What explains them? Lee notes that unemployed workers enrolled in training courses are too busy with their classes to devote much time to looking for work or seeking interviews. This results in a "lock-in" effect, whereby they are out of the loop, and information doesn't reach them.
李誠解釋，失業者往往因參加職訓，忙於上課，無法分身找工作、面試，而產生經濟學上所謂資訊不流通的「關鎖效果」。