Which of the following is not a problem associated with monetary policy? a. monetary policy may be ineffective if investment and consumption fail to respond to changes in interest rates. b. it is difficult to predict interest rates because a number of other factors also affect interest rates. c. there is considerable uncertainty on the value of the money multiplier. d. none of the above.

8. problems and applications q8there are four consumers willing to pay the following amounts for haircuts, and there are four haircutting businesses with the following costs: consumers' willingness to payyvette: $35cho: $15sean: $45bob: $25firms' costsfirm a: $40firm b: $20firm c: $10firm d: $30each firm has the capacity to produce only one haircut.for should be given.which businesses should cut hair? check all that apply.firm afirm bfirm cfirm dwhich consumers should have their hair cut? check all that apply.bobchoseanyvettethe maximum possible total surplus is