老师我问题中的那句句子是按照下面那句话（选自经济学人）中破折号的用法写的，我觉得后面的句子出现很突然，不知道这句话里面破折号后面的成分是否是插入语？

The necessary adjustments will not take place while the state pays workers to wait for their old jobs to return—often on better money than they got before.