Jayan is a Professor of Economics at the Indian Institute of Technology Delhi. His research deals with macroeconomic issues of developing countries, mainly labour and industrialization. He had also been a Member of the State Planning Board, Government of Kerala (2016-2021). While India has been the primary focus of his research, Jayan has been maintaining a lively academic interest on China and East Asia as well. He contributes regularly to media outlets, including the Hindu, Frontline , and Livemint, and his research has been cited in the Government of India’s Economic Survey, BBC, and the New York Times.