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Questions tagged [cost]

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Can implicit costs be negative?

I think that conventionally implicit costs are positive but if for example we consider a negative interest rate as an implicit cost, the implicit cost would be negative. Is this true? Can implicit ...
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What is the difference between the discrete choice method and the generalised cost method in transport planning?

I have been using the generalised cost method in an agent based model. The generalised cost method enables each individual agent to make a decision on what mode of transport it will take given a range ...
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Vertical Marginal Cost curves

When would a marginal cost curve be vertical? I understand this happens when the marginal cost jumps, from say 0 to 100, but in such a case, I think there should be a discontinuity rather than a ...
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Excessive entry without fixed costs

Mankiw & Whinston (1986) show that the market may contain too many firms. The intuition is that if a firm charges a suboptimal high price, a rival has a demand curve that is "too high" and can ...
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0answers
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Question on an argument in “The Myth of Absolute Advantage”

Brandis (1967) argues that "absolute advantage does not exist" and "that it is a logical impossibility". (See also comment, comment, reply.) My question here is very narrow and specific. I do not ...
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0answers
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Where to start, to know the cost, in hours of work, necessary to produce one more car (or any other good)?

Let's say I want to buy a car. It costs that, so I can know that, for example, I have to work 3 months to pay for it. But does the car really needs three months of human work to be build? What is the ...
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0answers
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Find change in gross profit after price change

How do you solve this question? A company has 3 products. They contribute to 30%, 30% and 40% of sales respectively. They have profit margins of 15%, 30%, and 50% respectively. If the ...
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0answers
446 views

Short Run vs Long Run Cost Functions

Let $z_a$ and $z_b$ are two vectors of inputs. $z_a$ is variable in both long run and short run however $z_b$ is only variable in long run. Now let's suppose that the price of one of the inputs in ...
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Curvature of Cost and Production Function

I have been trying to understand the duality theory between cost and production function. Please let me know if my following statement is correct; If the cost function $C(w,q)$ is convex in $q$, the ...
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Calculating the weighted average cost of capital

Question : Provided that interest on debt is 12%, dividend to share holders are 15%. Calculate the weighted average cost of capital if debt is 70% and equity is 30%. Given, tax rate is 20%. I know, ...