During the height of the pet rock craze in the 1970s, the price elasticity of demand was estimated to be 1.20.Since pet rocks have a marginal cost of zero, a profit-maximizing seller of pet rocks would

A) increase prices.
B) decrease prices.
C) leave prices unchanged.
D) need more-detailed market information before making any pricing changes.
E) diversify into selling Karen Carpenter LPs.

Price Elasticity Of Demand

A measure in economics indicating how the quantity demanded of a good changes in response to a change in its price.

Marginal Cost

The increase in total cost that arises from an increase in the production of one additional unit of a good or service.

Profit-Maximizing Seller

A seller who adjusts prices and production levels to achieve the highest possible profit from their goods or services.