Not only the quality of the training but also quantity of the training has been
considered as one of the important variable that explain the relationship between
vocational training and employment. You(2008) found that the duration of unemployment of vocational training participants is shorter than the one of unemployed and not trained. Similar result were also found in the studies of Kong(1997) and Kim(2004), however the reverse results were also found in the studies of Castle(1989) and Nam(2004).