[6][7] Panizza is known for co-establishing the concept of original sin in development economics, alongside economists Barry Eichengreen and Ricardo Hausmann.
[27][28] In 2017 he co-authored (with Jeromin Zettelmeyer and Eike Kreplin) a Peterson Institute working paper aimed at assessing debt sustainability in Greece[29][30] and contributed (with Jeromin Zettelmeyer, Beatrice Weder di Mauro, Charles Wyplosz, Richard Portes, Miguel Poiares Maduro, Barry Eichengreen, and Emilios Avgouleas) to the CEPR Independent Report on the Greek Official Debt.
He wrote a Project Syndicate piece with Ricardo Hausmann discussing the possibility of creating an odiousness rating system[33][34] and worked with Mitu Gulati on Venezuela's Hunger Bonds.
[45] In 2023 he co-authored (with Ricardo Hausmann, Carmen Reinhart and a team at the Harvard Growth Lab) a policy paper with a plan for the economic recovery of Lebanon.
[48][6] Panizza is a CEPR Research Fellow,[49] and a former editor of Economia (the Journal of Latin American and Caribbean Economic Association, LACEA).