Econ Chapter 8 Test Questions – Flashcards
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in the short run
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all firms have costs that they must bear regardless of their output
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which statement is TRUE? Fixed costs
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do NOT exist in the long run
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which statement is NOT true? variable costs
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remain constant as output goes up
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economists usually assume that ____ is a fixed input in the _____ run
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capital, short
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economists usually assume that labor is _____ input in the _____ run
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a variable, short
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the formula for total fixed costs is
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TFC=TC-TVC
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total cost is calculated as
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the sum of total fixed cost and total variable cost
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the lawn ranger, a landscaping company, has total costs of $4000 and total variable costs of $1000. the lawn rangers oral fixed costs are
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$3000
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the law ranger, a landscaping company, has total costs of $5000 and total fixed costs of $3000. the law ranger's total variable costs are
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$2000
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the farley farm, a dairy company, has total costs of $15,000 and total variable costs of $2000. the farley farm's total fixed costs are
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$13,000
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wilburs widgets, a widget company, produced 100 widgets. its average fixed cost is $5 and its total variable cost is $300. what is the total cost of producing 100 widgets
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$8--
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amy spends $5000 on remodeling a storefront that she then opens as a take out deli. the business has not been very successful, and she needs an additional $1000 to keep the deli open. which of the following is true
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the $5000 amy spend is a fixed cost of her business
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dana spends $10,000 on remodeling a storefront that she then opens as a shoe store. the business has not been very successful, and she needs an additional $3000 to keep the shoe store open. which of the following is true
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the $10,000 dana spent on remodeling is a fixed cost of her business
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firms have ___ over their ____ costs in the short run
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not control, fixed
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the formula for average fixed costs is
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TFC/q
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average fixed costs associated with producing an additional unit of output
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fall as output rises
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as output increases, average fixed costs
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decrease
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both kate and john own saltwater taffy factories. kate's factory has low fixed costs and high variable costs. john's factory has high fixed costs and low variable costs. currently, each factory is producing 1000 boxes of taffy at the same total cost. complete the following statement with the correct answer. if each produces
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more, the costs of Kate's factory will exceed those of john's factory
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short run costs that depend on the level of output are
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both variable costs and total costs
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which statement is NOT true regarding the total variable cost curve
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it is a horizontal line
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a point on a total variable cost curve shows the ____ variable cost a firm will bear to product a certain output
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lowest
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which of the following is most likely to be a variable cost for a firm
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the payroll taxes that are paid on employee wages
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______ are likely a fixed cost of a firm
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lease payments for supplies
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marginal cost
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is the increase in total cost resulting from producing one more unit
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a firm will begin to experience demising return at the point where
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marginal cost increases
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diminishing marginal returns implies
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increasing marginal costs
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marginal cost is _____ average variable cost when _____
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equal to; average variable cost is maximized
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the explanation for why marginal cost is positive and rising in the short run is ______ marginal product of labor in the pro ducting process
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a diminishing
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in the short run when the marginal product of labor ____ the marginal cost of an additional unit of output _____
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rides, falls
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total variable costs
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always increase with output
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the formula for MC is
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deltaTVC/deltaq
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in the short run, as output increases
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the difference between average total cost and average variable cost decreases
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because marginal cost is always ____ in the short run, total variable cost always _____
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positive, increases
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in the short run where total variable cost is _____ at a(n) _____ rate, marginal cost is positive and decreasing
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increasing, decreasing
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in the short run where total variable cost is _____ at a(n) _____ rate, marginal cost is positive and increasing
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increasing, increasing
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for elliots fog walking service, the only variable input is labor. elliot's labor costs are $300 a day and his service walks 30 dogs per day. to walk 31 dogs per day, his labor costs increase to $305 a day. the marginal cost of walking that 31st dog is
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$5
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if we know average total cost and the amount of output, thence can always calculate total cost by
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multiplying average total cost by the amount of output
