If consumption is defined as C = 4,500 + 0.75Y, then the marginal propensity to save is 0.25

As national income rises,

A) water problems are eliminated. B) infant mortality falls. C) emissions from fossil fuels decrease. D) depletion of forest reserves increases at an increasing rate.

The investment when a firm runs part of its operation abroad or invests in another company abroad is called:

A. import investment. B. export investment. C. foreign direct investment. D. portfolio investment.