Applying the theory of dynamic capabilities, this research explores the procedures and the outcomes of adaptations in disaster relief nonprofit organizations. Using the in-depth interviews and survey data from the managers of disaster relief nonprofit organizations in Arizona, Florida, and New Jersey, this research answers three key questions: 1) How do disaster relief nonprofit organizations apply their dynamic capabilities to make adaptations? 2) What are the impacts of dynamic capabilities, including sensing, learning, integrating, and coordinating capabilities, on the performance of disaster relief nonprofit organizations in service provision, public policy engagement, and community social capital cultivation? 3) Taking the network of Voluntary/Community Organizations Active in Disasters (VOAD/COAD) as an example, can the dynamic capabilities of disaster relief nonprofit organizations explain the variation of network engagement and the gained benefits from the network among the VOAD/COAD members? The results show that the procedures of adaptation in disaster relief nonprofit organizations are associated with a rhizomic rather than a linear approach, which is implied by the theory of dynamic capabilities. Strategic connectivity, temporal simultaneity, and directional flexibility are the three critical features of the rhizome model. Additionally, dynamic capabilities significantly influence organizational performance in service provision, public policy engagement, and social capital cultivation, although sensing, learning, integrating, and coordinating capabilities shape performance differently. Moreover, network engagement, as an uncommon practice for disaster relief nonprofit organizations, is also impacted by the dynamic capabilities of disaster relief nonprofit organizations. The result shows that dynamic capabilities, especially learning capability, can promote the acquired benefits of disaster relief nonprofit organizations by bringing them more support in volunteer management and financial opportunities. The findings not only advance the current discussion about nonprofit engagement in disaster management but also add knowledge on dynamic capabilities in the third sector. The exploration of adaptations in disaster relief nonprofit organizations and the operation of the VOAD/COAD network provides valuable implications to both nonprofit managers and government officials.

Traditionally, emergency response is in large part the role and responsibility of formal organizations. Advances in information technology enable amateurs or concerned publics to play a meaningful role in emergency response. Indeed, in recent catastrophic disasters or crises such as the 2010 Haiti earthquake and the 2011 Japan earthquake and nuclear crisis, participatory online groups of the general public from both across the globe and the affected areas made significant contributions to the effective response through crowdsourcing vital information and assisting with the allocation of needed resources. Thus, a more integrative lens is needed to understand the responses of various actors to catastrophic crises or disasters by taking into account not only formal organizations with legal responsibilities, but also volunteer-based, participatory groups who actively participate in emergency response. In this dissertation, I first developed an “event-driven” lens for integrating both formal and volunteer-based, participatory emergency responses on the basis of a comprehensive literature review (chapter 1). Then I conducted a deeper analysis of one aspect of the event-driven lens: relationships between participatory online groups and formal organizations in crisis or disaster situations. Specifically, I explored organizational and technical determinants and outcomes of forming such relationships (chapter 2). As a consequence, I found out three determinants (resource dependence, shared understanding, and information technology) and two outcomes (inter-organizational alignment and the effectiveness of coordinated emergency response) of the relationship between participatory online groups and formal organizations and suggested seven hypotheses. Furthermore, I empirically tested these hypotheses, focusing on the 2015 Nepal earthquake case (chapter 3). As a result, I found empirical evidence that supports that shared understanding and information technology improve the development of the relationship between participatory online groups and formal organizations. Moreover, research findings support that the development of the relationship enhances inter-organizational coordination. Lastly, I provide implications for future research (chapter 4). This dissertation is expected to contribute to bridging the disconnect between the emergency management literature and the crisis informatics literature. The theoretical insight from inter-organizational relations (IOR) theory provides another contribution.