The downside of relying on self-selection is that, in the current job market, applicants may try for jobs that they know won't fit them, convincing themselves that they can change.
但依靠自我选择的劣势在于，在当前的就业环境下，即便知道自己并不适合这份工作，求职者也可能进行尝试，并相信自己能够改变。
So, it looks like their previous results are not the result of self-selection.
因此，看上去他们早期的结论并不是自我选择下的结论。
Once people have been randomly allocated to groups, the counter-argument about self-selection is ruled out.
一旦人们被随机分配到各组，就排除了自我选择的反对理由。
Besides, we find no significant self-selection bias in the wage equations, which suggests poor job mobility in our samples.
我们还发现，工资方程并不存在显著的自我选择偏误，这表现出样本中职工的工作流动性还不高。
Then, with control on other variables and labor market self-selection, the results of simple wage regression indicate that gender wage gap was significantly rising over time.
然后，控制了个人和工作特征及劳动力市场选择的影响，简单工资方程回归结果显示男性和女性劳动力存在显著的性别工资差异，并有扩大的趋势。
Self-selection bias and sampling bias are also discussed at the end of the paper.
与此相关的自选择偏差和抽样偏差问题也在文中进行了讨论。
Self-selection bias and sampling bias are also discussed at the end of the paper.
与此相关的自选择偏差和抽样偏差问题也在文中进行了讨论。
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