Defending state-centric regionalism through mimicry and localisation: regional parliamentary bodies in the Association of Southeast Asian Nations (ASEAN) and Mercosur

The creation of parliamentary bodies for regional organisations such as Association of Southeast Asian Nations (ASEAN) or Mercosur seems to be at odds with the intergovernmental logic on which these organisations rest. We approach this puzzle from the perspective of norm diffusion theory. In the article we argue that transnational legislative bodies in Southeast Asia and South America have been primarily established to retain the respective organisation's 'cognitive prior', which in both cases rests upon deeply entrenched corporatist norms and ideas. We test our theoretical claims by a comparative study on the emergence and evolution of the ASEAN Inter-Parliamentary Assembly and the Mercosur Parliament.