Business to a degree works as the applied science brother of economics. So, even though not all theoretical economical knowledge is directly applicable to business (especially in macroeconomics), concepts from economics like supply and demand equilibrium, opportunity costs, marginal costs, economies of scale, and so on are still very useful for entrepreneurs to be familiar with. 

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https://www.forbes.com/sites/abdoriani/2021/07/06/using-evolutionary-thinking-to-gain-an-advantage-in-the-realm-of-startups/?sh=5c61143028e5