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作者: nbnhjf    时间: 2004-3-18 14:10     标题: A question:


以下为一道逻辑题(假设题型),实在不明白:
One state adds a 7 percent sales tax to the price of
most products purchased within its jurisdiction. This
tax, therefore, if viewed as tax on income, has the
reverse effect of the federal income tax: the lower
the income, the higher the annual percentage rate at
which the income is taxed.
The conclusion above would be properly drawn if which
of the following were assumed as a premise?
A. The amount of money citizens spend on products
subject to the state tax tends to be equal across
income levels.
(正确答案)
老师讲解:
本来,sales
rate
(销售税率)=
sales tax / sales
;(那么one
state
sales
rate
就是7%);
现在,sales
rate
(销售税率)=
sales tax /
income
;并且income越低,其税率越高,推出sales
tax
不变。而sales
tax
不变,根据最初的条件,那么sales*7%不变,即sales不变。然后就推出A答案正确,即:无论收入高低,上街花钱都一样。。。
反正我是不明白,就算sales不变,又跟收入有何关系呢?????
整篇到底是什么意思呢,还请您用自己的语言解释一下吧。


作者: himba    时间: 2004-3-18 14:13

我觉得可能应该这样理解
sales tax
对某一种产品是固定的,就象国内的增值税一样,是它的定价X税率
sales tax数量不变时,工资水平越低,它相应占的比例越高fficeffice" />


作者: robert    时间: 2004-3-18 14:14

说得对。
要达到the lower the income, the higher the annual percentage rate at
which the income is taxed
这样一种结果,就必须有一个条件:假设不同工资水平的人花在商品上的钱是一样的。
比如说买100块的东西,1000块收入的人和10000块收入的人所交纳的税完全一样。也就是说,税收占他们工资的比例:收入少的反而纳税多。
按照反之必不然的方法也同:假设不同工资水平的人花在商品上的钱不同,则1000块收入的只买10块的东西,10000块收入的买100块的东西,那题中已知和结论就失去了联系,也就是被断桥了。fficeffice" />




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