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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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PRINCIPAL-AGENT PROBLEM

A disconnection or conflict between the objectives and goals of the principal and those of the agent authorized to represent the principal. The principal-agent problem arises because an agent is given the responsibility and authority to take actions that affect both the principal, but can also affect the agent. This problem is common in corporate management, where the principal is shareholders and the agent is managers. It is also common in government, where the principal is the public and the agent is elected leaders.

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BROWN PRAGMATOX
[What's This?]

Today, you are likely to spend a great deal of time wandering around the shopping mall seeking to buy either a coffee cup commemorating the 1960 Presidential election or a how-to book on fixing your computer, with illustrations. Be on the lookout for jovial bank tellers.
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In his older years, Andrew Carnegie seldom carried money because he was offended by its sight and touch.
"I believe that every right implies a responsibility, every opportunity, an obligation, every possession, a duty. "

-- John D. Rockefeller, industrialist

AER
American Economic Review
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