Guided by NSE theory, the Department of International Development Cooperation (DIDC) aims to put theory and its policy tool, the “Growth Identification and Facilitation Framework (GIFF)”, into practice, following the philosophy of “knowing and achieving being one”. On the one hand, the Department conducts research on the development experiences of China and other countries. On the other hand, it uses the GIFF to formulate development strategies and provide policy advice for governments of developing countries. The Department strives to support policymakers of developing countries by providing an integrated one-stop service of “Economic Assessment - Diagnosis and Evaluation of Special Economic Zones - Investment Promotion”. This approach also takes into account the current developmental needs of China, thereby achieving mutual benefit and “win-win” cooperation.