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PPC: The abbreviation for production possibilities curve, which is a curve that illustrates the production possibilities for the economy. A production possibilities curve 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.

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INVESTMENT LINE

A graphical depiction of the relation between investment expenditures by the business sector and the economy's aggregate level of income or production. This relation plays a key role in the study of Keynesian economics. A investment line is characterized by vertical intercept, which indicates autonomous investment, and slope, which is the marginal propensity to invest and indicates induced investment. The aggregate expenditures line used in Keynesian economics is derived by adding or stacking the investment line onto the consumption line, then adding government purchases and net exports to this stack.

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Today, you are likely to spend a great deal of time lost in your local discount super center hoping to buy either several magazines on computer software or a T-shirt commemorating the second moon landing. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The first U.S. fire insurance company was established by Benjamin Franklin in 1752 in Philadelphia.
"It is very rare that you meet with obstacles in this world (that) the humblest man has not the faculties to surmount. "

-- Henry David Thoreau, philosopher

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