The ________ assumes that people choose efficient means to achieve their ends, but it regards goals as objects of choice that are subject to a similar efficiency requirement.

If there are five goods in a barter economy, one needs to know ten prices in order to exchange one good for another

If, however, there are ten goods in a barter economy, then one needs to know ________ prices in order to exchange one good for another. A) 20 B) 25 C) 30 D) 45

Whenever there is an increase in autonomous consumption spending, there will be

a. an upward shift of the aggregate expenditure line causing equilibrium GDP to rise b. an upward shift of aggregate expenditure line, but no change in equilibrium GDP c. no change in the aggregate expenditure line, but equilibrium GDP will rise d. an upward shift of the aggregate expenditure line, causing equilibrium GDP to fall e. no change in the aggregate expenditure line or equilibrium GDP