A. versatility and flexibility. B. rationality. C. pleasure or satisfaction. D. purposefulness

If 10 firms share the sales of the market equally, the four-firm concentration ratio is ________ percent

A) 100 B) 40 C) 10 D) 5

The purchase of a new house is included in

A) government purchases. B) investment expenditures. C) net exports. D) consumption expenditures.