| 中国城乡恩格尔系数差异度的灰色建模与预测 |
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| 引用本文： | 于雪,陈立军.中国城乡恩格尔系数差异度的灰色建模与预测[J].西安工程科技学院学报,2014(2):257-261. |
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| 作者姓名： | 于雪 陈立军 |
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| 作者单位： | 西安工程大学管理学院; |
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| 摘 要： | 为了提高预测精度，利用灰色GM （1，1）预测模型对中国城乡居民恩格尔系数差异度的变动趋势进行实证研究，并利用残差灰色预测模型对原始GM （1，1）模型进行修正。修正结果表明，残差修正后的GM （1，1）模型预测精度有显著提高。同时，中国在经历了二元经济结构后，目前整体上已经达到了城乡一体化，城乡居民生活质量基本一致的状态。
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| 关 键 词： | 灰色预测 马尔可夫过程 恩格尔系数 城乡居民 生活质量 |
Prediction and grey-model of China urban and rural Engel coefficient difference |
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| YU Xue,CHEN Li-jun.Prediction and grey-model of China urban and rural Engel coefficient difference[J].Journal of Xi an University of Engineering Science and Technology,2014(2):257-261. |
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| Authors: | YU Xue CHEN Li-jun |
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| Affiliation: | (School of Management, Xi＇an Polytechnic University, Xi＇an 710048,China |
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| Abstract: | The research on China urban and rural residents trend of the Engel coefficient difference is studied .In order to improve the prediction accuracy ,the original GM （1 ,1） is revised by the grey residual model .The results show that the revised GM （1 ,1） model improves significantly .Meanwhile ,after a du-al economic structure in China ,rural-urban integration has heen achieved on the w hole at present ,and the quality of life in urban rural has basically reached a consistent state . |
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| Keywords: | grey prediction Markov process Engel coefficient urban and rural residents life quality |
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