Jeffrey Sachs
In 1985, under the fourth (and final) term of President Paz Estenssoro, the economic situation in Bolivia was undermined with a galloping hyperinflation (inherited from Hernán Siles Zuazo) and the country was unable to pay its debt to the International Monetary Fund (IMF). A plan was drawn by Jeffrey Sachs, Professor at Harvard University, and at that time active as economic adviser to the Bolivian government. Bolivia was the first country where Jeffrey Sachs could test his theories.