ABSTRACT
World politics at the end of the twentieth century involves, alongside states, many non-state actors who interact with each other, with states, and with international organizations. This article considers how these interactions are structured in networks, which are increasingly visible in international politics. Some involve economic actors and firms. Some are networks of scientists and experts whose professional ties and ideas underpin their efforts to influence policy (Haas, 1992). Others are networks of activists, distinguishable largely by the centrality of principled ideas or values in motivating their formation. We call these transnational advocacy networks.
