عنوان مقاله [English]
Considering the importance of the topic, the purpose of this research is to examine the impact of sister cities on urban development with an emphasis on urban diplomacy and national development. In this regard, using library and field studies, effective factors were identified in establishing sisterhood relations between metropolises and urban diplomacy of Shiraz metropolis. Then, using interviews with experts and based on the Delphi method, the identified factors were finalized. The statistical community is made up of university professors, experts, managers and engineers of Shiraz metropolis with work and research experience in the field of sister cities, urban diplomacy and national development. Experts are selected using the purposeful sampling method. In the continuation of the research, using the Delphi method, including 4 main indicators of stable security, economic development, human resources development, socio-cultural development and 26 related sub-indices were finalized. Then, using the identified factors and based on Interpretive Structural Modeling (ISM), the local model related to the establishment of sisterhood relations between metropolises and urban diplomacy is presented. The relationships between the factors show the effectiveness for improvement and creating the basis for the improvement and urban development of Shiraz metropolis and presence in transnational relations.