Distinguished Research Professor & Shackelford Distinguished Professor in Taxation Law Emeritus Walter Hellerstein presented “The Role of Digital Platforms in the Collection of Consumption Taxes in the Digital Economy: Lessons from the U.S. Subnational State Experience” at the University of New South Wales International Workshop on VAT in the Digital Era during November in Sydney, Australia. The paper will be published, along with others presented at the workshop, by the Oxford University Press.