Herding Behavior: Do Domestic Investors Herd Toward Foreign Investors in Vietnam Stock Market?

Quynh NGUYEN P.(Quynh NGUYEN P. ) 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.9

With a view to attracting foreign investment and growing the economy, the Vietnamese government has hastened financial reforms, including the lifting of limitations on foreign investment, which has resulted in rapidly rising foreign ownership in recent years. To study the relationship between transactions of foreign investors and transactions of domestic investors on two stock exchanges in Vietnam Ho Chi Minh City Stock Exchange (HSX) and Hanoi Stock Exchange (HNX). This study applies a secondary dataset comprising daily market trading information of 912 stocks from 18 industries listed on 2 Vietnam stock exchanges, including HSX and HNX, which includes executed price, executed volume, daily Buy Orders, and Sell Orders categorized into domestic investors’ orders and foreign investors orders from 01.04.2010 to 10.04.2018. The regression results show a significantly positive relationship between foreign investors’ trading and domestic investors’ transaction in all trading activities in both up and down markets. Therefore, these results indicate that domestic investors in Vietnam are concerned with foreign investors’ trading as an important sign, and domestic investors tend to follow their counterparties without appropriate fundamental information. From there, there are signs of herding behavior of domestic investors following foreign investors in transactions on the stock market in Vietnam.

Herding Behavior: Do Domestic Investors Herd Toward Foreign Investors in Vietnam Stock Market?

Quynh NGUYEN P.(Quynh NGUYEN P. ) 한국유통과학회 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.9

With a view to attracting foreign investment and growing the economy, the Vietnamese government has hastened financial reforms, including the lifting of limitations on foreign investment, which has resulted in rapidly rising foreign ownership in recent years. To study the relationship between transactions of foreign investors and transactions of domestic investors on two stock exchanges in Vietnam Ho Chi Minh City Stock Exchange (HSX) and Hanoi Stock Exchange (HNX). This study applies a secondary dataset comprising daily market trading information of 912 stocks from 18 industries listed on 2 Vietnam stock exchanges, including HSX and HNX, which includes executed price, executed volume, daily Buy Orders, and Sell Orders categorized into domestic investors’ orders and foreign investors orders from 01.04.2010 to 10.04.2018. The regression results show a significantly positive relationship between foreign investors’ trading and domestic investors’ transaction in all trading activities in both up and down markets. Therefore, these results indicate that domestic investors in Vietnam are concerned with foreign investors’ trading as an important sign, and domestic investors tend to follow their counterparties without appropriate fundamental information. From there, there are signs of herding behavior of domestic investors following foreign investors in transactions on the stock market in Vietnam.

Personality Traits versus Public Service Motivation: Motive Distribution of Vietnamese Generation Z

Thi Quynh Trang NGUYEN(Thi Quynh Trang NGUYEN ),Tri D. LE(Tri D. LE ) 한국유통과학회 2022 유통과학연구 Vol.20 No.9

Purpose: Public sector is usually not an attractive career choice for the youths, due to the uncompetitive income and the working environment. Therefore, understanding the motivations of the Generation Z, the currently early-career employees, to work in the public sector is important. This research aims to address a gap in the literature on the linkage between Personality Traits of Generation Z and Public Service Motivation (PSM). Research Design, Data, and Methodology: Using the sample of Vietnamese generation Z, it shows how individual personality, as defined by the Big Five, affects PSM. A quantitative survey of 355 university students, who are members of this generation and are preparing to join the labor market, was undertaken. We used SEM to examine the results. Results: Our findings show that Agreeableness, Neuroticism, and Conscientiousness are significant antecedents of PSM. Agreeableness, which leads to three PSM dimensions, namely Compassion, Self-Sacrifice, and Commitment to Public Values, is the best predictor of this motivation. Meanwhile, Neuroticism and Conscientiousness only affect the dimension of Compassion. Conclusion: This study adds to the limited current knowledge on the personality-PSM relationship among generation Z. The distribution of affective (Compassion, Self-Sacrifice) and norm-based (Commitment to Public Values) motives provide insight for both career counselors and recruiters in public service delivery.

Purchase Intention Towards Japanese Convenience Goods: A Cross-Sectional Study in Vietnam

Nga Thi Quynh NGUYEN,Duong Tuan NGUYEN,Quynh Thi Phuc NGUYEN 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.10

The primary purpose of this study is to identify determinants influencing Vietnamese consumers’ purchase intention towards Japanese convenience goods. The research model consisting of six factors affecting the dependent variable is proposed based on the Theory of Consumption Values and Theory of Perceived Value of purchase. This study employs a survey method in a convenient sampling method to collect data of target respondents. Data consisting of 180 samples was collected and analyzed using the SMARPLS3 software. The measurement model is assessed to confirm the validity and reliability of the construct, then hypotheses testing is performed with Bootstrapping analysis. The results demonstrated that five factors affect Vietnamese consumers’ purchase intention towards Japanese convenience goods, including the price of the product, quality of the product, functional value, emotional value, and conditional value. Major findings of this study suggest that the functional value that consumer perceives about Japanese convenience goods has the most significant relationship with their purchase intention, followed by the quality of the product and the price of the product. Besides, emotional value and conditional value have a moderate influence on consumers’ purchase intention. Whereas the influence of the epistemic value of the product on consumers’ purchase intention is insignificant in this presented study.

