An aide to a u. s. congressman computes the effect on aggregate demand of a $20 billion tax cut. the actual increase in aggregate demand is less than the aide expected. which of the following errors in the aide's computation would be consistent with an overestimation of the impact on aggregate demand?
a. the actual mpc was larger than the mpc the aide used to compute the multiplier.
b. the aide thought the tax cut would be permanent, but the actual tax cut was temporary.
c. the increase in income shifted money demand less than the aide had anticipated.
d. the increase in income resulted in investment rising more than the aide had anticipated.

Dr. sperry, a biologist, is using excel to track growth rates of different populations of bacteria. she has a very complex formula in one cell. it begins with “round”. dr. sperry would like to see exactly how excel’s calculation reached the final rounded value that she sees in the cell. what could dr. sperry do to best understand how the calculation was made? try different formulas on her own until she reaches the value shown in excel click on the evaluate formula button in the formulas tab and then click “step in” select the cell and then look at the formula in the formula field of the ribbon remove “round” from the formula in order to see the actual value before rounding