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A college student is thinking about running an ice-cream truck over the summer.Which of the following would likely be included in the total cost of the business?


A) The cost of ice cream cones
B) The cost of the truck
C) The opportunity cost of the student's time
D) All of these would be included in total cost.

E) None of the above
F) B) and C)

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Suppose Larry's Lariats produces lassos,and uses nine feet of rope to make each lasso.The rope is put into a machine that automatically cuts it to the right length,then seals the ends to prevent fraying.The rope is then hand tied,dipped,and wound before being placed in a packaging machine to prepare it for retail sale.The total costs for this company would include:


A) the cost of rope.
B) employee's wages.
C) the rope-cutting machine.
D) All of these expenses would be included in total cost.

E) B) and C)
F) None of the above

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Implicit costs are costs that:


A) require a firm to spend money.
B) represent forgone opportunities.
C) do not depend on the quantity of output produced.
D) depend on the quantity of output produced.

E) None of the above
F) A) and B)

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Suppose Larry's Lariats produces lassos in a factory,and uses nine feet of rope to make each lasso.The rope is put into a machine that automatically cuts it to the right length,then seals the ends to prevent fraying.The rope is then hand tied,dipped,and wound before being placed in a packaging machine to prepare it for retail sale.Which of the following would be considered a variable cost for this company?


A) The cost of the factory
B) Employee wages
C) The rope-cutting machine
D) All of these expenses would be included in variable costs.

E) A) and B)
F) A) and C)

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Constant returns to scale refers to when:


A) an increase in the quantity of output decreases average total cost in the long run.
B) an increase in the quantity of output increases average total cost in the long run.
C) average total cost does not depend on the quantity of output in the long run.
D) None of these is true.

E) A) and B)
F) A) and C)

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A college student is thinking about running an ice-cream truck over the summer.What would economists say is the student's main objective?


A) To spend as little on inputs as possible
B) To maximize hourly earnings
C) To sell as many ice cream cones as possible
D) To maximize his profit

E) All of the above
F) C) and D)

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Suppose Winston's annual salary as an accountant is $60,000,and his financial assets generate $4,000 per year in interest.One day,after deciding to be his own boss,he quits his job and uses his financial assets to establish a consulting business,which he runs out of his home.To run the business,he outlays $8,000 in cash to cover all the costs involved with running the business,and earns revenues of $150,000.What are Winston's explicit costs?


A) $64,000
B) $72,000
C) $8,000
D) $12,000

E) B) and C)
F) A) and B)

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An example of an ongoing expense for a toy company would be buying:


A) a delivery truck, and would be included in total cost.
B) a new factory, and would be excluded from total cost.
C) advertising for their products, and would be included in total cost.
D) None of these is true.

E) All of the above
F) A) and B)

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Suppose Bev's Bags makes two kinds of handbags-large and small.Bev rents an industrial space where she keeps the fabric,the industrial sewing machine,her measuring board and cutting shears,extra needles,thread and buttons,and labels.Which of the following would be considered a variable cost of this company?


A) The rent
B) The fabric
C) The cutting shears
D) None of these would be considered a variable cost.

E) A) and B)
F) All of the above

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Suppose Winston's annual salary as an accountant is $60,000,and his financial assets generate $4,000 per year in interest.One day,after deciding to be his own boss,he quits his job and uses his financial assets to establish a consulting business,which he runs out of his home.To run the business,he outlays $8,000 in cash to cover all the costs involved with running the business,and earns revenues of $150,000.What costs would be considered when calculating accounting profit?


A) The opportunity cost of his job and interest forgone of $64,000, and the explicit cost of $8,000
B) The implicit cost of the interest forgone of $4,000 and the explicit cost of $8,000
C) The explicit cost of $8,000
D) The implicit cost of his job of $60,000 and the opportunity cost of forgone interest of $4,000

E) All of the above
F) A) and B)

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Total revenue can be defined as:


A) the amount that a firm receives from the sale of goods and services.
B) the amount that a firm spends on all inputs that go into making a good or service.
C) the total amount a firm spends on all inputs used in production.
D) the total number of sales of a good or service by a firm.

E) C) and D)
F) A) and C)

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In the long run when an increase in the quantity of output increases average total cost,this is called:


A) economies of scale.
B) diseconomies of scale.
C) constant economies to scale.
D) minimum average total cost.

E) A) and C)
F) B) and C)

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The principle of diminishing marginal product states:


A) the total output produced increases as the quantity of the input increases.
B) the marginal product of an input decreases as the quantity of the input increases.
C) the marginal product of an input eventually will be negative.
D) the total output produced decreases as the quantity of the input increases.

E) None of the above
F) All of the above

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Suppose Sam's Shoe Co.makes one kind of shoe.An example of a fixed cost for this company would be:


A) the lease for the factory building.
B) the leather needed to make the shoes.
C) the needles for the sewing machines that need to be replaced after sewing every 1,000 pairs.
D) All of these are examples of fixed costs.

E) C) and D)
F) A) and D)

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A cigar factory employs 20 workers and produces 1,000 cigars a day.The company reduces the workforce to 19 workers and produces 912 cigars a day.The 20th worker:


A) had a marginal product of 88 cigars.
B) caused average product to fall.
C) must have had a lower marginal product than the 19th worker.
D) All of these are true.

E) C) and D)
F) B) and C)

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The relationship between the quantity of inputs and the quantity of outputs is called:


A) an input-output function.
B) a production function.
C) a cost function.
D) a resource function.

E) B) and C)
F) None of the above

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Diminishing marginal product:


A) causes the variable cost curve to become flatter.
B) causes the variable cost curve to become steeper.
C) has no relation to the variable cost curve.
D) causes the fixed cost curve to become flatter.

E) A) and B)
F) B) and D)

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When economic profits are zero,accounting profits are most likely:


A) positive.
B) negative.
C) zero.
D) All of these are likely.

E) B) and C)
F) None of the above

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Accounting profits are calculated as:


A) total revenue minus explicit costs.
B) total revenue minus all opportunity costs, explicit and implicit.
C) total revenue minus implicit costs.
D) None of these is true.

E) A) and B)
F) None of the above

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Accounting profits can tell a business _______________________,and economic profits can tell a business ______________________.


A) if it is making money with this venture; if it can make more money with a different venture
B) if it can make more money with a different venture; if it is making money with this venture
C) if it is a profitable business; if it can be any more profitable
D) if it can be any more profitable; if it is profitable

E) None of the above
F) A) and B)

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