文本运用中国家庭收入调查(CHIP)数据,将劳动力个体特征变量和城市宏观变量相结合,通过普通最小二乘法、工具变量回归和分行业回归方法,检验了进口开放对城镇居民收入分配的影响。研究发现进口开放对收入具有显著并稳健的正向影响。进一步研究表明,进口开放扩大了城镇居民收入差距,且相对于低技术行业,进口开放对高技术行业、制造业及其他行业的劳动者收入正向影响程度更大。因此,进口开放给予低技能、低收入、低技术行业的个体劳动者更多扶持,对缩小城镇居民收入差距具有重要意义。
This paper used Chinese Household Income Project(CHIP) data in 2002 and 2007,combined the individual labor characteristic variables with the macro city variables, through ordinary least square, instrumental variable and industry classification method,and examined the effects of import openness on the income distribution of Chinese urban residents. The results showed that import openness has robustly and significantly positive effects on the level of residents' income. Further research found that import openness enlarged the income gap within urban residents. Compared with employees in low-tech industry, employees working in high-tech industry, manufacturing and others are more likely to be positively influenced by import openness. Hence,assisting low-skilled labor and workers in low-income and low-tech industries has great significance to narrow the income gap within urban residents.