He completed his basic and intermediate studies at the Colegio San Ignacio El Bosque, in Santiago, from where he graduated in 1979.

Later he studied commercial engineering at the Pontificia Universidad Católica (PUC), between 1980 and 1985, where he won the award for the best graduate of his promotion.

He has also been a national and international consultant for various central banks and governments of different countries in Latin America, Eastern Europe, Asia, and Africa.

[7][8] Vergara, together with the former managing director of the IMF, Christine Lagard, in December 2009, was part of the team of advisers to Sebastián Piñera, the center-right presidential candidate.

His name was proposed by the first government of President Michelle Bachelet to replace Jorge Desormeaux on the Board of the Central Bank.