That the Harry Potter stories are primarily about good and evil is undeniable, and no fictional character since Darth Vader has embodied the latter quality as thoroughly as Lord Voldemort. The rapidly growing psychological literature on psychopathy can provide some insight into Voldemort’s evil nature. But what of his followers? Are the legions of Death Eaters similarly psychologically disturbe...

We develop and test a model linking ethical leadership with unit ethical culture, both across and within organizational levels, examining how both leadership and culture relate to ethical cognitions and behaviors of lower-level followers. The data were collected from 2,572 U.S. Army soldiers representing three organizational levels deployed in combat. Findings provide limited support for simple...

The findings from this cross-sectional study on 27 corporate employees reveal relationships between leader and follower leadership behaviors and follower identity with the leader. A positive relationship was found between the leaders’ follower-centered leadership and followers’ follower-centered leadership, and the leaders’ capable manager leadership and followers’ capable manager leadership. F...

This paper considers the distributed H∞ leader-following tracking problem for a class of discretetime multi-agent systems with a high-dimensional dynamic leader. It is assumed that output information about the leader is only available to designated followers, and the dynamics of the followers are subject to perturbations. To achieve distributed H∞ leader-following tracking, a new class of contr...

The 2016 U.S. presidential election has witnessed the major role of Twitter in the year’s most important political event. Candidates used this social media platform extensively for online campaigns. Meanwhile, social media has been filled with rumors, which might have had huge impacts on voters’ decisions. In this paper, we present a thorough analysis of rumor tweets from the followers of two p...

The problem of computing the strategy to commit to has been widely investigated in the scientific literature for the case where a single follower is present. In the multi-follower setting though, results are only sporadic. In this paper, we address the multi-follower case for normal-form games, assuming that, after observing the leader’s commitment, the followers play pure strategies and reach ...

Previous research on social dilemmas has shown that leadership can be an effective means to supervise a common resource and that group members prefer a leader when confronted with high variance between group members’ harvests. In this article, the authors investigate how leaders and followers react to variance. The results of an experimental study indicate that leaders are especially likely to ...

This paper considers the distributed H∞ leader-following tracking problem for a class of discretetime multi-agent systems with a high-dimensional dynamic leader. It is assumed that output information about the leader is only available to designated followers, and the dynamics of the followers are subject to perturbations. To achieve distributed H∞ leader-following tracking, a new class of contr...

This paper investigates energy efficiency for twotier femtocell networks through combining game theory and stochastic learning. With the Stackelberg game formulation, a hierarchical reinforcement learning framework is applied to study the joint average utility maximization of macrocells and femtocells subject to the minimum signal-to-interference-plusnoise-ratio requirements. The macrocells beh...

The paper studies the formation merging problem for a leader-follower network. That is, how to control a team of agents called followers so that they are merged with a team of agents called leaders to form a larger globally rigid formation. Under the premise that a group of leaders move in a globally rigid formation with their synchronized velocity known to the followers, we show that the follo...