He was an economist at the International Monetary Fund from 1995 to 1998, professor at Universidad Torcuato Di Tella since 1999, where he helped found and directed the Center for Financial Research from 1999 to 2007, Chief Economist at the Central Bank of Argentina in 2002, a visiting professor of public policy and macroeconomics at Harvard University's John F. Kennedy School of Government,[4] Senior Financial Sector Adviser for Latin America and the Caribbean at The World Bank from 2006 to 2007, and Head of Emerging Markets Strategy and Latin American Research at Barclays Capital from 2007 to 2010.

Together with Federico Sturzenegger, he prepared a popular classification of de facto exchange-rate regimes, and contributed the monetary and exchange rate policy chapter of the last edition of the Handbook of Development Economics.

Sudamericana)[13] and another one on the decline of the post crisis economic boom with historian Marcos Novaro (Vamos por Todo: La 10 decisiones más polémicas del modelo, 2013, Ed.

Sudamericana), and an essay on the futuro of work in the developing world ("Después del Trabajo: El empleo argentino en la cuarta revolución industrial", 2018, Ed.

[15] Stuzenegger and Levy Yeyati highlighted that most of the empirical literature on exchange rate regimes had been using the IMF de jure classification based on official sources, despite well-known inconsistencies between reported and actual policies.