 The Plano Trienal, under this point of view, was important to improve the planning efforts of the country.The failure of the Plano Trienal created a serious institutional crisis.João Goulart, in a desperate attitude at the end of the plan, began to make use of decrees, trying to nationalize several private oil industries, and expropriate some areas for an alleged land reform, causing anger in the Brazilian medium and high classes, worn by the bad economic conduct, which eventually stimulated the overthrow of the government.