Book excerpt: The coronavirus disease (COVID-19) pandemic is accelerating digital transformation across Asia and the Pacific. Digital platforms have become prominent intermediaries or marketplaces that allow the exchange of goods, services, and information. They are opening new transaction channels and ways of using resources while lowering service costs and enhancing market efficiency. This volume of background papers, prepared for the Asian Economic Integration Report 2021, examines the scope and potential benefits of digital platforms, as well as the associated policy issues and challenges. It proposes measures and policies to help maximize social and economic gains while alleviating adverse effects.