Oaxaca Decomposition Suppose that schooling, experience and union attachment are the only determinants of the hourly income in American States United in 1994. According to the data of the time, men's and women's income could be represented by 20M 2 1. 34 -|- 0.0783114 + 0. 27EXPM l 3. 76Um'onM 11); = 1. 80 + 0. 0703p + 0. 21EXPF | 4. 62Um'onp Characteristics' averages by gender are given by Men Women Wage 14.74 11.69 Yrs. of Schooling (8) 14.15 14.56 Yrs. of Experience (EXP) 13.86 9.32 Belonging to Union 0.32 0.28