Thank you very much for considering my recommendation might be helpful and asked me for the letter. However, I cannot write a letter with sufficiently useful information for those who only took my courses or only work with me briefly. Currently I adopt the following policy for writing recommendation letters.
Please use my official email address: hudn at sustc dot edu dot cn
Title: Associate Professor
Department: Department of Finance, Faculty of Economics and Business Administration
Institute: Southern University of Science and Technology
Address: Hui Garden Buidling 3-3, Southern University of Science and Technology, Shenzhen, Guangdong, China