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average variable costs
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cost that go up the more you produce. variable cost/quantity
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average marginal costs
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es el costo de producir una unidad mas de tu producto. change of total cost/change in output
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average fixed costs
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son costos que se mantienen constantes fixed cost/quantity. they decrease as more units are produced
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average total cost
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fixed costs plus variable cost total cost/quantity
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explicit costs
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out of pocket costslike worker wages .
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implicit costs
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Indirect, non-purchased, or opportunity costs of resources provided by the entrepreneur
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diminishing marginal returns
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the more you produce the less return you get.
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competitive market
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There are many buyers and many sellers in the market.
The goods offered by the various sellers are largely the same.
firms here are price takers
The goods offered by the various sellers are largely the same.
firms here are price takers
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in a perfetly competitive market, what can you do to maximize profits
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produce where price is equal to or above marginal cost
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what is the diference between average revenue and marginal revenue
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average revenue es lo que ganas a cada venta y el marginal revenue es lo que le ganas a cada producto adicional que vendes.
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A farmer sells wheat in a perfectly competitive market. Which action should the farmer take to maximize profits?
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Produce the quantity where the price equals the farmer's marginal cost
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when should a company shut down in terms of its marginal revenue an costs
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shut down when your variable costs are more than your price
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a monopoly
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the single entity owns a key resource
curve slopes downward
curve slopes downward
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what is the ideal quantity that a monopoly should sell?
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where marginal revenue equals marginal cost. charge more and people wont buy
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price discrimination
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monopolies may sell their product at diferent prices to tell people's willingness to buy at that price.
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The profit-maximization problem for a monopolist differs from that of a competitive firm how?
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A competitive firm maximizes profit at the point where average revenue equals marginal cost; a monopolist maximizes profit at the point where average revenue exceeds marginal cost.
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A monopoly can earn positive profits because it
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can maintain a price such that total revenues will exceed total costs.
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Monopolistic Competition Characteristics
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many sellers, products that are diferent enough that there are no close substitute.
firms have some control over price
firms have some control over price
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how is the demand curve for a monopolistic competitive firm ?
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it slopes downward like in a monopoly but has far more elasticity
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what is the best output for a monopolistically competitive firm in the short run
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price greater than total cost
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best output for a monopolistically competitive firm in the long run and why
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price equals average total cost. because it becomes perfect competition
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Oligopoly Characteristics
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few sellers with identical or differentiated products. firms can charge whatever they want if they form a cartel
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how is monopolistic competition similar to monopoly
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Monopolistic competition is similar to monopoly because both market structures are characterized by firms being price makers rather than price taker
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Suppose a market is initially perfectly competitive with many firms selling an identical product. Over time, however, suppose the merging of firms results in the market being served by only three or four firms selling this same product. As a result, we would expect
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a decrease in market output and an increase in the price of the product.
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In the prisoners' dilemma game, self-interest leads
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each prisoner to confess.
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if oligopolists collude what would be the result for 2 firms colluding
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If duopolists successfully collude, then their combined output will be equal to the output that would be observed if the market were a monopoly.
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If a certain market were a monopoly, then the monopolist would maximize its profit by producing 4,000 units of output. If, instead, that market were a duopoly, then which of the following outcomes would be most likely if the duopolists successfully collude?
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One duopolist produces 2,400 units of output and the other produces 1,600 units of output.
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A consumer's budget constraint shows
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the possible combinations of different goods she can buy given her income and the prices of the goods.
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An indifference curve shows
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the various bundles of goods that make the consumer equally happy.
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what is income effect and substitution effect
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The income effect is the change in consumption that arises because a lower price makes the consumer better off. The substitution effect is the change in consumption that arises because a price change encourages greater consumption of the good that has become relatively cheaper.
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On a graph we draw a consumer's budget constraint, measuring the number of pineapples on the horizontal axis and the number of pencils on the vertical axis. If the slope of the budget constraint is -6, then
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a. a pineapple costs six times as much as a pencil.
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do indiference curves bow outward?
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no, they always bow inward
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A good is an inferior good if the consumer buys less of it when
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b. his income rises.
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When the price of a normal good increases,
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both the income and substitution effects encourage the consumer to purchase less of the good.