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Purpose: The purpose of the work is to study the characteristics of leadership and to determine its value in the process of decision making in modern business systems, as well as to determine the possibilities of increasing the effectiveness of this process through changing the characteristics of leadership.

Methodology: Target study of the influence of leadership on the process of decision making in modern business systems on the basis of the methodology of the systemic approach is performed, and two additional characteristics of leadership are determined, apart from management style, in the aspect of making of managerial decisions: contradiction of leaders in business system and authority of a formal leader (business manager) in business system and his competence as to involvement of employees into the process of making of managerial decisions, which includes capabilities. Depending on combination of these characteristics, classification of leadership in modern business systems as to criterion of decision making is offered.

Conclusions: It is substantiated that the most preferable type of leadership in a modern business system as to criterion of decision making is highly effective involvement of employees in the process of making of managerial decisions. Capabilities of increasing the effectiveness of the process of making of managerial decisions in a modern system through changing the characteristics of leadership are connected to transition to this type of leadership through overcoming the contradiction of leaders in a business system and increase of competence of the formal leader (business manager) in a business system as to involvement of employees in the process of making of managerial decisions through his training.

Originality/value: It is substantiated that leadership in business system determines only certain characteristics of the process of making of managerial decisions, and no type of leadership can guarantee optimal decisions. With highly effective involvement of employees in the process of making of managerial decisions, the probability of optimal decisions is the highest, so this type of leadership is the most perspective for modern business systems.

Previous literature has compared the effectiveness of different styles of leadership, yet most of this research has not compared different levels of analyses regarding leader styles or behaviors. This shortcoming often limits our understanding of how leadership acts on a phenomenon of interest to a single level of analysis. This article develops a computational model and describes a levels-based comparison of four types of leadership that represent three different levels: individual, dyad, and group. When examined across a dynamic group decision-making optimization scenario, group-based leadership is found to produce decisions that are closer to optimal than dyadic-based and individual-based leadership. An alternative computational model varying individual cognitive and experience-based components among group members also indicates that group-based leadership produces more optimal decisions. First published in Leadership Quarterly (Dionne, S. D., & Dionne, P. J. (2008). Levels-based leadership and hierarchical group decision optimization: A simulation. Leadership Quarterly, 19, 212–234), this version offers an updated introduction discussing simulation as a theoretical development tool and supplies additional evidence regarding the growth of simulation methods in leadership research.

In an age where morality requires economic justification, it is a compelling task to explicate the deeper affecting implications of moral judgment than its mere financial costs. In this chapter, we explore the emotional, behavioral, and cognitive ramifications of moral leadership at both the individual and macro organizational levels; specifically, by summoning literature on leadership, affect, and organizational justice to build a conceptual model of affect and interactional justice in moral leadership. The aim of the model is to extend current theoretical frameworks and highlight the important ramifications that moral decision-making has on employee and organizational welfare including that of the decision maker. The chapter concludes with a call for research comparing moral and immoral leadership in terms of different influence and strategy processes adopted by leaders and their followers’ attributions, emotions, attitudes, and behaviors.

There has been a lack of focus on multi-level issues within leadership research. Dionne and Dionne (2009) address this gap in the research by presenting a Monte Carlo simulation examining leadership at four levels of analysis within a group decision-making context. While their work makes a strong contribution to the sciences of leadership, group decision making, and team complexity, many aspects of the research demonstrate potential for great expansion and improvement. Toward this purpose, this commentary discusses and provides suggestions regarding the topics of computer simulation in team research, group decision-making theory, and the modeling of team complexity. It is intended to stimulate continued critical thinking and more innovative, practical, and carefully designed research efforts.

Successful smart cities' implementation will require organisational leadership decision-making competences. The foundation of smart cities is digital technologies; many of these technologies are emerging technologies that require IT skills, which are scarce and will exacerbate the battle for talent between organisations. Filling the talent gap will necessitate global hiring, which has implications for organisational culture, cultural diversity and organisational leadership. Organisational cultural mix is an important contributor to leadership decision-making. However, decision-making is underpinned by trust. Blockchain is an emerging technology that has the potential to engender organisational trust in decision-making and, by extension, in the leadership with the ‘right’ organisational culture. Smart cities will be required to leverage emerging technologies to give business performance a competitive advantage and use emerging technologies’ applications to build a sustainable competitive advantage.

In the context of cultural diversity and democratization in Nepal, ethical decision making with the central focus on the paradigms of care, justice, and critique is perceived as highly imperative in the life of school principals. However, the way each principal decides to remain ethical differs in practice as his or her own individual and school constructs vary from the other. The difference is much visible in the decision-making process of men and women principals. Considering this, a case study of men and women principals was carried out and the result showed that sociocultural constructs of the principals is primarily responsible to create the differences between them in terms of their ethical decision-making process. Sociocultural context of principals is not in the favor of the women’s decisive role, and thus women principals in their workplace make decisions after having several rounds of consultations. This serves to make their decision constructive as compared to the men principals who hardly consult in the decision-making process.

In critiquing our levels-based group decision simulation, Wilderman and Salas (2009) suggest that more descriptive decision models and more sophisticated simulation techniques would improve the practicality of our model. Black, Oliver, and Paris (2009) employ an agent-based model within an emergent task context to examine a leader's influence on group context for learning and discuss differences in key findings. Although we admit to sins of omission regarding contextual decision theory, we highlight the practicality of our model and contrast this quality with the generalizability of higher-fidelity simulations. Additionally, we admit to sins of envy in that both critiques offer an exciting glimpse into the future of group decision research.

Emotions are recognised as central to all aspects of human experience. Yet, in some cultures and across various professional domains, there is a tendency to suppress emotions and limit their perceived significance. The development of research in neuroscience has allowed for a better understanding of how different parts of the brain interact and function, connecting emotions and cognition. However, despite the advancement in neuroscience, many leaders continue to embrace data-driven decision making, distancing the role of emotions in these critical processes.

This study seeks to better understand how school leaders define leadership and to reflect on the role of emotions and emotion management in two collectivist transitional societies: Liberia and Palestinian Arabs in Israel. A total of 14 school principals (seven from each country) were interviewed for this study. A Restorative Practices framework, combining a focus on cognitive (rational) and emotional (affective) components was used to analyse the data.

The results indicate that a high level of emotional involvement when discussing decisions related to individual students and an effort to suppress emotions when discussing professional decisions related to teachers or the institution. Differences were found in the way emotions were handled in relation to school level (elementary vs. high school), gender, stakeholder (students, teachers) and the principal’s development stage (experience). The Liberian participants perceived a conflict between western culture and the local culture with regard to newly implemented educational policies.