Giovanni was an invited speaker at the 2026 ECB Forum on Central Banking, held June 29 – July 1 in Sintra, Portugal — the European counterpart to Jackson Hole. He presented "The immigration impact on population, labor productivity, investments and TFP in OECD countries," coauthored with Gaetano Basso (Banca d'Italia) and Mitali Mathur (UC Davis), as the featured paper in the session on migration and European productivity. The session was chaired by ECB Vice-President Boris Vujčić, with Hillel Rapoport (Paris School of Economics) as discussant.

The Forum's audience included Christine Lagarde, Kevin Warsh, Andrew Bailey, and Tiff Macklem, along with senior central bankers and macroeconomists from around the world. The full program and video of Giovanni's presentation are available here:
https://www.ecb.europa.eu/press/conferences/html/20260629_ecb_forum_on_central_banking.en.html