题干问：
Which of Stephenson’s comment to her supervisor is correct?
Comment 1: It is likely that some unintended consequences will be Identified in regulatory filings prior to implement of new legislation.
Comment 2: Indirect costs arise because of unintended consequences and may result in high unanticipated costs.
PZ课件PPT174页并没有看到关于regulatory filing的定义解释，可能何老师上课讲了没记下。只记得是unintended consequences不容易被提前发现。
请问这个regulatory filling是什么操作，为什么能够帮助提前发现unintended consequences?
谢谢助教回答 : )
