Which statement correctly describes fixed vs variable costs?

Which statement correctly describes fixed vs variable costs?

• A. Fixed costs are paid monthly regardless of output
• B. Variable costs are paid only when production occurs
• C. Fixed costs increase with production volume
• D. Variable costs are unrelated to output

Answer: (A)

Fixed costs stay the same no matter how much you produce in the short run; they’re incurred on a regular schedule and don’t change with output. That’s why stating that fixed costs are paid monthly regardless of output captures the essential idea. Examples include rent, insurance, and salaries that don’t fluctuate with how many units you make. Variable costs, in contrast, rise with production—more units mean more materials and direct labor tied to those units, and if you produce nothing, variable costs are typically zero in the simple model. The description that variable costs are paid only when production occurs is less precise, since it doesn’t emphasize how the amount depends on how much you produce, and can be misleading in more complex settings. The other statements contradict the basic definitions: fixed costs don’t increase with production, and variable costs are not unrelated to output.

Fixed costs stay the same no matter how much you produce in the short run; they’re incurred on a regular schedule and don’t change with output. That’s why stating that fixed costs are paid monthly regardless of output captures the essential idea. Examples include rent, insurance, and salaries that don’t fluctuate with how many units you make. Variable costs, in contrast, rise with production—more units mean more materials and direct labor tied to those units, and if you produce nothing, variable costs are typically zero in the simple model. The description that variable costs are paid only when production occurs is less precise, since it doesn’t emphasize how the amount depends on how much you produce, and can be misleading in more complex settings. The other statements contradict the basic definitions: fixed costs don’t increase with production, and variable costs are not unrelated to output.