This article contributes to efforts to integrate power-based, institutionalist, and constructivist perspectives on policy making. Using an analysis of policy designs for assisted reproductive technology, the authors argue that jurisdictional federations are more vulnerable to social con- structions based on widely held perceptions of social groups than functional federations and, to a lesser extent, unitary states. In fact, policy makers in jurisdictional federations tend to rely on communicative discourses aimed at convincing a wide public, whereas those in functional feder- ations need coordinative discourses to obtain the support of actors who play key roles in decision making. Where coordinative discourses prevail over communicative discourses, policy makers will more likely target advantaged groups with restrictive policies.