Cost Analysis and Minimization

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Questions and Answers

Which of the following is the BEST example of an explicit cost?

  • The salary a business owner could be earning in another job.
  • The depreciation of equipment.
  • The forgone rent from using owned property for business operations.
  • The cost of raw materials used in production. (correct)

What primarily distinguishes a sunk cost from a non-sunk cost?

  • Sunk costs cannot be avoided, regardless of the decision made, while non-sunk costs can be avoided if the firm shuts down. (correct)
  • Sunk costs are relevant to making future decisions, while non-sunk costs are not.
  • Sunk costs can be recovered if the firm ceases operations.
  • Non-sunk costs cannot be avoided if a firm shuts down.

In the context of cost minimization, what does the term 'long run' signify?

  • A period sufficiently long that all inputs are variable. (correct)
  • A period less than one calendar year.
  • A period when all inputs are fixed.
  • A period when at least one input is fixed.

What is the primary objective of a cost-minimizing firm?

<p>To minimize the cost of producing a given amount of output. (D)</p>
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If a firm's isocost line shifts due to a change in total cost, what remains unchanged?

<p>All of the above. (D)</p>
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What does the slope of an isocost line represent?

<p>The ratio of input prices. (C)</p>
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At the cost-minimizing input combination, what is true of the relationship between the marginal rate of technical substitution (MRTS) and the input price ratio?

<p>MRTS is equal to the input price ratio. (A)</p>
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What condition defines a 'corner solution' in cost minimization?

<p>The firm uses none of at least one input. (A)</p>
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If the price of labor (w) increases, what is the expected impact on the cost-minimizing quantity of capital, all else being equal?

<p>It will increase. (A)</p>
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What is an 'expansion path'?

<p>The line connecting cost-minimizing input combinations as output changes, holding input prices constant. (B)</p>
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What defines an 'inferior input' in production?

<p>An input whose cost-minimizing quantity decreases as the firm produces more output. (D)</p>
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A firm's production function is given by $Q = 50K^{0.5}L^{0.5}$, where Q is output, K is capital, and L is labor. If the wage rate (w) is $5 and the rental rate of capital (r) is $20, what is the cost-minimizing ratio of capital to labor (K/L)?

<p>0.25 (B)</p>
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What is the key difference between the short-run and long-run labor demand curves?

<p>In the short run, at least one input is fixed, while in the long run, all inputs are variable. (B)</p>
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The production function is $Q=50K^{0.5}L^{0.5}$. If Q=100 and K=1, what is the L?

<p>4 (C)</p>
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A firm's total cost function is $TC = 10 + 2Q$, where Q is the quantity of output. What is the nature of costs in this scenario?

<p>There are both fixed costs of 10 and variable costs of 2Q. (A)</p>
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Flashcards

What are explicit costs?

Costs involving a direct monetary outlay

What are implicit costs?

Costs that do not involve outlays of cash.

What is opportunity cost?

The value of a resource in its best alternative use.

What are economic costs?

The sum of a firm's explicit and implicit costs

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What are accounting costs?

Total of a firm's explicit costs

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What are sunk costs?

Costs that must be incurred no matter the decision

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What are Non-sunk costs?

Costs that must be incurred only if a particular decision is made.

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What is a cost minimization firm?

A firm that seeks to minimize the cost of producing a given amount of output

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What is the long run?

A period when all firm's inputs can vary.

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What is the short run?

A period when at least one input's quantity is fixed

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What is isocost line?

The set of combinations of labor and capital that yield the same total cost for the firm.

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What are normal inputs?

An input whose cost-minimizing quantity increases as the firm produces more output.

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What is capital demand curve?

the cost-minimizing quantity of capital varies with the price of capital

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What are total variable costs?

The sum of total expenditures on variable inputs at the short-run cost-minimizing input combination.

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What are total fixed costs?

The cost of fixed inputs; it does not vary with output.

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