本文利用「修正」的Dickens and Lang(1985)內生轉換模型，以1978年與 1992年「人力運用調查」資料進行分析，發現台灣的勞動市場為一雙元勞動市場， 亦即，市場存在分隔的現象，並且人力資本變數對薪資的影響力在次要市場中竅 不明顯。和其有相同屬性的男性勞動力相比，女性勞動力進入主要市場之機率相 對較低，這顯示女性在進入主要市場時將面臨非經濟的障礙，此外，藉由對不同 時點之男、女性勞動力在主要市場工作機率分佈情況的比較，我們發現女性勞動 力進入主要市場所面臨的非經濟障礙在近年有降低的趨勢。這種趨勢可用以解 釋，近年來女性勞動力在專門性及技術性人員、行政及主管人員等高階職業之受 雇比例逐年增加之傾向。

　　　　　Using- data from the 1978 and 1992 Taiwan Manpower Surveys, weestimate a revised model of Dickens and Lang (1985). Our resultsare very closely in line with the predictions of dual labor markettheory that there exists two distinct labor markets in Taiwan, withthe returns to education and experience being significantly higherin the primary market than in the secondary market. The resultsalso provide support for the hypothesis that there are noneconomic barriers that prevent women from emering rhc primary market.In addition, the noneconomic barriers faced bv women have beenshown to be lessened in 1992 as compared to 1978. which is consistent with the fact that the proportion of female workers in whitecollar occupations has been steadily increased m Ts.:wan since 1978.