This study investigates the impact of different leadership styles on project success, specifically examining the mediating role of team collaboration. This study utilized a diverse sample of 202 respondents representing five distinct national contexts: Jordan, Saudi Arabia, China, Australia, and the United Arab Emirates. PLS-SEM were employed to analyze the relationships between transformational leadership, transactional leadership, laissez-faire leadership, team collaboration, and project success. Our findings reveal that both transformational and transactional leadership styles are positively associated with project success. Conversely, laissez-faire leadership demonstrated a negative relationship with team collaboration but did not directly predict project success. Importantly, team collaboration was found to mediate the relationship between both transformational leadership and project success, as well as between transactional leadership and project success. However, the hypothesized mediating role of team collaboration between laissez-faire leadership and project success was not supported. These findings underscore the critical role of leadership style and team collaboration in achieving project success, offering valuable insights for organizations and project managers seeking to optimize leadership practices and foster collaborative work environments.

This research analyses how different leadership styles affect project managers in the telecommunications sector, focusing on transactional and transformational leadership's direct effects on project performance. Ambidextrous Leadership's role as a mediator is explored alongside the influence of Project Management approaches (Waterfall, Agile, Hybrid) and Project Manager Certifications. Data from 224 Project Managers in 77 Indonesian telecom companies was examined using Structural Equation Modelling Partial Least Square (SEM PLS). The findings indicate that Transactional and Transformational Leadership alone don't directly affect Project Performance, but Ambidextrous Leadership significantly enhances it. Different Project Management Approaches (Waterfall, Hybrid, Agile) amplify the impact of leadership styles. Transactional leadership is strongly linked to the waterfall, while transformational and ambidextrous leadership aligns with the agile and hybrid approach. Project Management Certification strengthens Transactional Leadership's effect on Project Performance, with less impact on Transformational Leadership. The research emphasizes the significance of Ambidextrous Leadership in improving project performance and how project management approaches and certifications can enhance or moderate the influence of leadership styles on telecommunication project management. These findings offer industry practitioners and organizations valuable insights, contributing to leadership, project management, and telecommunications research.

The purpose of this research is to determine the effects of transactional leadership on occupational stress and their effects towards employee work performance using plantation companies in the Riau province as a case study. In this research, the population of the study covers all the plantation company field managers who operate in the Riau province. 196 respondents who were field managers from large plantation companies in the Riau province were taken as sample. The data analysis tech-nique utilized in this research is the Structural Equation Modelling (SEM) analysis using the SPSS AMOS 22 program. The research results reveal that: (1) Transactional leadership has a significant effect on occupational stress. (2).Transactional leadership has no significant effects on work Performance. (3) Occupational stress has a significant effect on work performance.

The objective of this paper is to assess the impact of transactional leadership on supply chain quality management and performance in tourism and travel enterprises in Vietnam. The analysis results were conducted on 298 typical tourism and travel enterprises in Vietnam in 2019. The testing results of the hypotheses show that transactional leadership had a positive impact on supply chain quality management and performance. At the same time, supply chain quality management did not play any full mediate role in the relationship between transactional leadership and performance. However, the qualification level had a statistically significant moderate role in the relationship between transactional leadership and performance. With the more highly qualified leaders, the more transactional leadership is applied, the higher the business performance for tourism and travel enterprises in Vietnam.

Small and Medium Enterprises (SMEs) in India are currently facing the challenges of increased competitions. In such environment, labor retention is very important factor for competition and survival. In this context, appropriate leadership styles and Quality of Work Life (QWL) are very important factors for survival. Literature on QWL is limited to SMEs and several studies commonly correlated with only QWL dimensions but no study on QWL has association with Leadership styles. This empirical study is accomplished to predict QWL in relation to Transformational and Transactional leadership styles. The sample consists of 240 Mechanical Manufacturing SMEs in Bangalore, India. To draw the inference chi-square test, Pearson correlation and regression analysis was carried out for the collected data using Mini Tab14. The results indicate that 25% of SMEs have implemented good QWL, in 56.6% of SMEs have implemented Transformational leadership styles; QWL of SMEs has significant association with Leadership styles. QWL and Leadership styles of SMEs are independent of demographical factors of SMEs like age of the firms, size of the firms, and cost of the project. QWL dimensions like work environment, relation and cooperation, autonomy of work has a significant association with leadership style. For both transformational and transactional leadership style job satisfaction and job security has highest correlation coefficient.

This paper examines the effect of leadership styles on organizational culture by testing a hypothesized model. A quantitative survey using questionnaire was conducted among 93 employees from diverse work units of Mapsa Company in October 2012. They filled out multifactor leadership questionnaire and the Denison organizational culture survey. Results of structural equation modeling (SEM) showed that Transformational and Transactional leadership styles could positively influence on organizational culture. Laissez-fair leadership has a negative effect on organizational culture. In conclusion, transformational leadership style was recommended to balance all four traits of Denison’s organizational culture.

Leadership style plays an essential role on personality trait in educational systems. In this paper, we present a study among 180 school principals in city of Khomeinishahr, located in province of Esfahan, Iran. The study selects a sample of 123 principals and examines ten hypotheses including the effects of personality trait neuroticism, extroversion, resilience, participative, conscientiousness on leadership style. The study examined the effects of two groups of leadership, namely transactional leadership and Laissez-fair leadership styles on five personality traits. The results have shown that there were some meaningful relationship between transactional leadership and personality trait extraversion, resilience, participative and consciousness but there was not meaningful relationship between transactional leadership and personality trait neuroticism. In addition, while there were meaningful and positive relationship between Laissez-fair leadership style and personality trait extraversion as well as being resilience, our survey did not find any meaningful relationship between Laissez-fair leadership style and personality trait neuroticism, extraversion and being consciousness.

Leadership style plays an important role on job satisfaction in educational systems. In this paper, we present a study among 180 school principals in city of Khomeinishahr, located in province of Esfahan, Iran. The study selects a sample of 123 principals and examines ten hypotheses including the effects of personality trait neuroticism, extroversion, resilience, participative, conscientiousness on job satisfaction. The study also investigates the impacts of transformational leadership style, transactional leadership style and Laissez – fair leadership style on job satisfaction. Finally, the study considers the relationship between personality trait neuroticism and transformational leadership style as well as personality trait extraversion and transformational leadership style. The study uses Pearson correlation test and verify that nine out of ten hypotheses have been confirmed and the relationship between Laissez – fair leadership style and job satisfaction is not confirmed.