Walk into a grocery store in almost any American city, and you will probably recognize the names on the signs. Walmart, Kroger, Publix, Aldi, and other established retailers dominate much of the shopping experience, while genuinely new supermarket chains remain relatively uncommon. That can seem surprising when grocery prices are a frequent source of frustration and shoppers are constantly looking for better deals. You might expect rising costs to create opportunities for new businesses promising cheaper food or a different shopping experience. The reality is more complicated because opening a grocery store is expensive, operating one profitably is difficult, and competing with established chains requires more than a good idea. New grocery businesses do emerge, but many expand slowly, target specific customers, or grow by acquiring existing stores instead of building an entirely new chain.