A monopolistically competitive firm can convince buyers that its product has value by differentiating its product to suit consumers' preferences

A person has a comparative advantage in producing a particular good if that person

A) has higher productivity in producing it than anyone else has. B) can produce it at lower opportunity cost than anyone else can. C) has less desire to consume that good than anyone else has. D) has more human capital related to that good than anyone else has.

The vertical long-run aggregate supply curve implies that shifts in aggregate demand will, in the long-run,

A. change output and prices B. change interest rates C. change prices only D. change nothing