David O’Brien joined the Peterson Institute for International Economics (PIIE) as vice president for external affairs in October 2020. For more than a decade, he has closely collaborated with PIIE on a host of research and policy initiatives on immigration, gender equity, and the extension of PIIE insights. O’Brien joins PIIE from EY, having recently retired after a 33-year career, where he served as a partner and member of the executive team with responsibilities as the Americas Chief Communications Officer, Chief Marketing Officer, Chief of Staff to the Chairman, and a range of client service roles. While at EY, he positioned the brand as a market leader in talent engagement, culture, inclusion, quality, and business insights, helping to drive broad recognition of EY as among the best places to work, top professional service brand, thought leader, and top growth performer. He serves on a number of not-for-profit boards promoting education, inclusion, human welfare, and US-China relations. O’Brien has an MBA from the University of Pennsylvania, Wharton School of Business, and an undergraduate degree from Wheeling Jesuit University.