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POLLUTION: Any waste that imposes an opportunity cost when it's returned to the natural environment. Pollution is one of the more prevalent examples of an externality cost and market failure. Examples include, but by no means are limited to, car exhaust, municipal sewage, industrial waste, and agricultural chemical runoff from farms. Pollution waste can be classified as degradable, persistent, or nondegradable, depending on how easily it can be broken down into nonharmful form by the natural environment. Pollution problems can never be eliminated, but they can be handled with efficiency if the amount of pollution is such that the cost of damages is the same as the cost of cleanup.

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FACTOR MARKET, EFFICIENCY

A factor market achieves efficiency in the allocation of resources by equating marginal revenue product to factor price. Perfect competition, as the efficiency benchmark, is the only market structure to satisfy this criterion and achieve factor market efficiency. Monopsony, oligopsony, and monopsonistic competition are inefficient because they equate marginal revenue product to marginal factor cost, both of which are greater than factor price.

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Today, you are likely to spend a great deal of time at a going out of business sale trying to buy either a brown leather attache case or car battery jumper cables. Be on the lookout for poorly written technical manuals.
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This isn't me! What am I?

The standard "debt" notation I.O.U. does not mean "I owe you," but actually stands for "I owe unto..."
"In a time of drastic change, it is the learners who inherit the future. "

-- Eric Hoffer, philosopher

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