His research interests involve public policy, economics, and law for information and communication technology, including privacy, electronic markets, and social networks. He is also working on the evolution of work and wealth distribution as a result of advances in information and communication technologies. His previous research has covered digital transactions for content, software, and services; dynamics of business models; industry convergence; trust and fraud in electronic markets; virtual world economies; business models for online entertainment; as well as the implications of compatibility standards for competition policy.