Keynesian economists today favor a model in which the aggregate supply curve is relatively flat at low levels of real GDP and slopes downward as real GDP approaches its potential level

A scatter diagram shows the

A) level of one variable over time. B) change in one variable over time. C) relationship between two variables. D) evolution of a variable.

A monopolistic competitor exits the industry in the long run if ________

A) total revenue exceeds total cost B) total costs exceed total revenue C) marginal revenue exceeds marginal cost D) marginal revenue equals marginal cost