Jungmu Kim, Yuen Jung Park and Thuy Thi Thu Truong
The authors examined whether stocks with higher left-tail risk measures earn higher or lower futures returns. Specifically, the authors estimate the cross-sectional principal…
Abstract
The authors examined whether stocks with higher left-tail risk measures earn higher or lower futures returns. Specifically, the authors estimate the cross-sectional principal component of a battery of left-tail risk measures and analyze future returns on stocks with high principal component values. In contrast to finance theories on the risk–return trade-off relationship, the study results show that high left-tail risk stocks have lower future returns. This finding is robust to various left-tail risk measures and controls for other risk factors. Moreover, the negative relationship between the left-tail risk and returns is more pronounced for stocks that are actively traded by retail investors. This empirical result is consistent with behavioral theory that when investors make decisions based on experience, they tend to underweight the likelihood of rare events.
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Jungmu Kim, Changjun Lee, Woo-Hyuk Lee, Youngkyung Ok and Thuy Thi Thu Truong
The authors aim to understand the driving forces behind the idiosyncratic volatility puzzle in the Korean stock market. The authors study the Korean stock market because previous…
Abstract
Purpose
The authors aim to understand the driving forces behind the idiosyncratic volatility puzzle in the Korean stock market. The authors study the Korean stock market because previous works report a strong idiosyncratic volatility puzzle in Korea, and the market for the exchange-traded funds (ETFs) including low volatility ETFs has experienced drastic growth in Korea.
Design/methodology/approach
Using common stocks listed either on KOSPI or KOSDAQ over the period 1997–2016, the authors estimate idiosyncratic volatility using the Fama–French three-factor model. In addition, based on prior literature, the authors use turnover as a proxy for overvaluation. The authors then study the role of turnover in understanding the idiosyncratic volatility puzzle in Korea.
Findings
The authors find that turnover is highly associated with idiosyncratic volatility. Turnover is extremely large among firms with high idiosyncratic volatility and the puzzle disappears after we control for turnover, meaning that turnover subsumes the explanatory power of idiosyncratic volatility for equity returns. The authors also find underperformance of stocks with high turnover and high idiosyncratic volatility exclusively during earnings announcement periods. Overall, our finding implies that the puzzle arises since high idiosyncratic volatility stocks due to high turnover are overvalued and experience correction afterwards.
Originality/value
Literature has suggested explanations based on lottery preferences of investors and market frictions behind the idiosyncratic volatility puzzle. What makes our study distinct from previous work is that we find the role of turnover in understanding the idiosyncratic volatility puzzle using turnover measure as a proxy for overvaluation in the Korean stock market.
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Dat Tien Le, Selvarajah Christopher, Thuy Thi Thu Nguyen, Hong Thi Thanh Pham and Phuong Thi Lan Nguyen
The purpose of this paper is to investigate the impact of leadership styles on different organizational outcomes and value structure such as: overall business performance, working…
Abstract
Purpose
The purpose of this paper is to investigate the impact of leadership styles on different organizational outcomes and value structure such as: overall business performance, working style, motivation and trust of employees, management efficiency and corporate culture in the context of Vietnamese small and medium enterprises (SMEs).
Design/methodology/approach
The authors perform a qualitative analysis and gather data by conducting conversational semi-structured interviews with 51 SME managers from different industries. Data were analyzed using a step-by-step approach following Creswell.
Findings
The study explores the effects of leadership styles on various organizational outcomes. Given the features of SMEs, it sheds light on the significance of leadership styles in changing work environment, increasing staff retention, and promoting the viability of SMEs. It also discusses the selection of leadership styles in accordance with Vietnamese culture.
Practical implications
This study has practical implications on human resource management in the context of SMEs. SME managers, training providers and support agencies may utilize the research outcomes to raise the awareness of SMEs leaders. Based on the research findings, appropriate training programs should be developed to assist managers in tackling major problems.
Originality/value
Although several previous studies have tried to investigate the influence of leadership styles on organizational outcomes, this is the first research to explore the topic in the context of SMEs and in conjunction with the Vietnamese culture.
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Thuy Thi Nguyen, Tien Hanh Duong, My Tran Thanh Dinh, Tram Ho Ha Pham and Thu Mai Anh Truong
This study aims to empirically investigate how difference in social trust explains the heterogeneity of intellectual property right (IPR) protection (proxied by software piracy…
Abstract
Purpose
This study aims to empirically investigate how difference in social trust explains the heterogeneity of intellectual property right (IPR) protection (proxied by software piracy rate) across countries. Specifically, the authors also examine whether this effect is complementary or substitute to legal and economic factors.
Design/methodology/approach
The authors use both ordinary least square and two-stage least square regressions to investigate this effect.
Findings
The authors find that there is also a complementary effect between trust and rule of law in reducing the violation of IPRs.
