Python 基尼系数(Gini coefficient)(一) 定义:基尼系数是指国际上通用的、用以衡量一个国家或地区居民收入差距的常用指标。 目的:查看一个国家贫富差距的程度。 提出者:最早由意大利统计与社会学家Corrado Gini在1912年提出。 范围:最大值为1,最小值为0,基尼系数越接近0表明收入分配越是趋向平等。国际惯例把0.2以...
(1)Gini1=1-∑k=1N(Yk-Yk-1)(Xk+Xk-1) Definition 2 In an alternate formula that is mathematically equivalent to Definition 1, the Gini coefficient can also be defined as half of the relative mean absolute difference. This method sums the differences in the metric value Xk across all the...
The Gini coefficient is equal to the area between the actual income distribution curve and the line of perfect income equality, scaled to a number between 0 and 100. The Gini coefficient is the Gini index expressed as a number between 0 and 1. How to Calculate The Gini Coefficient As previ...
the country's Gini coefficient has also grown sharply over the last decades. As shown by the graph at hand, China's Gini coefficient ranged at a level higher than the warning line for increasing risk of social unrest over the last decade. However, the situation has slightly improved since ...
2. Gini Coefficient G=2⋅FG=2⋅F whereFFis the area between the curve and the bisection line (i.e., diagonal line). Property: 0≤G≤10≤G≤1 G=0G=0: no concentration G=1G=1: perfect (i.e. extreme) concentration Specially (Heumann et al, pp. 61): ...
United States US: Gini Coefficient (GINI Index): World Bank Estimate data was reported at 41.500 % in Dec 2016. This records an increase from the previous number of 41.000 % for Dec 2013. United States US: Gini Coefficient (GINI Index): World Bank Estima
or the Gini coefficient is equal to The Gini index of a sample is a consistent, but biased, estimator of the population Gini index. A less biased version of the Gini index is given by Jackknifing and bootstrapping can be used to obtain unbiased estimates of the population Gini index as...
Thus, it is critical to develop and implement executive strategies to improve and maintain the credibility of the nursing profession and to train competent nurses by focusing on creating equal health care opportunities for both women and men. Third, using the Gini coefficient led to no significant...
The Gini index is often represented graphically through theLorenz curve, as depicted below, which shows income (or wealth) distribution by plotting the population percentile by income on the horizontal axis and cumulative income on the vertical axis. The Gini coefficient is equal to the area below...
The Gini coefficient, conventionally used as a macroeconomic descriptor of inequality, is potentially useful to quantify epidemiological heterogeneity. With a potential range from 0 (all populations equal) to 1 (populations having maximal differences), this coefficient is used here to show the extent ...