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July 8, 2025 

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REALISM OF MONOPOLY: If taken to the extreme, monopoly, like perfect competition is an ideal market structure that does not actually exist in the real world. In the extreme, a "pure" monopoly is a market containing one and only ONE seller of good, a good with absolutely, positively no substitutes. The product is absolutely, certifiably unique. It's not just that it has no CLOSE substitutes, it has NO substitutes. Period. End of story. In the real world, however, every product, no matter how seemingly unique it might appear, has substitutes. The substitutes might not be very close. They might be really, really bad substitutes. But they are substitutes. As such, there are no pure monopolies in the real world.

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MARGINAL COST AND DIMINISHING MARGINAL RETURNS: Decreasing then increasing marginal cost that gives rise to a U-shaped marginal cost curve reflects increasing then decreasing marginal returns. In particular the decreasing marginal returns is caused by the law of diminishing marginal returns. As such, the law of diminishing marginal returns affects not only the short-run production of a firm but also the cost of production in the short run.

     See also | marginal cost | law of diminishing marginal returns | variable input | variable cost | fixed input | fixed cost | marginal cost curve | increasing marginal returns | decreasing marginal returns |


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MARGINAL COST AND DIMINISHING MARGINAL RETURNS, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2025. [Accessed: July 8, 2025].


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TOTAL PRODUCT

The total quantity of output produced by a firm for a given quantity of inputs. Total product is the foundation upon which the analysis of short-run production for a firm is based. The usual framework is to analyze total product when a variable input (labor) changes, while a fixed input (capital) does not change. Two related concepts derived from total product are average product and marginal product.

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Today, you are likely to spend a great deal of time lost in your local discount super center wanting to buy either a weathervane with a chicken on top or a flower arrangement with daisies and carnations for your uncle. Be on the lookout for telephone calls from former employers.
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The portion of aggregate output U.S. citizens pay in taxes (30%) is less than the other six leading industrialized nations -- Britain, Canada, France, Germany, Italy, or Japan.
"Progress always involves risk. You can't steal second base and keep your foot on first. "

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