Which chains are afraid to pricematch their own online operations? When Target (NYSE:TGT), Sears (NASDAQ:SHLD) and Best Buy (NYSE:BBY) agreed to start matching their own sister channels, it looked like a wave of common sense had overtaken retail. Ah, but Walmart (NYSE:WMT), Kohl's (NYSE:KSS) and JCPenney (NYSE:JCP) still refuse to match. Shopping site Cheapism.com compared and contrasted all such price-match policies, not merely based on matching online but on how strict they are on matching anything. Some interesting patterns emerged. Story.