We all know markets for pizza, sneakers, and streaming services. But who decides how much a nurse is paid, why a factory rents for thousands a month, or what sets the price of farmland? Behind every product you buy, another set of markets hums quietly in the background: the markets for the inputs used to make things. In this chapter, let’s look at those factor markets, where the same forces of supply and demand you already understand set the prices of labor, capital, and land.