Ever since Mincer (1974), years of labor market experience were used to approximate individual's general human capital, while years of seniority were used to approximate job specific human capital. This specification is restrictive because it assumes that starting wages at a new job depend only on job market experience. In this article I investigate the effects of human capital on wage growth by using a more flexible specification of the wage equation, which allows for rich set of information on past employment spells to affect the starting wages. In addition, I endogenize the labor mobility decision. In order to illuminate the effects of human capital accumulation patterns on wage growth, I compare counterfactual career paths for representative individuals.