1. As a general rule, the change in the equilibrium level of nation income that results form a given change in the level of investment will be larger the: a. larger the marginal proensity to save. b. Smaller the initial level of national income. c. Larger the marginal propensity to consume. d. Larger the initial level of aggregate expenditures e. Larger the price change 我不太懂这题英文题的意思，它是指说投资水准比什麽的变动对均衡所得的变 动较大，是这个意思吗?? 2. If the consumption funciton is given by C= 50+0.6Yd, where Yd is the disposable income, then an increase in goverment spending of 10 units financed by a tax increase of 10 units will cause. a. output to rise by 0.5 units. b. output to rise by 2.5 units. c. output to rise by 15 units. d. output to rise by 10 units. e. no change in output. 这题我在想，因为政府支出跟课税额度一样，那是不是平衡预算? 因为ΔG=ΔT这个不是平衡预算吗??那所得不是就不变吗?? 我这个想法我也觉得有错，但我实际是哪不对了?? 因为我後来仔细算过最後会上升十单位 --

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