Which of the following is correct?
A) As disposable income increases, the real interest rate rises.
B) As disposable income decreases, saving decreases.
C) The higher a household’s wealth the greater is its saving.
D) Both B and C are correct.
E) Both A and C are correct.
The marginal private benefit curve (MB) is a negatively-sloped straight line. If marginal
external benefit decreases as output increases, the marginal social benefit curve is a
negatively-sloped straight line
A) parallel to and above the MB curve.
B) parallel to and below the MB curve.
C) above the MB curve and steeper than the MB curve.
D) above the MB curve and flatter than the MB curve.
E) below the MB curve and flatter than the MB curve.
Real business cycle theorists believe that the intertemporal substitution effect