Argentina limited the use of cash in the country's financial markets as President Cristina Fernandez de Kirchner ramps up oversight of currency transactions.

The government will restrict daily cash transactions to 1,000 pesos ($231) per person, down from 10,000 pesos, according to a statement today in the Official Gazette. The measure affects activity in the stock and bond markets, investment funds and in the futures markets. Operations above the limit will have to be done through Argentine bank accounts that are authorized by the central bank.

"They are forcing a higher level of formality in the economy, as cash transactions allow more irregularities," said Felipe Hernandez, an analyst at RBS Securities Inc. in Stamford, Connecticut. "This is in line with other measures to prevent money laundering, for which the government has been under a great deal of pressure."