Answer:
So, from a short-run perspective, so long as the sale does not affect other output prices or normal sales volume, a "below cost" sale may result in a net increase in income so long as the revenues cover the differential costs.
However, in the long run all costs must be covered or management would not reinvest in the same type of assets.
If the company must continually sell below the full cost of production then it will most likely get out of that particular business when it comes time to replace those facilities.