Originality/value
Although the literature by now has documented the solid relationship between trust and the quality of formal institutions, only few studies have explored more specific measures of institutional consequences. Thus, this study is the first study investigating the role of trust, a valuable social capital dimension, on IPR protection.
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Thi Phuong Linh Nguyen, Xuan Hau Doan, Thu Thuy Nguyen and Thi Mai Nguyen
The purpose of this paper is to investigate factors affecting Vietnamese farmer's intention toward organic agricultural production based on research model integrating theories…
Abstract
Purpose
The purpose of this paper is to investigate factors affecting Vietnamese farmer's intention toward organic agricultural production based on research model integrating theories: theory of planned behavior (TPB) and norm activation model (NAM).
Design/methodology/approach
After in-depth interviews with 5 agricultural researchers and 5 farmers, the authors determined the official research model and built a complete survey. Data were collected from 318 farmers in the Hanoi, Vietnam by directly survey. Statistical methods, such as Cronbach's alpha analysis, exploratory factor analysis (EFA), confirmatory factor analysis (CFA) and structural equation modeling (SEM), were used to analyze the data.
Findings
This paper shows that attitude, subjective norms, perceived behavioral control and personal norm were significantly related to intention of the farmers; awareness of consequences was positively related to ascription of responsibility, personal norm, attitude and subjective norms; ascription of responsibility has a positive relationship with personal norm. The TPB-NAM integration model is proven to be superior to the original TPB model when studying factors affecting Vietnamese farmer's intention toward organic agricultural production.
Research limitations/implications
The main limitation of this paper is that the sampling method is not representative for the whole country and just stops at researching the intentions of farmers without understanding the practices of organic agricultural production.
Practical implications
The findings indicate that state management agencies in Vietnam need to pay attention to raise awareness among farmers about the role of organic farming, communicate to farmers through different channels about the benefits of organic farming compared to conventional agriculture and form information spillover groups between farmers who have produced organic agriculture and have not yet produced organic agriculture.
Originality/value
This paper contributes to the existing literature by focusing on integrating TPB and NAM when understanding farmers' intention toward organic agricultural production in Vietnam. This integrated model has proven the suitability of combining two approaches, a rational approach and an ethical approach, when studying farmer intentions.
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Le Trinh Hai, Nguyen An Thinh, Tran Anh Tuan, Dao Dinh Cham, Luu The Anh, Hoang Luu Thu Thuy, Nguyen Manh Ha, Tran Quoc Bao, Le Van Huong, Uong Dinh Khanh, Bui Thi Mai, Tong Phuc Tuan, Hoang Hai and Quang Hai Truong
This paper aims to facilitate the joint assessment of issues related to the agricultural systems, i.e. agriculture, aquaculture and climate change (CC) response strategies, in the…
Abstract
Purpose
This paper aims to facilitate the joint assessment of issues related to the agricultural systems, i.e. agriculture, aquaculture and climate change (CC) response strategies, in the coastal districts with a panel of stakeholders; and to evaluate the level of agreement on the topics under consideration and potentially identify the most promising approaches to assessing CC affecting agricultural systems in the area and identify relevant and adequate response strategies.
Design/methodology/approach
Stakeholder Delphi technique – its assessment is an interactive method of qualitative research used to facilitate the interactive participation of varied and conceivably hierarchical and antagonistic stakeholder groups.
Findings
The most important result for the province is that the impact of climate change on agro-ecological landscapes (poverty and near river areas) is the duration of cold weather, more frequent and extreme. Moreover, Kendall’s W test gave a score of 0.547, which indicates a “strong” stakeholder agreement and the “confidence in ranks” being “high” in Thai Binh (Vietnam).
Originality/value
The scientific results in this study are intended to serve as relevant knowledge-inputs and direct contributions to capacity-building for the local partners (stakeholders and local authorities). These local partners are engaged in policy-making and effective planning and implementation of climate response measures in the districts in the province of Thai Binh.
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Vu Manh Hoai Nguyen, Van Thi Bich Nguyen, Dinh Nguyen-Cuu, Van Thi Thu Nguyen, Phuong Ly Ngoc, Thuy Thi Ngoc Ngo and Binh Tran-Nam
Most governments around the world rely heavily on tax revenue to fund not only their recurrent expenditure but also their long-term development goals. There is some evidence…
Abstract
Most governments around the world rely heavily on tax revenue to fund not only their recurrent expenditure but also their long-term development goals. There is some evidence suggesting that tax evasion in Vietnam has, over the years, been on the rise in terms of number, scale and degree of sophistication. It may thus be beneficial to understand the extent to which various relevant psychological factors interact to influence the tax compliance of Vietnamese taxpayers. This chapter attempts to quantify the effects of taxpayer's emotion, trust and perception on their tax compliance in Vietnam. It adopts a positivist research framework, a quantitative research method and primary data collection. First, a simple, theoretical model in which emotion and trust affect tax compliance both directly and indirectly through perception as a mediating variable, is constructed. The Baron−Kenny method is then applied to the data collected from an e-survey to test various hypotheses derived from the devised theoretical model. The results show that taxpayer's perception positively and significantly influences tax compliance whereas emotion and trust exert significant and positive effects on tax compliance both directly and indirectly (via perception). The findings suggest that voluntary tax compliance in Vietnam can be improved through better tax administration services, more fiscal policy accountability and pro-active tax socialization.
