyors, to identify variations in the impact of variables on different target groups, indicating potential areas for future research.

Practical implications

Emerging countries should implement targeted policies regarding e-trustmarks and encourage businesses to adopt them to reduce information asymmetry in the online environment.

Originality/value

This study contributes to asymmetric theory and signalling theory by offering critical insights into how online businesses can make use of influence mechanisms in the model to ease asymmetric information. Integrating signalling theory and moderating e-trustmarks into the SOR model advances research on consumer behaviour in emerging countries’ e-commerce markets with asymmetric information.

Details

Journal of Advances in Management Research, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0972-7981

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Article
Publication date: 12 June 2024

Hoai Than Nguyen, Tan Thanh Nguyen, Thi Vinh Tran Nguyen and Thi Thanh Truc Nguyen

This study sought to investigate the attitudes of Vietnamese undergraduate business students towards English-Medium Instruction (EMI) courses.

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Abstract

Purpose

This study sought to investigate the attitudes of Vietnamese undergraduate business students towards English-Medium Instruction (EMI) courses.

Design/methodology/approach

Data were collected through purposive sampling using structured questionnaires, resulting in a dataset comprising 291 responses. This study employs a combination of Importance–Performance Analysis (IPA) and structural equation modeling (SEM) to evaluate students' perceptions of effectiveness of EMI courses, their satisfaction and loyalty.

Findings

The study’s findings revealed a noteworthy pattern: students assigned higher levels of importance to various aspects of EMI courses than the actual performance levels of these elements. Additionally, the analysis identified specific attributes that fell into different IPA quadrants, shedding light on their relative significance. Notably, the students placed their teachers' professional expertise and English proficiency in the “keep up the good work” quadrant, indicating the strengths of these attributes. In contrast, learning assessment techniques, course learning materials and electronic teaching platforms were situated in the “concentrate here” quadrant, implying room for improvement in these areas. Furthermore, it was observed that attributes falling within the “keep up the good work” quadrant had a positive effect on students' overall satisfaction and loyalty, while other characteristics did not significantly contribute to predicting these outcomes.

Originality/value

Based on these findings, the study offers recommendations for educational institutions and educators concerning the planning and implementation of EMI courses.

Details

Journal of Applied Research in Higher Education, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2050-7003

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Article
Publication date: 4 November 2024

Tung Hoang Vo, Phuong Thi Hoai Nguyen, Truong Tai Nguyen, Nhu Thi Nguyen, Duc Dinh Nguyen and Duc D. La

Corrosion of steel in marine environments poses a significant economic and environmental challenge because of its detrimental effects on marine structures and equipment…

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Abstract

Purpose

Corrosion of steel in marine environments poses a significant economic and environmental challenge because of its detrimental effects on marine structures and equipment. Traditional chemical inhibitors that mitigate corrosion often introduce harmful substances into the environment. As a result, there is a growing interest in exploring eco-friendly alternatives, such as plant-derived inhibitors, to reduce the environmental impact of corrosion protection strategies. The purpose of this study is to investigate the effectiveness of Phyllanthus urinaria extract as a green anti-corrosion additive for rebar steel in marine conditions.

Design/methodology/approach

Phyllanthus urinaria extract was prepared in the ethanol solution with the assistance of a sonicator. The steel’s surface upon addition of the extract was characterized using SEM, EDX and FTIR analysis. The electrochemical corrosion characteristics, including potentiodynamic polarization and electrochemical impedance spectroscopy, were used to evaluate the inhibitory performance of the extract on steel under simulated marine conditions (3.5% NaCl solutions).

Findings

The results of this study showed that with Phyllanthus urinaria extract’s content of 0.02% in NaCl solution of 3.5%, the corrosion rate decreased to about 30% compared to the controlled sample. Measurements of the inhibitory mechanism analysis study for all solutions from 0 mg/L to 1.114 mg/L of polyphenol from Phyllanthus urinaria extract showed a significant reduction in rebar corrosion rate, especially with 0.2228 mg/L polyphenol. Reinforcement can increase corrosion inhibition by up to 30% compared to the control sample.

Originality/value

To the best of the authors’ knowledge, this is the first study of using Phyllanthus urinaria extract as green inhibitor for protection of steel from the corrosion in the simulated marine solution. The protective mechanism for steel using Phyllanthus urinaria extract was investigated using the FTIR, SEM, EDX and electrochemical analysis. The results indicated that the polyphenols in the extract showed inhibition that could minimize the corrosion of reinforcement in marine environments.

