This article seeks to explain when governments are more likely to take an intergovernmental approach to resolving global collective problems rather than step back and encourage (or simply allow) nongovernmental actors to become the main global governors. The authors suggest that an important factor driving this choice is the domestic ideological leanings of powerful states toward greater or lesser government activism. Such ideologies connect domestic preferences to international ones. They also lead to the establishment of domestic institutions that, in turn, facilitate the emergence of international organizations. Using these arguments, the authors develop a set of inferences regarding the likelihood that governments will establish and join intergovernmental organizations. The authors test their hypotheses through a study of global governance in the education realm, and also apply a series of statistical analyses covering developments in all issue-areas over the last century and a half.