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甜甜 · 2022年11月28日

正确答案解析的最后一句话

NO.PZ2022071403000079

问题如下:

Question

If a government increases its spending on domestically produced goods by an amount that is financed by an equivalent increase in taxes, the aggregate demand will most likely:

选项:

A.increase. B.decrease. C.remain unchanged.

解释:

Solution

A is correct. Aggregate demand rises when the government increases spending by the same amount as it raises taxes because the marginal propensity to spend out of disposable income is less than 1, and hence for every dollar less in disposable income, spending only falls by $c (where c is the marginal propensity to consume). Aggregate spending will fall less than the tax rise by a factor c. This additional output will, in turn, lead to further increases in income and output through the multiplier effect.

B is incorrect. Aggregate demand rises when the government increases spending by the same amount as it raises taxes because the marginal propensity to spend out of disposable income is less than 1, and hence for every dollar less in disposable income, spending only falls by $c (where c is the marginal propensity to consume). Aggregate spending will fall less than the tax rise by a factor c. This additional output will, in turn, lead to further increases in income and output through the multiplier effect.

C is incorrect. Aggregate demand rises when the government increases spending by the same amount as it raises taxes because the marginal propensity to spend out of disposable income is less than 1, and hence for every dollar less in disposable income, spending only falls by $c (where c is the marginal propensity to consume). Aggregate spending will fall less than the tax rise by a factor c. This additional output will, in turn, lead to further increases in income and output through the multiplier effect.

This additional output will, in turn, lead to further increases in income and output through the multiplier effect.

1.这里的additional otput是指GDP的增加吗?如果是的话,GDP是不是因为C减少的幅度小于G增加的幅度从而增加了呢?

2.Additional output是如何通过multiplier effect lead to further increases in income and output?


1 个答案

笛子_品职助教 · 2022年11月29日

嗨,从没放弃的小努力你好:


1.这里的additional otput是指GDP的增加吗?如果是的话,GDP是不是因为C减少的幅度小于G增加的幅度从而增加了呢?

是的,是指GDP增加了。

G和T的变动幅度是一样的,但是乘数不同。


2.Additional output是如何通过multiplier effect lead to further increases in income and output?

GDP增加是由于税收的乘数和政府支出的乘数不同。

例如,政府支出的乘数为3,则增加1000亿政府支持,能增加3000亿GDP。

此时,如果税收的乘数为2,则增加1000亿税收,能减少2000亿GDP。

那么就实现了,政府收支不变(增加了1000亿税收,增加了1000亿支出),但是GDP净增加1000亿的情况。


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