Details

Anti-Corrosion Methods and Materials, vol. 72 no. 1
Type: Research Article
ISSN: 0003-5599

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Publication date: 5 October 2018

Long D. Nguyen, Long Le-Hoai, Dai Q. Tran, Chau N. Dang and Chau V. Nguyen

Managing complex construction projects is a challenging task because it involves multiple factors and decision-making processes. A systematic evaluation of these complex factors…

Abstract

Managing complex construction projects is a challenging task because it involves multiple factors and decision-making processes. A systematic evaluation of these complex factors is imperative for achieving project success. As most of these factors are qualitative or intangible in nature, decision makers often rely on subjective judgements when comparing and evaluating them. The hybrid techniques that integrate fuzzy set theory and the analytic hierarchy process (AHP) are able to deal with such problems. This chapter discusses various hybrid techniques of the fuzzy AHP and presents an application of these techniques to the evaluation of transportation project complexity, which is essential for prioritising resource allocation and assessing project performance. Project complexity can be quantified and visualised effectively with the application of the fuzzy AHP. This chapter enhances the understanding of construction project complexity and fuzzy hybrid computing in construction engineering and management. Future research should address the calibration of fuzzy membership functions in pairwise comparisons for each individual decision maker and develop computational tools for solving optimisation problems in the constrained fuzzy AHP. In the area of construction project complexity, future research should investigate how scarce resources are allocated to better manage complex projects and how appropriate resource allocation improves their performance.

Details

Fuzzy Hybrid Computing in Construction Engineering and Management
Type: Book
ISBN: 978-1-78743-868-2

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Available. Open Access. Open Access
Article
Publication date: 30 November 2018

Dung Nguyen, Hoai Nguyen and Kien S. Nguyen

The purpose of this paper is to investigate the simultaneous relationship among ownership concentration, innovation and firm performance of the small- and medium-sized enterprises…

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Abstract

Purpose

The purpose of this paper is to investigate the simultaneous relationship among ownership concentration, innovation and firm performance of the small- and medium-sized enterprises (SMEs) in Vietnam during the 2011–2015. By employing a Conditional Mixed Process (CMP) model, the findings show that: there is no impact of ownership concentration on innovation, but it has a positive impact on sales growth; innovation positively affects firm performance; and there exists a positively reverse causality from sales growth to innovation.

Design/methodology/approach

In this study, the authors propose the adaption of CMP model (Roodman, 2011). The nature of the first stage dependent variable – Innovation – is a binary one while the dependent variable Performance is continuous. Therefore, a model that can adapt the binary nature of the dependent variable and perform the estimation of a system of equations such as CMP model is preferred. The CMP framework is substantially that of seemingly unrelated regression, but with application in a larger scope. This approach is based on a “simulated maximum likelihood method” suggested by Geweke–Hajivassiliou–Keane algorithm.

Findings

By applying CMP method, this study examines the simultaneous relationship among ownership concentration, innovation and firm performance of the SMEs in Vietnam from 2011 to 2015. The findings indicate that: there is no impact of ownership concentration on innovation, but it has a positive impact on sales growth; innovation positively affects firm performance; and there exists a positively reverse causality from sales growth to innovation.

Research limitations/implications

In spite of the efforts to explore the simultaneous relationship among ownership concentration, innovation and firm performance of the SMEs in Vietnam, the study still has some limitations which are promising further research directions. First, the SME surveys by Central Institute for Economic Management do not have much information about other types of ownership including state-owned and foreign ownership. Therefore, possible further studies with richer data sets may explore the impacts of different types of ownership on firm innovation and performance. Second, other types of innovation such as organizational innovation, marketing innovation can also be investigated in further studies in a richer data set for the case of Vietnam SMEs.

Originality/value

The findings show that: there is no impact of ownership concentration on innovation, but it has a positive impact on sales growth; innovation positively affects firm performance; and there exists a positively reverse causality from sales growth to innovation. The policy implications insist on facilitating SMEs with easier access to capital via loans with preferred interest or trust loans without collateral, training programs for the labor force and SME leaders, and reduction of unnecessary administrative procedure.

