why is the production possibility frontier called the opportunity cost curve 
the ppf identifies the options when making a decision when you decide on one action you lose the opportunity that the other action provides thus there is an opportunity cost the ppf curve plots this the bottom linethe production possibility curve illustrates the maximum possible output for two products when there are limited resources it also illustrates the opportunity cost of making decisions about allocating resources businesses and economists use the production possibility frontier ppf to consider possible production scenarios by changing resource variables the ppf allows businesses to learn how variables influence production or decide which products to manufacture economists can use it to learn how much of a specific good can be produced in a country while not producing another good to analyze economic efficiency levels and growth 