The tables above show the marginal costs and benefits from production of paper. The efficient level of output is ________ of paper

In the Keynesian model, the larger the marginal propensity to consume, the:

a. larger the multiplier. b. larger the marginal propensity to save. c. higher the income level of the economy. d. smaller the change in income derived from a given change in government spending.

Refer to the figure below. If the price is $4 today and there is no change in either supply or demand, one would expect the price in the future to be:

A. greater than $6. B. $4. C. less than $4. D. greater than $4.