The objective of this study was to integrate Morin's complex tetralogical model and neoinstitutionalism in organizational analysis theory in order to analyze the performance of the Pro-Guaíba Program in institutionalizing the concept of sustainability in an organizational field of twelve co-executor institutions in the Guaiba Watershed Region of Brazil. In order to achieve this, both documentary research and in-depth interviews were conducted with the purpose of finding information to be categorized according to previously defined theoretical constructs. The data analysis was performed through content analysis. As a result, it was possible to obtain a complex and neoinstitutional description of the role of the program in creating the necessary interactions among these institutions in order to structure a sustainable organizational field and, thus, to institutionalize the program's concept of sustainability.
Neoinstitutionalism; Complexity; Sustainability; Organizational fields; Edgar Morin