AmosWEB is Economics: GLOSS*arama

Saturday
April 11, 2026

AmosWEB means Economics with a Touch of Whimsy!

SHORT-RUN SUPPLY CURVE: For a perfectly competitive firm, the marginal cost curve that lies above the average variable cost curve. This segment of the marginal cost guides a perfectly competitive firm's profit maximizing production as it equates price to marginal cost. Because the marginal cost curve is positively sloped (due to the law of diminishing marginal returns), each firm's supply curve and the market supply curve are also positively sloped. The law of diminishing marginal returns thus provides an explanation for the law of supply. However, this only works for firms with NO market control. Monopoly, monopolistic competition, and oligopoly, with market control, do not achieve the same result.

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production stages (497)
marginal revenue, perfect competition (385)
perfectly elastic (380)
marginal physical product (322)
money functions (302)

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UNFAVORABLE BALANCE OF PAYMENTS: An imbalance in a nation's balance of payments in which payments made by the country exceed payments received by the country. This is also termed a balance of payments deficit. It's considered unfavorable because more currency is flowing out of the country than is flowing in. Such an unequal flow of currency will reduce the supply of money in the nation and subsequently cause an increase in the exchange rate relative to the currencies of other nations. This then has implications for inflation, unemployment, production, and other facets of the domestic economy. A balance of trade deficit is often the source of a balance of payments deficit, but other payments can turn a balance of trade deficit into a balance of payments surplus.

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UNFAVORABLE BALANCE OF PAYMENTS, AmosWEB GLOSS*arama, http://www.AmosWEB.com, AmosWEB LLC, 2000-2026. [Accessed: April 11, 2026].

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BARRIERS TO ENTRY

Institutional, government, technological, or economic restrictions on the entry of participants into a market or industry. The four primary barriers to entry are: (1) resource ownership, (2) patents and copyrights, (3) government restrictions, and (2) start-up cost. Barriers to entry are a key reason for market control and the inefficiency that results. In particular, monopoly, oligopoly, monopsony, and oligopsony often owe their market control to assorted barriers to entry. By way of contrast, perfect competition, monopolistic competition, and monopsonistic competition have few if any barriers to entry and thus little or no market control.

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Today, you are likely to spend a great deal of time browsing about a thrift store trying to buy either several orange mixing bowls or clothing for your pet dog. Be on the lookout for celebrities who speak directly to you through your television.
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