Collaborative learning has important group-level benefits, yet most studies in higher education only focus on individual benefits of collaborative learning experiences. This study extends these insights by testing a model in which teamwork quality mediates the impact of several compositional differences (gender, nationality and teamwork expertise diversity, as well as need for cognition disparity) on groups’ cognitive complexity in a sample of 159 student groups. The results support the mediating role of teamwork quality, and have important practical implications for the design of student groups in higher education.

The decision-making literature emphasizes that in high-stake decisions the characteristics of individual decision-makers, their interpretation of decision situations, and their social ties play an important role in decision outcomes. Despite these results, research on small- and medium-sized enterprises has only partially covered these influences. In a sample of 565 small-business owners, this study identifies the extent to which these characteristics and social ties affect decision effectiveness and the extent to which their impact is mediated by evaluative judgements of the decision situation. Our results suggest that the interplay between human capital and social capital affects decision outcomes via evaluative judgments and this effect is moderated by decision content, in such a way that depending on decision content (internal versus external focus) entrepreneurial experience and the breadth of social capital are either assets or liabilities for decision effectiveness.

Research on virtual teams (VTs) has proliferated in the last decades. However, few clear and consistent theoretical attempts to integrate the literature on VTs in a systemic way have emerged. This paper uses the complex adaptive systems (CAS) perspective to integrate the literature on emergent states in VTs. According to this general framework, VT effectiveness depends on the interaction between three levels of dynamics: local, global and contextual. Team cognition, trust, cohesion and conflict are described as states that emerge from the interactions among the VT members and as parts of global dynamics, they impact on VT effectiveness, and in the same time they are influenced by the outcomes of the VT. The insights on this bidirectional causality as well as other benefits of using the CAS framework to improve our understanding of VTs are discussed in the paper. It also provides an overview of artificial simulation models as well as simulation results concerning the emergence of the four states described in the CAS framework and discusses several ways to improve the accuracy of the simulation models using empirical data collected in real VTs.