The term " frontier" (or curve) is a diagram showing the maximum amount of goods and/or services an economy can produce. example: when production falls below this line resources are not being used at full efficiency production !

Answer

Production Possibility Frontier

Explanation

The Production Possibility Frontier (PFF) is a curve depicting all maximum output possibilities for two goods, given a set of inputs consisting of resources and other factors. The PPF assumes that all inputs are used efficiently. The (PFF) represents the point at which a country's economy is most efficiently producing its goods and services and, therefore, allocating its resources in the best way possible.

Production Possibilities

the answer would be a)henry grady because he came up with the term "new south"