專科學校受到升格改制以及四技取代二技學制等兩波政策的衝擊，學校數 與學生人數大幅減少，惟此政策缺乏相關實證研究作為政策調整基礎，有鑑於 此，本文利用主計處長期調查資料，針對高職學歷、專科學校學歷與大學學歷 勞動力之薪資所得進行比較分析。研究結果顯示，專校畢業生的薪資所得顯著 高於高職畢業生薪資所得15.8%─20.1%，但低於大學學歷勞動力薪資 15.5%─21%；這些差距幅度與顯著程度頗為強健（robustness），不受年齡、性 別與婚姻狀態等背景變項加入而減弱。此外，近十二年來專科學歷畢業生不但 拉開與高職畢業生勞動力薪資差異，與大學畢業生薪資差異有縮小的趨勢，從 此一長期趨勢看來，主計處長期的勞動市場調查資料並不支持目前大幅縮小專 科學制規模的政策，主管機關宜審慎尋求實證資料，以體現大幅縮小專科學校 （學制）規模的必要性與正當性。

The policy of upgrading technical education system has caused the decrease of junior colleges. But such policy is not quite justified due to a lack of serious empirical studies. Our research attempts to show this fact by means of comparative analysis of the salaries of the graduates of vocational high school, junior college, and university, found in the Directorate-General of Budget, Accounting, and Statistics.Followings are the findings: (1) Graduates of junior colleges earn more than the graduates of vocational high schools between 15.8%-20.1%. (2) The graduates of junior colleges' salaries are lower than those of universities between 15.5%-21%. (3) The difference is not weakened by the effective of background (age, gender, and marriage, etc). Similar result shows the same trend. That means, the collected data point out the failure of the policy of adjustment that tries to cut realize a fair pay for graduates of vocational school, junior college and university. For this reason, it is suggested that the government should reconsider its policy in favor of junior college.