A practice which might force employers to use more labor than they would otherwise is referred to as

The short run in macroeconomics is the period in which

A) prices change significantly. B) the demand curve is vertical. C) no contracts or agreements exist to fix prices. D) demand determines output.

A monopoly can arise when

A) there are diseconomies of scale. B) there are barriers to entry and no close substitutes for the good being produced. C) a firm cannot price discriminate. D) firms engage in rent seeking. E) a firm must set MR equal to MC in order to maximize its profit.