Final answer:
In monopolistic competition, prices set above the marginal cost represent a cost due to allocative inefficiency. Increased variety, along with competition based on quality and location, are benefits that provide consumers with choices and unique shopping experiences.
Step-by-step explanation:
When sorting the outcomes of product differentiation in monopolistic competition between costs or benefits, one must consider the specific effects they have on the market:
- A) Prices set above the marginal costs of production - This is typically seen as a cost to society since it indicates allocative inefficiency. Society loses the net benefit of potential additional units that are not produced because the price exceeds the marginal cost.
- B) Increased variety - This is a benefit of monopolistic competition, as consumers enjoy a wider range of options that cater to diverse preferences.
- C) Long-run production at a point tangent to the average total cost (ATC) curve - This signifies that firms are only able to break even in the long run, which can be considered a cost as firms are not achieving productive efficiency.
- D) Competition based on quality and E) Competition based on location - Both are benefits that arise from firms striving to differentiate themselves to attract customers beyond just competing on price.