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卢卡斯(Lucas,2004)声称通过分配当前的产出(经济平等)来改进人们生活水平的潜能与经济增长相比是微不足道的,因此政府应该将其主要精力放在维持尽可能高的经济增长速度上。卢卡斯的论断不能适用于中国的具体情况。以消费增长和消费不平等来衡量经济增长和经济不平等,运用30个省份的人均消费数据从三个角度比较中国经济增长的福利收益与经济不平等的福利成本。研究结果表明,对于合理的偏好参数和中国的宏观经济数据,经济增长带来的福利收益远不能抵消经济不平等带来的福利成本。因此,中国现阶段在积极促进经济增长的同时,必须把消除经济不平等放在与经济增长同等重要的位置上。
Lucas (2004) claims that the potential to improve people’s livelihoods through the distribution of current output (economic equality) is negligible compared with economic growth, so the government should focus its efforts on maintaining the economy as high as possible Growth rate. Lucas’s assertion can not be applied to China’s specific circumstances. Using economic growth and economic inequality as a measure of inequality of consumption and consumption, the per capita consumption data of 30 provinces are used to compare the benefits of economic growth in China with those of economic inequality from three perspectives. The results show that for the reasonable preference parameters and China’s macroeconomic data, the welfare benefits brought by economic growth can not offset the welfare costs caused by economic inequality. Therefore, at the same time that China is actively promoting economic growth, China must put the elimination of economic inequality on an equal footing with economic growth.