Castles, FrancisObinger, Herbert2015-12-080140-2382http://hdl.handle.net/1885/30963This article focuses on the notion that the policies and politics of states and nations constitute distinct worlds or clusters. We begin by examining the concept of clustering as it has emerged in the literature on policy regimes and families of nations.Keywords: conceptual framework; convergence; European Union; globalization; OECDWorlds, Families, Regimes: Country Clusters in European and OECD Area Public Policy200810.1080/014023807018351402015-12-08