His research focuses on three main areas: investment law, sanctions, and space law. He explores how nationality has become an instrument for investors to obtain protection under international investment, which is the subject of his forthcoming monograph, Strategic Nationality in International Investment Law (CUP). He also examines the legal and policy challenges of sanctions, including enforcement, circumvention, and their interaction with investment protection. Most recently, he has developed a research agenda on space law, examining the commercialisation of outer space and the application of the law of armed conflict to space activities.