Traffic lights would be considered:

A firm's primary interest when it hires an additional worker is

A) whether or not the new worker gets along with the firm's existing workers. B) the cost of hiring the additional worker. C) how the average output of the firm will be affected by this new worker. D) the extra revenue the firm realizes from hiring that worker.

The theory that private negotiations have the potential to make some people better off without making anyone worse off when negative externalities are present is known as: a. the Negative Externality Theorem. b. the Sexton Theorem

c. the Coase Theorem. d. the Abatement Theorem.