The level of margin debt in relation to the total valuation of the Big Board stays modest.

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The Federal Reserve Board requires long equity margin accounts maintain a balance of 50% equity, 50% margin debt.

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Argentina did not choose a pure currency-board model: the government has a thin margin of discretion (working mainly through changes in bank reserve requirements) which it has used, especially to ease strains in the financial sector.

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But they must abide by Federal Reserve Board rules barring the use of the credit lines for purchasing or carrying margin stock.

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