He is among the top internationally recognized scholars in eco design, product-service systems (PSSs), and the circular economy (CE) and involved in several research projects related to these areas. For example, legal aspects of CE business models and public procurement of PSS and CE business models. His research began in 1996 and has been carried out in close cooperation with industry. He is involved in development of ISO standards, for example the new ISO/TC 323 in the field of CE, and appointed associate editor for the Journal of Cleaner Production.