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if margin cost is above average variable cost, then
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average variable cost is increasing
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the marginal cost curve intersects the _____ at its minimum
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average variable cost curve average total cost curve A and B
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if the marginal cost curve is below the average variable cost curve, then
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average variable costs are decreasing
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if the average variable cost curve is above the marginal cost curve, then
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marginal costs can be either increasing or decreasing
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if marginal cost is between average variable cost and average total cost, then
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average variable cost is increasing and average total cost is decreasing
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the marginal cost curve intersects the average variable cost curve at the ____ value of the average variable cost curve
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minimum
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twenty five students in a class take a test for which the average grade is 75. then a twenty sixth student enters the class, takes the test, and scores an 80. the test average calculated with 26 students will______
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rise above 75
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if a firm's total costs are $80 when 10 units of output are produces and $90 when 11 units of output are produced, the marginal cost of the 11th unit is
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$10
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if a firm's total costs are $100 when 10 units of output are produces and $103 when 11 units of output are produced, the marginal cost of the 11th unit is
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$3
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if the average variable cost of the fifth hat is $30, then the total variable cost of five hats is
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$150
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a short run total cost schedule is a _____ cost schedule shifted upward by the amount of ____ cost
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total variable, total fixed
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in the short run, ____ costs exceed ____ costs
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average total, average variable
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total cost refers to
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the full economic costs of production
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average total cost
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is the average cost of producing each unit of output
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the framing gallery frames posters. the framing gallery has total fixed costs of $500. the framing gallery's average variable cost is $20 and its average total cost is $25. the framing gallery is currently framing
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100 posters
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the average variable cost of producing ice cream sundaes are minimized when 100 sundaes are produces. the total cost of producing 100 sundaes is $500. if fixed cost of pro ducting is $200, what is the marginal cost of producing the 100th sundae
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$3
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average variable cost and average total costs get closer together as output increases because
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average fixed costs decrease as output increases
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if marginal cost is below average total cost, average total cost will
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be decreasing
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if marginal cost equals average total cost, average total cost will
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be minimized
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the short run average total cost curve eventually begins to increase at an increasing rate because of
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diminishing returns
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the law of diminishing marginal returns
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results in average variable cost (AVC) average total cost (ATC) and marginal cost (MC) curves eventually increasing at and increasing rate
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in the short run a dorm's lowest cost level of ouput is the minimum point on it _____ cost curve
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average total
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a firm is producing output less than the output associated with the minimum point on the firm's short run average variable cost curve. at this level of output the firm uses its fixed capital input ____ and its variable labor input _______
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at a level higher than the lowest average cost, at a lever higher than the lowest average cost
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consider an output beyond the minimum point of a firm's short run average total cost curve. at this level of output the firm can use its _____ input at a lower average cost but only by using its ______ input at a higher average cost
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fixed capital, variable labor
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when considering expanding its student body a college should
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compare the marginal cost of education an additional student to the tuition that student pays
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the main decision for a profit maximizing perfectly competitive firm is not what _____ but what _____
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price to charge, level of output to produce
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if an individual perfectly competitive firm charges a price above the industry equilibrium price, it will
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not sell any of what is produces
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if an individual perfectly competitive firm charges a price below the industry equilibrium price, it will
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sell all that is produces but gain less revenue than competing firms will
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the added revenue that a firm takes in when it increases output by one additional unit is _____ revenue
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marginal
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marginal revenue for a perfectly competitive firm is
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horizontal
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in a perfect competition, the marginal revenue curve
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and the demand curve facing the firm are identical
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the relationship between the price that a perfectly competitive firm can charge buyers and the firm's marginal revenue is that the price is _____ marginal revenue over all output
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equal to
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profit maximizing firms want to maximize the difference between
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total revenue and total cost
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assume dell computer company operates in a perfectly competitive marker producing 5000 computers per day. at this output level, price exceeds this firm's marginal cost. to maximize profits, dell should
