Combined micro chapter 8 – Flashcards

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Many firms, with differentiated products, some control over price, relatively easy to enter.
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Monopolistic competition
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Large number of firms, standardized product, no control over price, very easy to enter
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Pure competition
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MR=MC rule is known as what?
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Profit maximizing rule and loss minimizing rule
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Confronted with market price of its product, the competitive producer will ask what three questions?
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Should we produce? In what amount? What's the economic profit?
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How do you find the total revenue for each output level?
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Multiply output (total product) by price.
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What are the methods of ways to determine the level of output at which a competitive firm will realize max profit or mini loss?
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Comparing TR and TC AND comparing MR and MC
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Curve MR is horizontal because:
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the firm is a price taker.
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In a competitive industry, no single firm can influence market price. This means that the firm's demand curve is BLANK BLANK and price equals BLANK BLANK.
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perfectly elastic; marginal revenue
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If price is less than minimum average variable cost, a competitive firm minimizes its loss by BLANK BLANK.
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shutting down
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If price is greater than average total cost, a competitive firm minimizes its loss by producing the BLANK amount of outcome.
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P=MC
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If price also exceeds average total cost, the firm maximizes its economic profit at the BLANK amount of output.
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P=MC
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We can analyze short run profit maximization by a competitive firm by comparing BLANK BLANK and BLANK BLANK or by applying BLANK BLANK.
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total revenue; total cost; marginal analysis
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Provided price exceeds minimum average variable cost, a competitive firm maximizes profit or minimizes loss in the short-run by producing the BLANK at which price or marginal revenue equals marginal cost.
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Output
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Applying the MR(=P)=MC rule at various possible market prices leads to the conclusion that the segment of the firm's short run marginal-cost curve that lies above the firm's average-variable-cost curve is its BLANK BLANK BLANK BLANK.
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Short-run supply curve
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A competitive firm shuts down production at least temporary if price is BLANK than minimum average variable cost.
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less
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A competitive firm shuts down production at least temporary if price is less than BLANK BLANK BLANK BLANK
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minimum average variable cost
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"Involves only a few sellers of a standardized of differentiated product, so each firm is affected by the decisions of its rival"
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Oligopoly
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In pure competition, to calculate economic profit, we first calculate the difference between product BLANK or BLANK (average) revenue and average total cost and then multiply it by output.
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price; marginal
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"One firm selling a single unique product, where entry of additional firms is blocked and product differentiation is not an issue"
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Monopoly
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From an economic standpoint, the break-even point is the level of output at which a firm makes BLANK or a BLANK profit.
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zero; a normal
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A purely competitive firm's average-revenue schedule is also known as its BLANK BLANK.
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Demand Schedule
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In a purely competitive market, price per unit to the purchaser is synonymous with BLANK per unit or BLANK revenue to a seller.
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revenue; average
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This rule is an accurate guide to profit maximization for all firms regardless of their market structure.
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MR=MC rule
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This rule applies only if producing is preferable to shutting down.
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MR=MC rule
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This rule can be re-stated as P=MC when applied to a purely competitive firm because product price and MR are equal.
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MR=MC rule
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We study pure competition because it:
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produces ideal results in terms of low-cost production and allocative efficiency, and can be used as a basis of comparison.
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pure competition
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very large number of firms, no control over price, no nonprice competition
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pure monopoly
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one firm, unique product, much control over price
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monopolistic competition
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differentiated products, many firms, some price control
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oligopoly
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few firms, standardized products, many obstacles to entry, no control over price
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Why do the demand curve and marginal revenue curve have the same shape?
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Demand is perfectly elastic; MR is constant and equal to P.
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Consider the statement: "Even if a firm is losing money, it may be better to stay I business in the short run." This statement is
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true if the loss is less than the variable cost.
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The firm should produce in the short run so long as the price
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is less than the average variable cost.
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Consider a firm that has no fixed costs and which is currently losing money. Are there any situations in which it would want to stay open for business in the short run?
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Yes, the firm will operate if revenue is greater than the variable cost.
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A firm with no fixed cost
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.....
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When an industry is purely competitive, price can be substituted for marginal revenue in the MR = MC rule because
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the demand curve is perfectly elastic and the price is constant regardless of the quantity demanded, so the MR is constant and equal to the price.
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four market models
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pure competition pure monopoly monopolistic competition oligopoly
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pure competition
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very large number of sellers, standardized product, easy entry and exit, price takers (sellers that have no pricing power)
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purely competitive demand
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perfectly elastic demand, the firm has no power to influence price so the firm merely chooses to product a certain level of output at the price that is given
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pure monopoly
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one firm, unique product, much control over the price
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average revenue
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total revenue/quantity
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total revenue
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price x quantity
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marginal revenue
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change in total revenue/change in quantity
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profit maximization
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should the firm produce(in the short run)? if so, in what amount? what economic profit (loss) will be realized?
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loss minimization
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in the short run the firm only have two choices, to produce or shut down
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monopolistic competition
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differentiated products, many firms, some price control
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oligopoly
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few firms, standardized products, many obstacles to entry
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We study pure competition because it
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produces ideal results in terms of low-cost production and allocative efficiency, and can be used as a basis of comparison
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Consider the statement: "Even if a firm is losing money, it may be better to stay in business in the short run." This statement is
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true if the loss is less than the fixed cost
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The firm should produce in the short run so long as the price
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is less than the average variable cost
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Consider a firm that has no fixed costs and which is currently losing money. Are there any situations in which it would want to stay open for business in the short run?
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No, the firm will want to shut down
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A firm with no fixed cost
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is really in the long run
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The equality of marginal revenue and marginal cost is essential for profit maximization in all market structures because when this is true the
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last unit produced adds more to revenue than to costs, and its production must necessarily increase profits or reduce losses
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When an industry is purely competitive, price can be substituted for marginal revenue in the MR = MC rule because
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the demand curve is perfectly elastic and the price is constant regardless of the quantity demanded, so the MR is constant and equal to the price
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If a firm's current revenues are less than its current variable costs, it should shut down
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immediately
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If a firm's current revenues are less than its current variable costs and it decides to shut down, this decision
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may be temporary until the price of the product increases
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Suppose that the paper clip industry is perfectly competitive. Also assume that the market price for paper clips is 2 cents per paper clip. The demand curve faced by each firm in the industry is:
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A horizontal line at 2 cents per paper clip
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A purely competitive firm whose goal is to maximize profit will choose to produce the amount of output at which
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TR exceeds TC by as much as possible. correct
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If it is possible for a perfectly competitive firm to do better financially by producing rather than shutting down, then it should produce the amount of output at which:
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MR = MC
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A perfectly competitive firm that makes car batteries has a fixed cost of $10,000 per month. The market price at which it can sell its output is $100 per battery. The firm's minimum AVC is $105 per battery. The firm is currently producing 500 batteries a month (the output level at which MR = MC). This firm is making a _____________ and should _______________ production.
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loss; shut down
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Consider a profit-maximizing firm in a competitive industry. Under which of the following situations would the firm choose to produce where MR = MC?
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Minimum AVC < P minimum ATC.
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T or F: Marginal revenue is the change in total revenue associated with additional units of output.
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TRUE
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