The development of agribusiness sector is given gradually increasing importance. This works aims at identifying the elements that create the successful ecosystem for agricultural development, their benefits and application in agri-food systems; additionally, to bring on a light of the role of agricultural policies in these processes. For this purpose, the authors have carried out an analysis of the concern related literature and present a preliminary theoretical framework/model as a tool for supporting local development and incorporate a successful effective ecosystem. The key implications of this paper include an increased attention to agricultural research, to the role of the collaboration between relevant stakeholders, as well as of the agriculture, which uses information technologies for the better utilization of natural resources, and what is the most important is, the role of agricultural policies.