Iranian Association for Management of Technology Journal of Science and Technology Policy 20080840 9 1 2016 04 20 english title english title 1 13 12943 FA Gholamali Montazer Associate Professor of Information Technology Engineering, Tarbiat Modares University, Tehran, Iran Abolghasem Bayat MA of Information Technology Management, Tarbiat Modares University, Tehran, Iran Journal Article 1970 01 01 Information and Communication Technology (ICT) has become a key driver of economic growth over the past decade. This industry also play a significant role in Iran's economy and has emphasized in 20-year's vision document and 5th national's development plan. The aim of this study is to estimate the contribution of ICT sector to GDP in Iran's 6th national development plan (2016-2020) using forecasting methods. So we have estimated Iran's GDP and ICT value added with polynomial curve fitting, ARIMA and neural networks models. The calculations showed that the contribution of ICT Sector to GDP will be 4.57, 6.2 and 3.7 percent with mentioned methods, respectively. The comparison of error characteristics showed that neural network method estimation had more performance relatively. Information and Communication Technology (ICT) has become a key driver of economic growth over the past decade. This industry also play a significant role in Iran's economy and has emphasized in 20-year's vision document and 5th national's development plan. The aim of this study is to estimate the contribution of ICT sector to GDP in Iran's 6th national development plan (2016-2020) using forecasting methods. So we have estimated Iran's GDP and ICT value added with polynomial curve fitting, ARIMA and neural networks models. The calculations showed that the contribution of ICT Sector to GDP will be 4.57, 6.2 and 3.7 percent with mentioned methods, respectively. The comparison of error characteristics showed that neural network method estimation had more performance relatively. https://jstp.nrisp.ac.ir/article_12943_ca1798aa506010cebe762562dd320793.pdf