Sky Mavis: Vietnam’s Unicorn that Disrupted Global Gaming Industry

Tran Diem Quynh,Do Quynh Trang,Nguyen Ha Anh,Le Ba Hung,정경화,Nguyen Phuong Linh Academy of Asian Business (AAB) 2023 Academy of Asian Business Review Vol.9 No.1

Sky Mavis, founded in 2019 by a Vietnamese software developer, is the parent of the game titled “Axie Infinity,” one of the highest-grossing blockchain-based games ever released. It took Sky Mavis only three years and eight months to transform from an idea on paper into a unicorn start-up valued at USD 8.5 billion in 2021. Sky Mavis has done an excellent job in positioning their game Axie Infinity as the pioneer, trendsetter, and revolutionary in an unestablished industry and later provided a favorable foundation for many coming applications. The success of Sky Mavis and its product, Axie Infinity, can be attributed to three main factors: product differentiation, customer-centric and community-building initiatives, and crisis management. What is special is that Sky Mavis offered players benefits beyond mere enjoyment by unleashing its potential to generate income and transfer digital assets. Successfully landing as a top player in the blockchain-based gaming market, Sky Mavis is now at the stage of choosing whether to pivot or persevere. By introducing Sky Mavis's story and analyzing its success, this article contributes to helping to understand fast-changing gaming industry and provides guidelines that can benefit game companies.

누에의 추출법에 따른 에스트로겐성 활성 평가 및 성분 분석

Quynh Nhu Nguyen,김성진,이주환,이설림,신명숙 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10

에스토로겐은 생리, 생식 기능, 폐경 등에 관여하는 여성의 주요 호르몬 중 하나이며 심장, 뼈, 혈액, 면역계, 뇌에 영향을 줄 뿐만 아니라 수많은 기능을 수행하고 있다. 이와 같이 중요한 기능을 하는 에스트로겐이 급격하게 줄어드는 갱년기가 되면, 안면홍조, 불면, 비뇨생식기계 질환 및 골다공증의 질환이 나타나기 시작한다. 누에는 동의보감에서 천연 장양 강장식품으로 기재되어 있으며 최근 혈당 조절, 여성 호르몬 증강 및 골다공증 예방, 발모 촉진 등의 특허와 논문이 보고되고 있다. 본 연구에서는 누에 번데기를 대상으로, 추출 용매, 추출 시간, 추출방법을 달리하여 신규한 24종의 누에 추출물을 제조하였고, MCF-7 유방암세포를 활용하여 에스트로겐성 활성을 측정하였다. 24종의 추출물 중 30% 에탄올을 10배 가하여, 2회 반복 추출한 시료에서 가장 우수한 에스트로겐성 활성을 보이는 것을 확인할 수 있었다. 또한, 누에 추출물 내 에스트로겐성 활성을 나타내는 활성 성분에 대해 검토하였다. 그 결과, 누에의 지표성분으로 이용되는 1-deoxynojirimycin에서 유의적인 에스트로겐성 증강 활성이 나타나는 것을 알 수 있었다. 따라서, 본 연구를 통해 여성 갱년기 증후군 개선을 위한 신규 소재로 누에 추출물의 활용 가능성을 예측할 수 있으며, 1-deoxynojirimycin이 유용한 지표성분으로 이용될 수 있는 가능성이 시사되었다.

The dependence of nitric oxide synthase inhibition caused by cigarette smoking extract on the cellular aging of bovine aortic endothelial cells

Quynh-Anh Vu Le,Yang-Hoon Kim,Jiho Min 환경독성보건학회 2015 한국독성학회 심포지움 및 학술발표회 Vol.2015 No.6

Bioethanol production from combined agriculture biomass residues

Quynh Anh Nguyen,Chi-Hoon Oh,Hyeun-Jong Bae 한국에너지학회 2017 한국에너지공학회 학술발표회 Vol.2017 No.4

Tunability of Structure and Magnetism in Heusler Mn<SUB>3-x</SUB>Co<SUB>x</SUB>Ga (0 ≤ x ≤ 1)

Quynh Anh Thi Nguyen,Thi H. Ho,S. C. Hong,S. H. Rhim 한국자기학회 2021 한국자기학회 학술연구발표회 논문개요집 Vol.31 No.2

Mn₃Ga has drawn interest in spintronics for potential applications due to large perpendicular magnetic anisotropy, high Curie temperature (~760 K), and low magnetization. Motivated by previous studies on tunability of magnetism through transition metal substitutions in Mn₃Ga, we investigate magnetic and structural properties of Mn₃Ga upon Co substitution using first-principles calculations. In the absence of Co, Mn₃Ga is in tetragonal phase. With Co, both tetragonal and cubic phases occur. x ≤ 0.5, tetragonal phase is preferred, while x > 0.5, cubic one is favored. Co magnetic moment in two phases exhibit different magnetic behaviors. In tetragonal phase, unlike other Co compounds, Co magnetic moment nearly vanishes. On the other hand, in cubic phase, it retains a usual moment at about 1 μB. Nearly vanishing Co magnetic moment in tetragonal structure is elucidated phenomenologically by the magnetic exchange coefficient, where coupling between Co and Mn is much smaller than cubic one. Furthermore, anomalous Hall conductivities (AHC) are investigated for x = 0, 0.5, and 1. The magnitude of AHC is about 100~500 S/cm, where the sign change occurs at 0.5 < x < 1.

Improvement of Bio-crude Oil Properties via Co-pyrolysis of Pine Sawdust and Waste Polystyrene Foam

Quynh Van Nguyen(응웬 반 꾸잉),Yeon-sock Choi(최연석),Sang-kyu Choi(최상규),Yeon-woo Jeong(정연우),Yong-su Kwon(권용수) 한국신재생에너지학회 2018 한국신재생에너지학회 학술대회논문집 Vol.2018 No.11