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The Gini coefficient is a number that measures how unequally income or wealth is distributed among people in a group, where a score of zero means perfect equality and higher scores indicate greater inequality. It matters because it helps policymakers and researchers understand and compare how fairly resources are spread across different countries or populations.
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基尼系數(英語:Gini coefficient),是20世纪初意大利学者科拉多·基尼根据洛伦兹曲线所定義的判断年收入分配公平程度的指标,是比例數值,在0和1之間。基尼指數(Gini index)是基尼系數乘100倍作百分比表示。在民众收入中,基尼系數最大为“1”,最小為“0”。前者表示居民之间的年收入分配绝对不平均(即该年所有收入都集中在一個人手裏,其餘的國民沒有收入),而后者则表示居民之间的该年收入分配绝对平均,即人与人之间收入绝对平等,基尼系數的实际数值只能介于这两种极端情况,即0~1之间。基尼系數越小,年收入分配越平均;基尼系数越大,年收入分配越不平均。要注意基尼系数只计算某一时段,如一年的收入,不计算已有資產,因此它不能反映國民的总积累财富分配情况。
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).
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