Explain why societies cannot make a choice above their production possibilities frontier and should not make a choice below it.

The Production Possibilities Frontier (PPF) is a curve that illustrates the various combinations of two goods or services an economy can produce efficiently given the available resources and technology. Points on the PPF represent the maximum possible production of both goods when resources are efficiently allocated. Points above the PPF are unattainable, while points below the PPF indicate underutilization of resources.

A society cannot make a choice above its PPF because it represents an unattainable level of production, given the current resources and technology. The PPF shows the limit of what is currently feasible in terms of production. Attempting to produce at a point above the PPF would require resources that the society does not possess or technology that has not yet been developed. Therefore, it is impossible for a society to choose a production point above its PPF.

A society should not make a choice below its PPF because it indicates an inefficient allocation of resources. When a society is producing below its PPF, it is underutilizing its available resources, which means it could produce more of both goods without needing to sacrifice the production of one good for another. Producing below the PPF represents a waste of potential output, and the society could do better by reallocating its resources to operate on the frontier. Thus, a society should not make a choice below its PPF since it would mean missing out on possible gains in production. In conclusion, societies cannot make choices above their Production Possibilities Frontier due to the limitations set by available resources and technology. On the other hand, they should not make choices below the PPF, as it would imply inefficient use of resources and unattained potential for growth. Instead, societies should strive to allocate their resources efficiently, so they produce on the PPF.