Demand and supply curves:

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Demand and supply curves are the basic tools used in economics to analyze market actions, and they are useful to anyone who wants to understand how markets work, including businesses, policy makers, and everyday consumers. They help to explain how changes in price, quantity, and other variables affect the behavior of buyers and sellers in a particular market, and can be used to make predictions about future market outcomes. While commodities brokers may use these curves as part of their analysis, they are not the only ones who benefit from understanding them. Similarly, while economics professors may use them in their teaching, they are not useful only to academic audiences. Advertisers may use economic concepts when designing marketing campaigns, but demand and supply curves alone are not the primary focus of their work.

Demand and Supply Curves