Macroeconomic forces are a powerful explanation for changes in the size of the poverty population

"When electric utilities are regulated using an average cost pricing rule, they will earn zero economic profit." Is the previous statement correct or incorrect? Why?

What will be an ideal response?

When Keisha receives a flu vaccination, the additional benefit enjoyed by Keisha's friends is the

A) marginal private benefit. B) marginal external benefit. C) marginal social benefit. D) private benefit. E) marginal private cost.