The study aims to explore how startup leaders communicate their vision and use strategic ambiguity in uncertain and dynamic environments, as well as how employees understand the vision. Transitioning from being an entrepreneur to being a leader is challenging. Effective leadership communication in startups is crucial due to its impact on survival rates of businesses and the more direct interaction with employees, compared to established organizations. Previous studies found that effective vision communication motivates followers, thus contributes to the startup’s growth. However, how startup leaders communicate and how members perceive vision in constant changes remain underexplored. The study addresses this gap by investigating how startup leaders use vision communication and its impact on employees' perception and organizational performance as well as how startup leaders use ambiguity as a strategy in uncertain situations. The data was collected through multiple qualitative methods, including observations, case studies, and semi-structured interviews, and analyzed by constant comparison method. The study found that early startup entrepreneurs often communicate a flexible vision that evolves as they bring on new clients and the organization develops. Employees interpret the vision by executing their tasks that are aligned with the vision. Strategic ambiguity is rare in smaller startups due to frequent interactions and task-oriented communication pattern. Theoretical and practical implications of the findings are discussed.

This dissertation addresses two issues in the literature on informal leadership emergence (i.e., the process of an individual without a formal leadership position coming to exert leadership influence over others). First, scholars have focused on situations in which a focal person’s leadership claiming is aligned with a peer’s leadership granting. In doing so, past work has overlooked instances of misalignment, that is, when a focal person claims more leadership than a peer grants (i.e., overclaiming) or when a peer grants more leadership than a focal person claims (i.e., underclaiming). Second, the consensus in the literature suggests that emerging as an informal leader provides more beneficial outcomes to the individual and their team than non-emerging. However, I argue that this assumption may not be warranted in some situations, for example when a focal person’s lack of claiming is aligned with a peer’s lack of granting. Drawing on the leadership identity claiming and granting framework, I postulate four forms of informal leadership (non)emergence, namely (1) dyadic emergent leadership, (2) dyadic leadership absence, (3) overclaiming, and (4) underclaiming. Based on role theory, I then build theory regarding their effects on behavioral consequences through affective and cognitive mechanisms. More precisely, I suggest that forms characterized by congruence in leadership claiming and granting (as opposed to forms characterized by incongruence) result in increased peer backing-up behavior towards the focal person (mediated by enthusiasm and respect) and reduced peer social undermining (mediated by anger and revenge cognitions). I further hypothesize asymmetrical incongruence effects and consider a focal person’s prosocial motivation as a boundary condition. I conducted three studies to examine my theorizing. In Pilot Study 1 (N = 199), I adapted and validated a measure to assess leadership claiming and granting. In Pilot Study 2 (N = 151), I shortened established measures. In the Main Study (N = 279), I tested my theoretical predictions yielding mixed findings. Whereas I find support for the congruence effect on backing-up behavior, all other hypotheses were not supported. I report supplemental analyses to examine these null results and discuss the theoretical, empirical, and practical implications of this research.

Unethical behavior is a phenomenon that is unavoidable in the workplace. Ethical transgressors, when caught, often receive feedback regarding their actions. Though such moral feedback—feedback that is in response to an ethical transgression—may be aimed at curtailing future unethical behavior, I seek to demonstrate that under certain conditions, moral feedback may promote subsequent unethical behavior. Specifically, I propose that moral intensity and affective tone are two primary dimensions of moral feedback that work together to affect ethical transgressor moral disengagement and future behavior. The notion of moral disengagement, which occurs when self-regulatory systems are deactivated, may account for situations whereby individuals perform unethical acts without associated guilt. Despite the burgeoning literature on this theme, research has yet to examine whether feedback from one individual can influence another individual’s moral disengagement. This is surprising considering the idea of moral disengagement stems from social cognitive theory which emphasizes the role that external factors have in affecting behavior. With my dissertation, I draw from research primarily in social psychology to explore how moral feedback affects transgressor moral disengagement. To do so, I develop a typology of moral feedback and test how each moral feedback type affects transgressor future behavior through moral disengagement.