Sharif University of Technology Scientia Iranica 1026-3098 22 3 2015 06 01 Fractional order grey relational analysis and its application Fractional order grey relational analysis and its application 1171 1178 3709 EN Lifeng Wu College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Sifeng Liu College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Ligen Yao School of Economics and Management, Hebei University of Engineering, Handan 056038, China Liang Yu College of Economics and Management, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China Journal Article 2014 06 18 The main idea behind this study is introduce fractional order grey relational degree to analyze the relationship between sci-tech input and economic growth of China. Based on fractional order di erence operator, fractional order grey relational analysis (FGRA) is de ned. The e ect of di erent orders on grey relational analysis is discussed. Two examples show the process and eciency of its application. Grey Relational Analysis fractional order R&D GDP high technology output value https://scientiairanica.sharif.edu/article_3709_62344970983251bd254951c87b5dac6e.pdf