Changes in the Distribution of Male and Female Wages Accounting for Employment Composition Using�Bounds
使用边界方法处理非随机就业选择对工资分布的影响，发现英国低就业率下最坏情况边界对教育或性别工资差异无信息，但通过经济理论约束后，证实了教育组内不平等加剧、教育差异变化及女性相对工资上升。
This paper examines changes in the distribution of wages using bounds to allow for the \nimpact of non-random selection into work. We show that worst case bounds can be informative. \nHowever, since employment rates in the UK are often low they are not informative \nabout changes in educational or gender wage differentials. Thus we explore ways to tighten \nthese bounds using restrictions motivated from economic theory. With these assumptions \nwe find convincing evidence of an increase in inequality within education groups, changes in \neducational differentials and increases in the relative wages of women.