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profits to increase
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assume dell computer company operates in a perfectly competitive marker producing 5000 computers per day. at this output level, marginal cost exceeds this firm's price.to maximize profits dell should
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decrease their output
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assume dell computer company operates in a perfectly competitive market producing 5000 computers per day. at this output level, price equals this firms marginal cost. to maximize profits dell should
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make no adjustments as they are already maximizing their profits
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if a firm's demand curve is perfectly elastic, then at the profit maximizing level of output
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P=MR=MC
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if a profit maximizing firm is currently producing MR=MC, it should
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not change because it is already max profit
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if a firm is producing where MR>MC
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the revenue gained by producing one more unit of output exceeds the cost incurred by doing so
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joe's butcher shop is producing where MR=MC, joes butcher shop must be
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maximizing profits
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a firm in a perfectly competitive industry is producing 50 units, its profit maximizing quantity. industry price is $2, total fixed costs are $25, and total variable costs are $40. the firms economic profit is
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$35 (50 x 2=100) (100-40-25=$35)
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wheat is produced in a perfectly competitive market. market demand for wheat increases. this will cause the individual wheat farmers marginal revenue to _____ their profit maximizing level of output to ____
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increase, increase
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corn is produced in a perfectly competitive market. the demand for ethanol increase. this will cause the individual corn farmer's marginal revenue to ____ and their profit maximizing level of output to _____
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increase, increase
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strawberries are produced in a perfectly competitive market. average consumer incomes decrease. this will cause the individual strawberry farmer's marginal revenue to _____ and their profit maximizing level of output to _____
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decrease, decrease
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assume soybeans are produced in a perfectly competitive market. a soybean farmer is currently maximizing his profits. if the market price of soybeans falls, after the farmer adjusts to the new price, he will be producing _____ bushels of soybeans and his profit will be _____
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fewer, lower
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a perfectly competitive firm will earn positive economic profits in the range of output for which the firm's price is ____ its minimum average total cost
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above
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if a perfectly competitive firm's average total cost curve is above its demand schedule at every level of output, then the firm will earn ____ profits
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negative
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if P=MC and MC>ATC, then a perfectly competitive firm will earn ____ profits
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positive
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if a perfectly competitive firm is currently producing where P=MC and Mc=ATC, the the firm will earn _____ profits
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zero
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if an industry supply curve increases while the industry demand curve remains the same, then an individual firm in a perfectly competitive industry currently earning positive profits will see its profits
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decrease
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if an industry supply curve decreases while the industry demand curve remains the same, then an individual firm in a perfectly competitive industry currently earning losses will see its losses ____
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decrease
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perfectly competitive firms
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sell homogenous product are price takers are small relative to the size of the market all of the above
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the rising part of a perfectly competitive firm's _____ cost curve is the firm's short run ____ curve
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marginal, supply
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the law of supply hold for perfectly competitive firms assuming that each firm tries to
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maximize profits
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jerry sells cherry snocones along the boardwalk in NJ. during the summer this is a perfectly competitive business, and jerry faces a perfectly elastic demand curve. if he wants to try to increase revenues he should
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keep the price the same but produce more to increase sales
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a firm in a perfectly competitive market has no control over price because
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every firm's product is a perfect substitute for every other firm's product
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the closest example of a perfectly competitive market is
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soybeans
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a market demand curve is
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downward sloping
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if a firm in a perfectly competitive industry raises price above market price
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sales will drop to zero
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a perfectly elastic demand curve implies that, ceteris paribus
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a firm raises its price above the market price, quantity demanded will equal zero
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assume the wool industry is perfectly competitive. whys is it difficult for a wool producer to make excess profits in the long run
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there is free entry into the wool industry
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assume the wool industry is perfectly competitive. the market demand curve for wool is _____ and each individual wool produce's demand curve is _____
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downward sloping, horizontal
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free entry implies that
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if firms in an industry are making excessively high profits, new firms are likely to enter the industry
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the fat food industry is not considered perfectly competitive because
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the firm's products are not homogenous
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you are the owner of an ice cram shop. you normally close at 8:00 pm, but are considering staying open an additional hour. you
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should only stay open if the additional revenue you generate exceed the marginal cost of operating an additional hour