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If a firm increases an input (a factor of production) and thus reaps a 50-unit increase in output, we might call this extra fifty:

Select one:
A. An incremental change
B. None of the answers listed
C. All of the listed answers
D. A macroeconomic impact
E. An example of rational self-interest



Answer :

GinnyAnswer

Final answer:

Firms use the marginal decision rule to optimize spending on factors of production based on marginal benefit and cost.


Explanation:

Marginal benefit is the amount by which an additional unit of an activity increases its total benefit. Economists emphasize evaluating activities at the margin to compare additional benefits and costs. Applying the marginal decision rule, a firm shifts spending among factors of production if the marginal benefit exceeds the marginal cost.


Learn more about Marginal Benefit and Decision Rule here:

https://brainly.com/question/33720865


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