Martín Lousteau is an Argentine economist and politician. He is National Senator for Buenos Aires and was a National Deputy from 2013 to 2019. At 37 in 2007, he was the youngest Minister for Economy in more than five decades, and also served as the Argentine Ambassador to the US from 2015 to 2017. He has authored five books, including the national best-seller Economía 3D and is a regular contributor to national newspapers.