This article discusses the center-periphery relation in the context of modern Croatian society & models of metropolitan participation in programs for revitalization of the periphery. Using the scheme ..."metropolis-periphery" as a consequence of acts of identity, the authors place the periphery within the network of cooperative relations that in turn becomes a constructive model in the formation of social integration. A successful (post)modernization process based on endogenous regional development results in the ability of metropolitan actors to revitalize the periphery. From the perspective of cooperative relations, the term "metropolis" includes both the basic metropolitan community (the capital) & the entire area of community (imaginary metropolis). The formation of local community identity is the most important item on the list of revitalization objectives for the Croatian periphery. 14 References. Adapted from the source document.