ECON 101 Lecture Notes - Lecture 40: Market Power, Marginal Revenue, Perfect Competition
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ECON 101 Full Course Notes
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Pro t maximization assumption: we assume that rms attempt to maximize pro ts, pro t= total revenue - total cost. Perfect competition de nitions: price takers- takes market price that is given. Conditions: for an industry to be competitive > must contain many producers, none of whom. 2. have a large market share: market share- fraction of total industry output a rm has. Industry firm graph: supply/demand of industry > price of it > demand curve of individual rms cause there"s nothing they can do about price, demand curve is essentially perfectly elastic because there are an infinite. Amount of substitutes: ex: no one cares what fucking store of frozen yogurt you"re buying > all tastes the same and they"re everywhere. Pro t in perfect competition: pro t = tr tc. 2: tc = fc + vc > pro t = tr (fc + vc) If price is not greater than avc > shutdown.