At the Think20 (T20) Summit on October 4 – 6, 2021, policy makers and experts will discuss multilateral challenges for the G20 and other multilateral fora: international finance, climate and growth, trade and investments, vaccines and health, digitalization, poverty and inequalities. Taking place in Milan and online, this 3-day hybrid event is co-hosted by ISPI as the T20 National Coordinator and Chair and by Bocconi University as the T20 Summit Co-Chair.