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TACIT COLLUSION: Seemingly independent, but parallel actions among competing firms (mostly oligopolistic firms) in an industry that achieve higher prices and profits, much as if guided by an explicit collusion agreement. Also termed implicit collusion, the distinguishing feature of tacit collusion is the lack of any explicit agreement. They key is that each firm seems to be acting independently, perhaps each responding to the same market conditions, but the end result is the same as an explicit agreement. This should be contrasted with explicit or overt collusion that does involve a formal, explicit agreement.

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INCREASING MARGINAL RETURNS

In the short-run production by a firm, an increase in the variable input results in an increase in the marginal product of the variable input. Increasing marginal returns typically surface when the first few quantities of a variable input are added to a fixed input. This is one of two alternatives for marginal returns. The other is decreasing marginal returns. A related phenomenon for long-run production is increasing returns to scale.

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Today, you are likely to spend a great deal of time strolling around a discount warehouse buying club looking to buy either income tax software or a how-to book on the art of negotiation. Be on the lookout for slow moving vehicles with darkened windows.
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Potato chips were invented in 1853 by a irritated chef repeatedly seeking to appease the hard to please Cornelius Vanderbilt who demanded french fried potatoes that were thinner and crisper than normal.
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