The role of the agricultural sector in the light of the structural approach is considered. The close connection between the share of the agricultural sector and the level of the economic development in the EU countries and the Balkan countries is analysed. A parallel of these dependencies is made with the differences in the regional economic development in Bulgaria – the connection between the GDP, the people employed in agriculture and the degree of regional economic development. Based on the obtained results, summaries and conclusions are made about the possibilities for achieving integrated regional development.
Keywords: structural changes, agricultural sector, regional differences