2013 –Medal of Honour, awarded by the Order of the Economists of Brazil
1991 – Lanchester Prize 1990 for the book “Two-Sided Matching. A Study in game theoretic modeling and analysis” awarded by the Operations Research Society of America (with Alvin Roth).
2006 - Henrique Simonsen Prize, awarded by the Brasilian Review of Economics.
1996 –Adriano Romariz Duarte Prize, awarded by the Brasilian Review of Econometrics.
2001 – Haralambos Simeonides Prize, awarded by the National Association of Graduate Centers of Economics -ANPEC-BRAZIL (with David Perez-Castrillo).
2017 - Fellow of the Game Theory Society
2015 – Elected for the Brazilian Academy of Sciences
1993 – Fellow of the John Simon Guggenheim Foundation
2003 – Fellow of the Econometric Society
2015 - Economic Theory Fellow
2015 - “Special issues on Matching: Theory and Applications, dedicated to Marilda Sotomayor on the occasion of her 70th birthday” – Journal of Dynamics and Games
2015 – Chair of the Latin American Standing Committee of the Econometric Society
1994/1997 – Council Member of the Econometric Society
2003/2009 - Council Member of the Econometric Society
2012 /2015 - Council Member of the Econometric Society
2005 – Nominating Committee for councils of the Econometric Society
2013 – Nominating Committee for Officers of the Econometric Society
2014 – Nominating Committee for Fellows of the Econometric Society
1998 – Council Member of the Game Theory Society
1999 - Charter Member of the Game Theory Society
2006 – Patron of the graduating students of Economic Sciences of the Univ. of São Paulo, at Ribeirão Preto.
2010 – Celebration of the 20th anniversary of the book: Two-sided Matching: A Study in Game Theoretic Modeling
and Analysis ( with Alvin Roth) in the meeting “Roth and Sotomayor. Twenty years after”, Duke University.
2012 - Opening Lecture, Brazilian Meeting of ANPEC
2014 – Opening Lecture, Department of Economics of ESALQ – São Paulo
Associate Editor, Econometrica, 1990-1993.
Associate Editor, International Journal of Game Theory, since 2003.
Editor of the Special Issue in honor of David Gale, for the International Journal of Game Theory. – 2006, 2007.
Editor of the session on Game Theory for the encyclopedia: Complex Systems and Sciences, Springer – 2006-2008, 2015