The Shutdown Decision: When Should a Firm Stop Producing?

A firm losing money may still be better off operating in the short run, as long as its revenue covers its variable costs.

Imagine a business that is losing money every month. The obvious reaction is to close it immediately. Surprisingly, economics often says that would be a mistake - at least for now. The shutdown decision is a firm’s short-run choice about whether to keep producing or to temporarily stop. The key insight is that some costs must be paid whether the firm operates or not, so the right question is not “am I making a profit?” but “am I losing less by staying open than by closing?”

Fixed costs are paid either way

Recall the difference between fixed costs and variable costs. Fixed costs, such as rent on a lease that cannot be broken or a loan repayment on equipment already bought, must be paid in the short run even if the firm produces nothing. Variable costs, such as ingredients, electricity for machines, and hourly wages, rise and fall with output and disappear if production stops.

If a firm shuts down in the short run, its revenue drops to zero, but it still owes its fixed costs. So its loss from shutting down equals its fixed costs. If it stays open, it earns revenue and pays both its variable and fixed costs. Staying open is better whenever revenue is large enough to cover all the variable costs, because then any extra revenue goes toward paying off part of the fixed costs that would be owed anyway.

The shutdown rule

This gives a simple rule. In the short run, a firm should keep operating as long as its total revenue is at least as large as its total variable cost. Put another way, it should continue as long as the price it receives is at least equal to its average variable cost - the variable cost per unit produced. If price falls below average variable cost, every unit produced adds more to costs than to revenue, and the firm loses less by shutting down temporarily.

A struggling café in the off season

A café pays 3,000 dollars a month in rent under a lease it cannot cancel - a fixed cost. During the quiet winter months, it earns 5,000 dollars a month in sales, and its ingredients, staff wages, and electricity cost 4,000 dollars a month - its variable costs. If it stays open, its total costs are 7,000 dollars against 5,000 dollars of revenue, a loss of 2,000 dollars. If it closes, it earns nothing but still pays 3,000 dollars of rent, a loss of 3,000 dollars. Staying open loses 1,000 dollars less, so the café should keep operating. But if winter sales fell to 3,500 dollars - below its 4,000 dollars of variable costs - closing for the season would be the smaller loss.

Shutdown is not the same as exit

Shutting down is temporary. The firm stops producing but keeps its lease, its equipment, and the option to reopen when conditions improve - which is why seasonal businesses like beach kiosks or hill-station hotels close for part of the year. Exit is a long-run decision to leave the industry entirely. In the long run, no costs are fixed: leases end and equipment can be sold. So in the long run, a firm stays in business only if its revenue covers all its costs, fixed and variable. A firm that keeps losing money over the long run will eventually exit.

Letting fixed costs drive the short-run decision

A common mistake is deciding to close simply because total costs exceed revenue. In the short run, fixed costs are like a sunk cost for this decision: they are owed no matter what. Only revenue and variable costs should decide whether to keep operating. Fixed costs matter for the long-run question of whether to stay in the industry at all.

Key takeaways

The shutdown decision is a short-run choice about whether to keep producing.
Fixed costs are paid whether the firm operates or not, so they should not drive this choice.
A firm should keep operating if revenue covers its variable costs, even at a loss.
Equivalently, it should shut down when price falls below average variable cost.
Exit is a separate long-run decision that depends on covering all costs.