Attempts to explain sex-related wage differentials generally rely on the human capital and segmentation labor market theories. The human capital theory explains individuals' position in the labor market primarily in terms of factors determining their productivity, whereas segmentation theory focuses on differences among jobs as determinants of the distribution of income. The two theories are often presented as competing because the former emphasizes differences among people that determine their productivity, whereas the latter considers job characteristics. A new model that considers the two theories as complimentary rather than competing was developed and used to analyze the wages of adults who are employed full-time in a single job in Saskatchewan. Of the 25,000 records that fit the selection criteria, 1,000 were randomly selected for a working data file. The subsamples, which consisted of records for 525 men and 475 women, were analyzed with respect to the following wage-determining variables: age, marital status, educational level, type of economic family, age of youngest child, job tenure, public/private-employee status, industry, occupation, unionization, and firm size. The analysis established that the two dominant labor market theories taken together do a better job of explaining men's wages than women's. Wage determination models using the women-only and men-only subsamples are appended. (Contains 23 references.) (MN)