The central bank on Friday cut the central parity rate by 0.1 percent to 6.2152 per dollar.

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The yuan is allowed to rise or fall by 0.5% from the central parity rate each day.

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If the central banks were properly calibrating liquidity to maintain parity between the statutory gold price and the market gold price of the dollar and euro, then the trade at the gold windows would remain inert.

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