If your income increases from $33,000 to $41,000 and your consumption increases from $8,000 to $12,000 . your marginal propensity to consume (MPC) is:

According to the Laffer curve, a decrease in the tax rate will increase tax revenue

A. if the economy is at the farthest point out on the curve. B. if the economy is on the negatively sloped section of the curve. C. no matter the location of the economy on the curve. D. if the economy is on the positively sloped section of the curve.

Goods that cannot be consumed without excluding other consumers are

A) public goods. B) free. C) are not scarce. D) all of these choices.