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来源：百度知道 编辑：UC知道 时间：2024/06/14 17:33:00
In Fig. 6 I show the form of the curve of W against P for
various values of a.For all values of a the curve is con-
cave downwards, and for values only a little above 2 the
curve has a very fast initial increase, meaning that a large
fraction of the wealth is concentrated in the hands of a
small fraction of the population. Curves of this kind are
called Lorenz curves, after Max Lorenz, who first studied
them around the turn of the twentieth century .
Using the exponents from Table I, we can for example
calculate that about 80% of the wealth should be in the
hands of the richest 20% of the population (the so-called
“80/20 rule”, which is borne out by more detailed obser-
vations of the wealth distribution), the top 20% of web
sites get about two-thirds of all web hits, and the largest
10% of US cities house about 60% of the country’s total
population.
various values of a.For all values of a the curve is con-
cave downwards, and for values only a little above 2 the
curve has a very fast initial increase, meaning that a large
fraction of the wealth is concentrated in the hands of a
small fraction of the population. Curves of this kind are
called Lorenz curves, after Max Lorenz, who first studied
them around the turn of the twentieth century .
Using the exponents from Table I, we can for example
calculate that about 80% of the wealth should be in the
hands of the richest 20% of the population (the so-called
“80/20 rule”, which is borne out by more detailed obser-
vations of the wealth distribution), the top 20% of web
sites get about two-thirds of all web hits, and the largest
10% of US cities house about 60% of the country’s total
population.
在图。 6我查看的形式，曲线瓦特对p为
不同的价值观a.for所有值的一曲线是协商
洞穴向下，和价值观，只略高于2
曲线有一个非常快速初始增加，这意味着一个大
小部分的财富集中在手中的一
小部分人口。曲线的这种
所谓的洛伦兹曲线，后最大的Lorenz ，谁首先研究
他们围绕之交的二十世纪。
使用该指数从表I ，我们可以举例
计算，约有80 ％的财富，应该会在
手中最富有的20 ％的人口（即所谓
“ 80/20规则” ，这是证明，由更详细的观察-
vations的财富分配） ，前20 ％的Web
网站获得大约三分之二的所有Web安打，和最大的
10 ％的美国城市的房子约60 ％的国家的总
人口。