How does technology affect cooperation between states? Answers to this question are complicated by the reality that technological developments do not yield linear changes in political responses; both changes and reactions are often non-linear and multifaceted. While the consequences of technological changes for international cooperation are difficult to discern, my dissertation attempts to clarify this relationship by building on an existing framework that identifies four ways technologies may affect international relations. Within this framework, technological effects can be straightforward changes in states’ capabilities or nuanced shifts in their beliefs, for example. As these effects can alter countries’ strategic considerations, I derive hypotheses that describe the conditions under which cooperative behavior can be expected. With original data on incidents of cooperation and non-cooperation (related to developments in agricultural biotechnology and cyber security), fuzzy set qualitative comparative analysis is employed to determine whether cooperation is systematically related to the presence of technological effects and their respective conditions. Ultimately the dissertation aims to demonstrate that its approach affords a more comprehensive understanding of technology’s relationship to international relations. Dissertation: "Technology and Cooperation in World Politics"