By Daniel Kline Retail stocks have taken a beating, but inflation, supply chain woes, and other cost concerns don’t tell the full story. Retail stocks have seen huge price drops because pretty much every retailer has issued a cautious guidance due to supply chain issues and increased costs. Retailers including Walmart (WMT) – Get Walmart Inc. Report, Target (TGT) – Get Target Corporation Report, Amazon (AMZN) – Get Amazon.com Inc. Report, and Costco (COST) – Get Costco Wholesale Corporation Report have all seen their share prices fall. Target shares, for example, are down almost 40% year-to-da…