Friedrich Kratochwil engages critically with the emergence of a global administrative law and its consequences for the democratic legitimacy of global governance. While he makes important contributions to our understanding of global governance, he does not sufficiently discuss the differences in the institutional design of new forms of global law-making and their consequences for the effectiveness and legitimacy of global governance. I elaborate on these limitations and outline a comparative research agenda on the emergence, design, and effectiveness of the diverse arrangements that constitute the complex institutional architecture of contemporary global governance.