The youth-focused clothier Abercrombie & Fitch (ANF) reported stronger-than-expected profits for the quarter that included the key holiday season. But revenue came in short of expectations, and the company offered 2013 that was also below what analysts are expecting. Shares tumbled 4.7% early in the session on the stock market today. The company said the economy was challenging for retailers in the holiday quarter. But it benefited in part from