Details

Journal of Asian Business and Economic Studies, vol. 25 no. 2
Type: Research Article
ISSN: 2515-964X

Keywords

Available. Open Access. Open Access
Article
Publication date: 29 January 2024

Nguyen Minh Quang, Nozomi Kawarazuka, Thien Ngoc Nguyen-Pham, Thu Hoai Nguyen, Hieu Minh Le, Tho Thi Minh Tran and Thoa Thi Ngoc Huynh

Recognition that not every climate adaptation policy is a good one has shifted attention to new tools and methods to measure the adequacy and effectiveness of adaptation policies…

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Abstract

Purpose

Recognition that not every climate adaptation policy is a good one has shifted attention to new tools and methods to measure the adequacy and effectiveness of adaptation policies. This study aims to propose and apply and applies an innovative adaptation policy assessment framework to identify the extent to which climate adaptation policies in Vietnam exhibit conditions that are likely to ensure a sufficient, credible and effective adaptation.

Design/methodology/approach

In total, 21 conditions, categorized under five normative principles and covering critical issue areas in adaptation domain, form the climate adaptation policy assessment framework. The principles were double-checked and tested in case studies through observations and analyses of policy documents to ensure that each condition should be distinct and not overlapping across principles. To see if the principles and attendant conditions were able to capture all relevant aspects of adaptation, the authors used structured expert judgment. In total, 39 policy documents pertaining to climate change adaptation were selected for qualitative document analysis. In-depth interviews with local officials and experts were conducted to address data gaps.

Findings

The study reveals major weaknesses constituting a reasonably worrisome picture of the adaptation policies in Vietnam since several critical conditions were underrepresented. These results shed new light on why some adaptation policies falter or are posing adverse impacts. The findings suggest that a sound policy assessment framework can provide evidence on what effective adaptation policy looks like and how it can be enabled. The framework for climate adaptation policy assessment in this study can be easily adjusted and used for different socio-environmental contexts in which new conditions for policy assessment might emerge.

Social implications

The findings show underlying weaknesses constituting a reasonably worrisome picture of the adaptation regime in Vietnam. In the absence of mechanisms and measures for accountability and transparency in policy processes, adaptation in Vietnam appears more likely to be prone to maladaptation and corruption. While solving these problems will not be easy for Vietnam, the government needs to evaluate whether the short-term gains in sustaining the existing adaptation policies really make progress and serve its long-term climate-adaptive development goals.

Originality/value

Although interpretations of adaptation effectiveness may be very divergent in different normative views on adaptation outcomes, the authors argue that a common, agreed-upon effectiveness can be reached if it is clearly defined and measurable in adaptation policies. Thus, the climate adaptation policy assessment framework proposed in this study is critical for policymakers, practitioners, donors and stakeholders dealing with adaptation to better understand the weaknesses in policymaking processes, pinpoint priority areas of action and timely prevent or prepare for possible adverse impacts of policies.

Details

International Journal of Climate Change Strategies and Management, vol. 16 no. 1
Type: Research Article
ISSN: 1756-8692

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Article
Publication date: 3 July 2023

Duong Tuan Nguyen, Thi Ngoc Hoai Nguyen, Van Binh Luu, Van Khanh Bui and Tra My Nguyen

This study aims to explore the impact of personality traits on self-perceived employability (SPE) and test if the associations are mediated by knowledge sharing (KS) through…

163

Abstract

Purpose

This study aims to explore the impact of personality traits on self-perceived employability (SPE) and test if the associations are mediated by knowledge sharing (KS) through online learning during the COVID-19 pandemic. In addition, the moderation effect of trust in the relationship between KS and SPE was examined.

Design/methodology/approach

Based on Big Five Personality Trait Model and KS model, the authors proposed and tested the research framework with 341 samples collected from university students who experienced online learning during the social distancing caused by the COVID-19 pandemic. The measurement model was assessed to confirm the validity and reliability of the structure, then hypothesis testing was performed with the partial least square-structural equational model (PLS-SEM).

Findings

The results showed that extraversion and agreeableness positively affected SPE through KS. Moreover, trust played a moderating role on the effect of KS on SPE.

Practical implications

Based on the research findings, the authors suggest that academic institutions, especially universities, should provide opportunities for students to explore their personality traits. Second, the university should organize specific activities that promote knowledge sharing among students. Third, the university should encourage the creation of platforms aimed at sharing knowledge in a reliable way that increases trust in responsiveness.

Originality/value

The present study contributes to the literature on SPE by presenting immediate empirical evidence on the relationship between personality traits and SPE, along with mediating and moderating effects. These findings provide meaningful implications for higher education institutions that implement online learning during challenging circumstances.

