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More merchant acquirers are using their retail and transaction data to show merchants that accepting cards encourages consumers to spend more, David Fish, senior analyst at Maynard, Mass-based Mercator Advisory Group Inc., said yesterday during a teleconference. The data also can help merchants create targeted loyalty programs that boost customer acquisition and retention, Fish said. "Merchants need to be shown the value of taking cards more clearly," he said, adding that merchant acquirers are "just starting" to use their data for those purposes.










