What are the two main sources of tax revenues for state and local governments?

In the long-run, a firm in monopolistic competition produces at an output level where

A) P > ATC and MR = MC. B) P > ATC and MR > MC. C) P = ATC and MR = MC. D) P = ATC and MR > MC. E) P = ATC and MC = ATC.

In most microeconomic models, a decision maker

A) maximizes an objective subject to a constraint. B) faces no constraints. C) has no clearly defined objective. D) B and C