A decade later, as Minister of Economy in the Macri administration, he lifted four-year-old capital controls on the Argentine currency, a mere six days after taking office.

[8] His clients at Tilton Capital included the late María Amalia Lacroze de Fortabat, former chairperson of Argentina's largest concrete manufacturer, Loma Negra.

[7] The vice president of JP Morgan Argentina at the time, Hernán Arbizu, declared that Prat-Gay managed much of this wealth in an offshore hedge fund of his creation with put options against the Argentine peso.

[13] As a Congressman, he worked on projects such as increasing banking security, preventing money laundering and drug trafficking, and an extensive deregulation of the Argentine financial system.

He was named head of the Civic Coalition caucus in the Lower House following Elisa Carrió's poor showing in the 2011 presidential election.

Prat-Gay co-founded the Juntos UNEN ('Together They Unite') alliance with centrist UCR Congressional caucus leader Ricardo Gil Lavedra, and Victoria Donda of the leftist Freemen of the South Movement in January 2013.

[16][17][18][19][20] Prat Gay eliminated export taxes on wheat, corn, meat and fishing, the industry and mining, while it promised to lower the tariff on soy 5% every year.

[26][27][28] On January 19, Prat Gay and Macri went to the World Economic Forum in Davos, Switzerland with Sergio Massa and part of his cabinet looking for investments.

[33] Political intervention in the INDEC figures ended, and the IMF declared in November 2016 that Argentine statistics were again in accordance with international standards.