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Fixed costs do not affect short-run marginal cost because they are just that- fixed. They are not dependent on quantity when it changes and does not vary directly with the level of output. Variable costs, however, do affect short-run marginal costs.

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Q: Do fixed and variable costs affect short-run marginal cost?
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Related questions

What is happening to average variable costs when they equal marginal costs?

When average variable costs equal to the average marginal cost, the average variable cost will be at the minimum point. i.e. lowest cost


Marginal versus variable costing?

Variable cost refers to the TOTAL variable cost of all units, whereas marginal cost is the variable cost of the last unit only. Variable cost is the sum of all the individual marginal costs. The derivative of the Variable Cost is the Marginal Cost. The integral of the Marginal cost is the Variable Cost.


What is the connection between marginal returns and variable costs?

they are usually inversly proportional


What is Total variable costs?

Total variable costs are the sum of expenses which change proportionally as the price of services and goods fluctuate. The total marginal costs above produced units is also referred to as total variable costs.


Are marginal costs relevant costs?

If marginal costs are relevant for specific situation or specific decision making scenario then marginal costs are relevant costs otherwise marginal costs can be irrelevant.


If fixed cost do not change then the marginal cost?

Contrast to what we would normally think, changes in fixed costs do not affect marginal cost. For example, if a product costs $10 to produce, and the fixed cost goes up to $25, then marginal cost stays the same.


If average cost increases does marginal cost increase?

It depends if the increase in Average Cost is caused by an increase in Fixed Costs or an increase in Variable Costs. An increase in Fixed Costs will not increase MC, because FCs do not vary with output (by definition) And increase in Variable Costs will increase MC


How does the law of diminishing marginal productivity affect the cost of productions?

When marginal productivity is diminished, the cost of productions can decrease if the marginal costs for making an extra product is larger than the marginal revenue for that 1 extra unit product.


Where could one learn about marginal costs?

One is able to learn about marginal costs at several different places online, such as at the following websites: the Wikipedia Marginal Costs webpage, Marginal Cost, and Margins.


Difference between absorption costing and marginal costing calicut uviversity?

The difference between marginal and absorption costing is that when preparing a statement based on marginal costing, you would subtract all variable costs, production or otherwise, from the sales revenue, to give the contribution, from which you subtract all fixed costs (production and non-production) to give profit made.Using absorption costing however, you subtract production costs (this will include both variable and fixed production costs) only from sales to give you the gross profit, from which you then subtract all non-production costs (fixed or variable) to give net profit.The final profit using both methods is always the same.


What is marginal control costs?

The increase or decrease in the total cost of a production run for making one additional unit of an item. It is computed in situations where the breakeven point has been reached: the fixed costs have already been absorbed by the already produced items and only the direct (variable) costs have to be accounted for. Marginal costs are variable costs consisting of labor and material costs, plus an estimated portion of fixed costs (such as administration overheads and selling expenses). In companies where average costs are fairly constant, marginal cost is usually equal to average cost. However, in industries that require heavy capital investment (automobile plants, airlines, mines) and have high average costs, it is comparatively very low. The concept of marginal cost is critically important in resource allocation because, for optimum results, management must concentrate its resources where the excess of marginal revenue over the marginal cost is maximum. Also called choice cost, differential cost, or incremental cost. Read more: http://www.businessdictionary.com/definition/marginal-cost.html#ixzz2Mdg26AC0


Why is marginal cost unaffected by lump sum tax?

Marginal cost is the cost to the firm of producing one more unit of output - it is affected by the same factors that affect variable costs. A lump sum tax does not affect this relationship whereas a tax on the marginal unit produced will; such as an ad valorem tax. If a lump sum tax is imposed on a producer this will NOT affect his profit maximising decisions as his output decisions are always based on the margin. He will set MC = MR as per normal but will endure lower profits as the AC has increased. It is important to understand the distinction between marginal and average in this case and the consequences that marginal tax has on behaviour of the firm.