by Leah Jessen. How that workin' out for ya? A minimum wage of $12.55 an hour in Oakland, Calif., may be the culprit for a Wal-Mart store’s closure. Last Friday, Wal-Mart announced it will close 269 stores globally—including 154 locations in the United States—impacting about 10,000 associates here at home. “The minimum wage in the city of ... MORE