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Dinh Toan Nguyen, Thi Thu Mai Le, Thi Quynh Mai Nguyen, Nhat Linh Pham, Thi Ngoc Anh Ngo, Thuy Binh Chu and Mai Huong Dinh
This research aims to investigate the relationship between value orientations, attitude, behavioral intention and usage behavior of electric ride hailing service in Vietnam…
Abstract
Purpose
This research aims to investigate the relationship between value orientations, attitude, behavioral intention and usage behavior of electric ride hailing service in Vietnam through the moderating role of social influences.
Design/methodology/approach
In total, 552 valid questionnaires were collected using the survey questionnaire to analyze the effects of value orientations on attitude toward electric ride hailing and behavioral intention. Besides, this study investigates the mediating effect of attitude toward electric ride hailing and behavioral intention in the relationship with the behavior usage of electric ride hailing service as well as the moderating effect of social influence.
Findings
Three types of value orientations stimulate attitude toward electric ride hailing service and behavioral intention. In addition, attitude toward electric ride hailing service and behavioral intention play the mediating role in the effect of value orientations on behavior usage. Specifically, social influence plays a negative moderating role in the linkage between attitude towards and behavioral intention of electric ride hailing service and between intention and the behavior usage.
Originality/value
While numerous studies have investigated the influence of customers’ value orientations on multiple green purchase behaviors, this study offers new insights into the moderating role of social influence in the linkages between attitude, behavioral intention and usage behavior of electric ride hailing service.
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Dung Thi My Tran, Vinh Van Thai, Truong Ton Hien Duc and Thanh-Thuy Nguyen
This research aims to examine the effect of organisational culture on supply chain collaboration and firms’ competitive advantage in the garment industry in Vietnam.
Abstract
Purpose
This research aims to examine the effect of organisational culture on supply chain collaboration and firms’ competitive advantage in the garment industry in Vietnam.
Design/methodology/approach
Underpinned by the relational view and the organisational culture theories, the conceptual framework was proposed. This study obtained data from a survey of 192 managers in garment firms in Vietnam. A structural equation modelling was employed to examine the relationship between organisational culture, supply chain collaboration and competitive advantage.
Findings
There was a significant positive relationship between organisational culture in terms of group and development types and supply chain collaboration. Besides, the results revealed a significant positive relationship between supply chain collaboration and competitive advantage in terms of cost and differentiation. Furthermore, the cost competitive advantage was also found to have a significant positive effect on differentiation competitive advantage.
Originality/value
This study is perhaps one of the first empirical attempts to examine the relationship between organisational culture, supply chain collaboration and competitive advantage in the garment industry in Vietnam. Moreover, this study extends the application of the relational view and organisational culture theories in explaining these relationships in a new research context.
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Dung Thi My Tran, Vinh Van Thai, Truong Ton Hien Duc and Thanh-Thuy Nguyen
This research aims to investigate how organisational and contextual factors affect supply chain collaboration and how that, in turn, influences firms' competitive advantage in the…
Abstract
Purpose
This research aims to investigate how organisational and contextual factors affect supply chain collaboration and how that, in turn, influences firms' competitive advantage in the garment industry in the context of Vietnam, a developing country.
Design/methodology/approach
Following a qualitative research design, in-depth interviews were conducted with senior managers who are involved in supply chain collaboration in twelve garment companies in Vietnam. The data were recorded, transcribed and analysed using NVivo 12. Based on the literature and interview findings, a research model underpinned by the relational view (RV) and institutional theories, with organisational and contextual factors being the antecedents and competitive advantage as the outcome of supply chain collaboration, was proposed.
Findings
The findings showed that organisational and contextual factors induce both internal, supplier and customer supply chain collaboration. There is also a positive relationship between supply chain collaboration and competitive advantage. Based on these findings, a strategy matrix for supply chain collaboration is also put forward.
Originality/value
This is one of the first empirical attempts to investigate the role of organisational and contextual factors as potential antecedents of supply chain collaboration and its effects on competitive advantage in the garment industry. The research is expected to enrich both the literature and management practices on supply chain collaboration in the context of developing countries.