DIVIDEND YIELD INVESTMENT STRATEGIES IN THE VIETNAMESE STOCK MARKET

This study examines the performance of dividend yield investment strategies in the Vietnam stock market over the period from 2003 to 2012. One of the most well-known strategies is commonly referred to as ‘Dogs of the Dow’ strategy (DoD), which involves investing equal amounts in the 10 highest-yielding stocks of a market index. In addition to the standard DoD-10, the performance of the DoD-5 version is also investigated. The performance of the strategies is analyzed on an absolute and risk adjusted bases. Beside Sharpe ratio and Treynor index, the market-adjusted model and ‘Modigliani-squared’-adjusted model are used to measure the abnormal return of the investment strategies. Furthermore, the transaction costs and taxes payment are taken into account to test the economic significance of the strategies. Finally, the size effect and book value effect are examined to find explanations for the DoD phenomenon. The empirical findings suggest that the all of the investigated DoD strategies strongly outperform the market index. In particular, the average annual abnormal return of the DoD-10 is 15.3%, whereas, the corresponding return of the DoD-5 strategy is 29.7%. Although the abnormal returns after taxes and transaction costs are positive, they are albeit statistically insignificant. These findings indicate that the DoD investment strategy may not be economically significant. Finally, this study provides evidence to support that the DoD phenomenon is not caused by the value effect. The finding seems to be consistent with many previous studies. Conversely, the DoD phenomenon can probably be explained with the size effect.fi=Opinnäytetyö kokotekstinä PDF-muodossa.|en=Thesis fulltext in PDF format.|sv=Lärdomsprov tillgängligt som fulltext i PDF-format

Developing a High-Quality, Modern Labor Market in Vietnam

The labor market in Vietnam has experienced significant changes due to global trends and the demand for competitiveness in the region. This study investigates the evolving Vietnamese labor market, considering the obstacles presented by the Covid-19 pandemic and the fourth industrial revolution. The paper underscores the significance of adhering to international labor laws and standards to effectively tackle these challenges. By examining the influence of these external factors and their repercussions on labor standards, this research offers valuable insights for policymakers, employers, and workers in Vietnam. The findings emphasize the need to align domestic labor policies with international standards in order to establish a just and sustainable labor market in Vietnam amidst the evolving global landscape

Factors influencing the digital transformation skills of primary school teachers in the southern border province, Vietnam

The study aims to explore the factors affecting the digital transformation skills of primary school teachers in the southern border province of Vietnam. A descriptive study design was used to collect data from primary school teachers in An Giang province. The survey consists of 25 questions on a 5-level Likert scale designed to collect information on many factors. The primary factor in the digital transformation of teachers is   their intention. These findings make practical contributions to the research on the skill development of primary school teachers in the context of digital transformation to improve the quality of education in primary schools. At the same time, the study also provides five factors affecting the digital transformation capacity of primary school teachers, adding additional reference sources to support educational managers in the southern border region of Vietnam in building school development strategies according to the priority levels of each factor

Wind induced vibration of stay cable bridge evaluation based on the operational accelerometers monitoring data and field testing

Wind induced vibrations are considering as one of the major concerns of the owner, the engineers and contractors of stay cable bridges. This paper presents in premier lieu the assessment of the vibration monitoring data from the pre-installed accelerometers on the longest cables of the Bach Dang bridge, Quang Ninh province. The identified cables natural frequencies based on the ambient vibration monitoring data were then compared to the taut string vibrating model calculation based on lift-off tension forces showing a good concordant. The enhanced damping of the cables stayed were then estimated and compared to the damping test results of another stay cables bridge recently performed in Vietnam with similar range of cables length. The damping prediction are quite in line with the damping test results and comparable also to those given in most of International Standard for stay cable. Finally, the identified natural frequencies and predicted intrinsic damping were used for an assessment of the wind induced vibration instability including the wind/rain induced vibration, wake galloping and vortex excitation

Evaluating factors affecting attitudes of IT-intensive and non-IT-intensive students towards e-assessment

Despite the significant shift to distance computer-based test as an inevitable outcome of Industry 4.0 and the public lockdown of COVID-19, little effort has been made to research this new testing mode. To address this issue, this study targets two groups of information technology (IT)-intensive and non-IT-intensive students with an aim of investigating factors that effectively encourage each group to adopt online assessment and whether their majors cause any differences in the students’ attitudes. Based on the student perception of e-assessment questionnaire (SPEAQ) with some slight modifications, a final 28-item survey was formed and distributed to 400 students. Results have shown that the factors of security, and affective factors were the top factors to impact both groups of students, while the impact of validity and practicality varied among the two groups and reliability and teaching-learning were at the bottom. Besides, there were no noticeable differences in the attitudes of students coming from different majors

Host genetic susceptibility to severe dengue infection

Epidemiological evidence indicates that host genetic factors are relevant and predispose DHF/DSS development. Here, we review the host genetic studies concerning human leucocyte antigens, antibody receptors, immune/inflammatory mediators, attachment molecules, cytokines and other factors exerting an immunoregulatory effect as well as the current genome-wide association studies. We also discuss some viewpoints on future challenges related to the design of safe and effective prevention and treatment options

Wind induced vibration of stay cable bridge evaluation based on the operational accelerometers monitoring data and field testing

Wind induced vibrations are considering as one of the major concerns of the owner, the engineers and contractors of stay cable bridges. This paper presents in premier lieu the assessment of the vibration monitoring data from the pre-installed accelerometers on the longest cables of the Bach Dang bridge, Quang Ninh province. The identified cables natural frequencies based on the ambient vibration monitoring data were then compared to the taut string vibrating model calculation based on lift-off tension forces showing a good concordant. The enhanced damping of the cables stayed were then estimated and compared to the damping test results of another stay cables bridge recently performed in Vietnam with similar range of cables length. The damping prediction are quite in line with the damping test results and comparable also to those given in most of International Standard for stay cable. Finally, the identified natural frequencies and predicted intrinsic damping were used for an assessment of the wind induced vibration instability including the wind/rain induced vibration, wake galloping and vortex excitation