If a firm takes the wage as given, then the supply curve of labor to that firm is

The above figure shows a perfectly competitive firm. If the market price is $5, the firm

A) is making an economic profit. B) is making zero economic profit. C) will immediately shut down. D) will not shut down. E) might shut down but more information is needed about the AVC.

Protection of rivers in Idaho is a public good. If the marginal social cost of protecting rivers in Idaho exceeds the marginal social benefit of river protection, is there more than, less than,

or the efficient amount of river protection taking place?