Economy

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Federal Reserve Chairman Ben Bernanke outlined a new set of mortgage-lending rules Tuesday, which will be aimed at shielding future homebuyers from risky lending practices and avoiding a repeat of the country's current mortgage crisis.

Question/Comment: Maybe 10 years ago I heard that cash was the costliest payment to exchange or process by a retailer. Also credit was costlier than debit for a retailer to have processed by a bank. Lately, I've heard just the…