A matemática do Tesouro Direto

Abstract

This paper presents a study of the mathematics used to calculate prices and rates existing in the Brasilian Direct Treasury. It presents the rules and regulations established by the National Treasury for the purchase and sale of government securities. It discusses how is the price of a security, using elements of Financial Mathematics. It features how is done the calculation of each of the five securities, highlighting the important points to decide the best time to buy or to sale in advance a security.