This paper aims to investigate the impact of vehicle velocity on the rollover stability of a fully loaded tractor semi-trailer during lane changes and turning. Specifically, the study focuses on velocities ranging from 30 km/h to 60 km/h. The investigation found that vehicle velocity is a critical parameter that can affect the potential for rollover during lane changes or turning. The results showed that to ensure the vehicle moves steadily and does not roll over during these maneuvers, the steering angle must be controlled and kept within certain limits. The study provided specific recommendations for maximum steering angles at different velocities. For instance, to ensure stability when the vehicle is moving at 60 km/h, the maximum steering angle should be less than 4 degrees. Similarly, at 50 km/h, the maximum steering angle is recommended to be less than 6 degrees, and at 44 km/h, it should be less than 8 degrees. At lower speeds, the recommended maximum steering angle increases, with the maximum recommended angle at 36 km/h being 12 degrees. These findings highlight the importance of carefully controlling vehicle velocity and steering angle to minimize the risk of rollover accidents. By providing specific recommendations for different velocities, this study can inform the design and safety testing of vehicles to improve their stability and safety during lane changes and turning.

This study primordially aimed at determining the effects of different factors affecting employee’s motivation at Groz-Beckert Vietnam Co. Ltd. Upon perusal and review of related literature, the researchers found out that there is a dearth of studies that have been conducted relative to this subject appertaining to MNCs in Asian countries. Thus, this paper intends to provide empirical evidences towards the link between and among selected variables being covered in this study. The researchers used the quantitative research analysis method which have surveyed and floated questionnaires to 300 employees from various units, departments, divisions at Groz-Beckert Vietnam Company Ltd and retrieved 265 validated responses. Research result further revealed that, out of the 7 factors: income and benefit, superior, work result, colleague, work condition, training and promotion, work nature positively and significantly impacts the staffs and workers of the said organization. Based on research results and findings, the researchers will provide some viable and palatable recommendations for the human resource development policies and such proposals can enhance employee’s motivation in the said entity. For ease of data collection, convenience sampling was adopted. Data were analyzed using SPSS version 21 that included descriptive and inferential statistics. The outcomes of the study showed that almost all the variables have positive correlation with the workers motivation in performing their jobs at the workplace.

This research was conducted to investigate the antecedents directly and positively affecting organization’s word-of-mouth towards professional service, primarily in the context of B2B professional general insurance services in Vietnam. The empirical results of this research indicated that five out of seven factors, namely interpersonal skills, premium, technical skills, reputation and risk coverage had both significantly positive direct and indirect effects on organization’s word-of-mouth with the mediation role of organization’s perceived service quality. Based on the empirical results, it is suggested that insurers should improve organization’s perceived service quality, and thereby enhance their word-of-mouth behavior.

Due mainly to the importance of organizational commitment for both employees and employers, it has been the subject attracting researchers over the last few decades. Therefore, the paper aims to build a model of antecedents strengthening organizational commitment. First, the paper reviews six main concepts including organizational commitment, intrinsic motivation, extrinsic motivation, employee voice, organizational identification and perceived organizational support. Next, Five-point Likert scale is used to measure those factors with two hundred and forty-nine fulltime Vietnamese employees who are working at 34 Vietnamese organizations from a variety of sectors such as tax, banking, health service, airlines, education and business. Finally, quantitative research is obtained by using EFA, CFA analysis and structural equation modeling. The findings show that three prominent factors positively affecting organizational commitment are intrinsic motivation, extrinsic motivation and organizational identification.

This study is based on the results of a survey of 518 start-ups in Vietnam during the period of establishment from 2016 to 2018. Data collection lasted from November 2019 to May 2020, interrupted by Covid-19 translation and collected data were processed on SPSS20 and AMOS24 software, model estimation and hypothesis testing using linear structural equations (SEM). The research results show that business strategy and market-oriented factors had positive impacts on the performance of Vietnamese startups. However, no regulatory relationship of business strategy has been found that affects the impact relationship of market orientation with business performance. In addition, the study also found that, in current context, startups pursuing defensive strategies have more success than firms pursuing pioneering strategies and startups in the field. Trade / services are more likely to succeed than in agriculture and industry.

