A proposal by Australia's central bank to revise interchange regulations could result in higher card-acceptance fees for some merchants, according to the Australian Retailers Association.

The Reserve Bank of Australia said last week it would maintain its supervision of interchange rates because competition had yet to lower card costs. The central bank also said the "difference in regulatory treatment" between debit cards carrying such international brands as MasterCard Inc. and Visa Inc. and those of the domestic EFTPOS network "may be detrimental to competition."

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