Day 2 of Business Models Week! Today we're talking about the business model your kid interacts with most: retail. Spoiler alert—it's not as simple as "buy stuff, sell stuff." What's a Retailer, Actually? A retailer is the last stop on a product's journey from factory to your shopping cart. They don't make  the products. They buy  them from manufacturers or distributors, mark up the price, and sell them to you and me. Think: Target, Walmart, Best Buy, your local bookstore, Gam