一个经济学问题（英语）最好英语回答还要图表~~回答得好追加200分
Someeconomistsworrythattheagingpopulationsofindustrialcountriesaregoingtostartrunning...
Some economists worry that the aging populations of industrial countries are going to start running down their savings just when the investment appetite of emerging economies is growing. Using a supply-and-demand diagram, illustrate the effect of these phenomena on the world market for loanable funds.
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图没法画上来,就用语言描述吧,反正也不复杂,横轴是贷款数量，纵轴是利率，中间是两条交叉的斜线,斜向右上的那条是存款的供给曲线,它向左平移,同时斜向右下的投资需求曲线向右移动，与新供给曲线交在新均衡点上.
As the savings is running down, the supply curve of the saving moves to the left.While the investment appetite is growing, that means the demand curve of the loan shifts to the right.In the new equilibrium, the rate is larger,and the quantity of the loan can not be decided in this model.In one hand the decrease of supply getting the quantity down.In other hand, the increase of the demand of loans makes the quantity of loans large.So we could not decided the quantity without any others conditions.
As the savings is running down, the supply curve of the saving moves to the left.While the investment appetite is growing, that means the demand curve of the loan shifts to the right.In the new equilibrium, the rate is larger,and the quantity of the loan can not be decided in this model.In one hand the decrease of supply getting the quantity down.In other hand, the increase of the demand of loans makes the quantity of loans large.So we could not decided the quantity without any others conditions.
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