基于分组数据测算不均等与贫困等收入分配指标: 兼顾数据截断问题的方法论评估
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万广华, 江葳蕤, 胡晓珊
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Measuring Income Distribution Indicators such as Inequality and Poverty based on Grouped Data: A Methodological Assessment Considering Data Truncation
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Guanghua WAN, Weirui JIANG, Xiaoshan HU
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表2 不同模拟次数下迭代法调整前后偏差情况(单位: %)
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指标 | 分组数 | 模拟次数 | 是否调整 | Lognormal | Gamma | Weibull | Dagum | SM | Beta2 | GB2 | Pareto | 个人收入份额 | 五等份分组 | 100 | 调整后 | 11.89 | 20.81 | 17.53 | 4.97 | 6.10 | 8.56 | 6.30 | 19.49 | 调整前 | 12.69 | 26.42 | 32.51 | 5.21 | 6.11 | 8.77 | 6.28 | 37.49 | 200 | 调整后 | 11.90 | 20.78 | 17.49 | 5.02 | 6.15 | 8.60 | 6.50 | 19.47 | 调整前 | 12.69 | 26.33 | 32.61 | 5.27 | 6.17 | 8.80 | 6.68 | 37.51 | 十等份分组 | 100 | 调整后 | 10.49 | 17.39 | 13.77 | 4.76 | 5.64 | 7.66 | 6.06 | 13.85 | 调整前 | 12.87 | 27.51 | 29.13 | 5.23 | 5.89 | 8.66 | 6.85 | 41.55 | 200 | 调整后 | 10.50 | 17.38 | 13.76 | 4.82 | 5.70 | 7.69 | 5.97 | 13.66 | 调整前 | 12.87 | 27.41 | 29.14 | 5.30 | 5.95 | 8.69 | 6.49 | 40.84 | 基尼系数 | 五等份分组 | 100 | 调整后 | 1.41 | 3.46 | 2.56 | 0.23 | 0.47 | 0.90 | 0.52 | 2.40 | 调整前 | 1.14 | 15.08 | 20.46 | 0.49 | 0.70 | 0.95 | 0.72 | 9.98 | 200 | 调整后 | 1.40 | 3.45 | 2.55 | 0.22 | 0.48 | 0.90 | 0.55 | 2.40 | 调整前 | 1.13 | 15.04 | 20.67 | 0.49 | 0.70 | 0.95 | 1.11 | 9.99 | 十等份分组 | 100 | 调整后 | 0.75 | 1.56 | 1.07 | 0.20 | 0.31 | 0.50 | 0.36 | 0.84 | 调整前 | 0.86 | 17.89 | 15.47 | 0.43 | 0.53 | 0.54 | 1.52 | 13.34 | 200 | 调整后 | 0.75 | 1.56 | 1.07 | 0.20 | 0.31 | 0.51 | 0.34 | 0.82 | 调整前 | 0.85 | 17.85 | 15.56 | 0.43 | 0.53 | 0.54 | 1.02 | 13.00 |
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