Details

Journal of Applied Research in Higher Education, vol. 16 no. 2
Type: Research Article
ISSN: 2050-7003

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Article
Publication date: 17 July 2023

Nguyen Trong Hoai, Luong Vinh Quoc Duy and Damien Cassells

Internationalization is viewed as an important strategy in the context of a country in transition from central planning to market orientation. Efforts to internationalize…

350

Abstract

Purpose

Internationalization is viewed as an important strategy in the context of a country in transition from central planning to market orientation. Efforts to internationalize universities are being carried out at both national and institutional levels. However, to the best of the authors’ knowledge, there has been no study to investigate how individual institutions approach internationalization and what they gain from that process. This paper aims to investigate the enhancement of teachers’ and students’ knowledge and skills using internationalization in Vietnam universities as a strategy.

Design/methodology/approach

Semi-structured interviews with leaders from 12 universities were conducted to investigate their perceptions, strategies and perceived outcomes of the internationalization process of their universities. Data analysis involved coding the transcripts of interviews into themes.

Findings

Results show that current approaches to internationalized activities in Vietnamese universities are ad hoc in nature, while resources and language incompetence of staff and students are limited. In line with other previous studies, limited resources and lack of English competence among educators and students were found to be the key obstacles and challenges for internationalized activities. The authors also note an issue that apparently has not been raised elsewhere in the relevant research literature, which is the challenge for the sustainability of knowledge production via research and publications.

Originality/value

Findings from this study not only contribute to Vietnamese universities but also to other developing institutions which do not have strong international exchange programs or have not experienced strong benefits from international exchange programs.

Details

The Learning Organization, vol. 30 no. 5
Type: Research Article
ISSN: 0969-6474

Keywords

Available. Open Access. Open Access
Article
Publication date: 15 July 2021

Minh Ha-Duong and Hoai-Son Nguyen

The authors estimate the reduction of electricity poverty in Vietnam. The essential argument is that human development is about subjective feeling as much as technology and income.

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Abstract

Purpose

The authors estimate the reduction of electricity poverty in Vietnam. The essential argument is that human development is about subjective feeling as much as technology and income.

Design/methodology/approach

The authors use a self-reported satisfaction indicator as complementary to objective indicators based on national household surveys from 2008 to 2018.

Findings

In 2010, the fraction of households with access to electricity was over 96%. However, over 24% declared their electricity use did not meet their needs. Since 2014, the satisfaction rate is around 97%, even if 25% of the households used less than 50 kWh/month. Today there is electricity for all in Vietnam, but electricity bills weigh more and more in the budget of households.

Practical implications

The subjective energy poverty measure allows better international statistics: unlike poverty or needs-based criteria, self-assessed satisfaction of needs compares across income levels and climates.

Social implications

Inequalities in electricity use among Vietnamese households decreased during the 2008–2018 period, but are not greater than inequalities in income, contrary to the findings of Son and Yoon (2020).

Originality/value

Engineering and econometric objectivist approaches dominate the literature on sustainability monitoring. Out of 232 sustainable development goal (SDG) indicators, only two are subjective. Yet the findings show that subjective indicators tell a different part of the story. Access is not grid building, but the meaningful provision of electricity to satisfy the needs.

Details

Fulbright Review of Economics and Policy, vol. 1 no. 1
Type: Research Article
ISSN: 2635-0173

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Article
Publication date: 28 June 2022

Sy Tien Do, Viet Thanh Nguyen and Nghia Hoai Nguyen

This study aims to examine the mutual influence of causes of variation orders (VOs), claims/disputes (CDs) on project performance (PP) and stakeholder performance (SP).

591

Abstract

Purpose

This study aims to examine the mutual influence of causes of variation orders (VOs), claims/disputes (CDs) on project performance (PP) and stakeholder performance (SP).

Design/methodology/approach

Firstly, this study identifies the VOs, the CDs, criteria for measuring the PP and criteria for measuring the SP. Then, a survey questionnaire is created to collect data from stakeholders in construction projects. Using the factor analysis method, this study discovers the constructs of the VOs, CDs, PP and SP. The relationships among the constructs are then uncovered using a structural equation model.

Findings

The research findings confirm that the VOs and CDs have a direct effect on the PP, as well as the PP’s effect on SP, whereas the VOs and CDs have no effect on the SP. It is strongly recommended that critical factors such as poor management, construction method change, design/scope problems, uncontrollable objective problems, impediment problems, lack of commitment among parties and lack of experience and competence of parties should be given special attention to improve the SP.

Originality/value

The results of the study fill the gap in knowledge by examining the mutual influence of the VOs, the CDs, the PP and the SP. Discovering the mutual influence will assist managers in improving the PP and the SP.

Details

Engineering, Construction and Architectural Management, vol. 30 no. 9
Type: Research Article
ISSN: 0969-9988

Keywords

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