PRODUCTION POSSIBILITIES CURVE: A curve that illustrates the production possibilities for the economy. A production possibilities curve (or PPC), like the one presented here, represents the boundary or frontier of the economy's production capabilities. That's why it's also frequently termed a production possibilities frontier (or PPF). As a frontier, it is the maximum production possible given existing (fixed) resources and technology. Producing on the curve means resources are fully employed, while producing inside the curve means resources are unemployed. The law of increasing opportunity cost is what gives the curve its distinctive convex shape.

     See also | production possibilities | production possibilities schedule | resources | technology | full employment | unemployment | opportunity cost | economic growth | law of increasing opportunity cost | scarcity | convex |

PRODUCTION POSSIBILITIES CURVE, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2020. [Accessed: September 27, 2020].

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A key conceptual notion of Keynesian economics stipulating that the aggregate expenditures on real production is based on existing or actual income rather than the income that would be generated with full employment of resources. Effective demand is embodied in the aggregate expenditures line, which has a positive slope, but a slope of less than one. This concept was proposed by Thomas Robert Malthus in the early 1800s as a counter argument to Say's law found in classical economics and then found new life when John Maynard Keynes developed his theory in the 1930s.

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