This study evaluates the factors affecting digital transformation for small and medium enterprises (SMEs) in Hanoi city. The research team determined the factors affecting digital transformation for small and medium enterprises based on some models such as the Theory of reasoned action (TRA), Technology Acceptance Model (TAM), Theoretical of planned behavior (TPB), C-TAM-TPB model and Unified Model of Technology Adoption and Use. The research results identify the model of factors that affect the argument transformation SMEs in Hanoi city, including (1) Perceived usability; (2) Perceived behavioral control; (3) Social influence; (4) Expected efficiency, (5) Convenient conditions and (6) Risks existing in digital transformation. The results also show that there are 6 factors affecting the implementation of the credit union of SMEs in Hanoi city, of which 5 factors have positive effects and 1 factor has negative effects. In addition, the results also show that there are certain differences in the intentions and decisions of digital transformation between different types of enterprises.

This paper uses the DCC-GARCH and Value at Risk (VaR) model to analyze the fluctuation, linkage, and price volatility risk among coffee price series in the period of 2004 - 2020. In terms of the fluctuation, the study points out, the volatility of Vietnamese coffee price and the price of Robusta coffee in two markets were affected by two ARCH terms and GARCH terms at 1 percent level. Meanwhile, the coffee price of Brazil and Colombia is only impacted by the ARCH term. The linkage between Brazil and Colombia is the biggest. The average coefficient linkage among Vietnam with two main competitors is relatively small. In terms of price volatility risk, the price volatility risk of Vietnamese coffee is the smallest and the biggest risk is belonging to Brazilian coffee price. The results obtained would be a valuable reference for stakeholders, policymakers, coffee processing and exporting enterprises, and coffee farmers to clearly understand the fluctuation and linkage among coffee export price series, and thereby have appropriate and effective solutions and strategies in price volatility risk management to sustainable development.

The study provides the forecasts of expected returns based on cross-sectional estimates from the Fama-Macbeth regressions in the United Kingdom. We collected the data of listed firms on the London Stock Exchange on the DataStream from January 1980 to December 2020. We analyze the data sample by employing three cross-sectional models' ten-year rolling estimates of Fama-Macbeth slopes. The empirical findings demonstrate that an investor can derive a composite estimate of the expected return by integrating various company-specific variables in real-time. Model 1 indicates that the expected-return estimates have a predictive slope for future monthly returns of 95.07%, with a standard error of 0.1981. Moreover, model 2 and model 3 report the predictability of returns are 77.57% and 76.94%. In short, our empirical evidence suggests that investors and stakeholders may consider using model 1 to estimate the cost of equity due to its simplicity and effective prediction capability. Our findings are consistent with trade-off theory and prior literature.

This study aims to investigate the impact of the family factors on scholastic achievements of students in high schools and universities in Vietnam. The primary data is collected from the 538 students through an online questionnaire. We apply one empirical model with the support of SPSS and STATA to test the family determinants of academic attainments-GPA. We find that there are three factors which impact on GPA of these: Age gap, Income of the families, Negative reactions of parents to their child’s low-performed results in academic performance. The research results show that all three factors can explain for 8% with the changes in GPA of learners. While the age gap between parents and their children has minor positive effects on academic performances, family income is significantly and positively correlated to GPA. This is the reason why students from opulent families often perform better than those of more meager families.

This study aims to analyze the factors affecting students’ attitudes and entrepreneurial intention. Quantitative approach was mainly applied with structured questionnaires directly delivered to 2,141 senior students and newly graduates from twelve universities in Ho Chi Minh City. The empirical results show that social norms, personal traits of openness to new experiences, extraversion, conscientiousness, and positive attitudes directly and indirectly affected entrepreneurial intention. In addition, agreeableness and negative attitudes negatively affected entrepreneurial intention. Based on the findings, discussions and practical implications were suggested for improving educational programs that promote the nurture of talented entrepreneurs for the country.