1. Romer model (50 points). Suppose the parameters of the Romer model take the following values: Ao = 100, z = 0.2, L = 1. Now consider two different economies. Economy A allocates 5% of workers in producing ideas (lA = 0.05) while economy B only allocates 3% of workers (IB = 0.03). (a) Use Excel to plot the time series of output per person (yt ) in these two economies for ten periods (t = 1, 2, ..., 10). (b) Compare the growth paths of two economies and explain the difference in traject tory. (c) Redo (a) and (b) with z = 0.4 and comment on the difference from original result