Under Tinoco's chairmanship of the central bank, interest rates were liberalised with little effective banking supervision, and Banco Latino, which in 1988 was the central bank's largest debtor, went from the country's fifth-largest to second-largest bank.
Tinoco Sr created the law firm Escritorio Tinoco in 1914; Tinoco Jr would later take over the firm and along with his partners make it "a powerful player in the Venezuelan legal market".