Abstract:
In this paper an effort has been made to unveil some hidden and implicit assumptions that has been used in different models dealing with analysis and measurement of contribution of human capital to economic growth. In order to do it we started from the general production function with heterogeneous labor input and general production function with heterogeneous human and physical capital. By introducing different assumptions regarding the partial elasticity of substitution between different factors of production we derived different models for human capital contribution. Apart from making hidden assumptions of existing models explicit we also derived several others models that can be used for the same purposes.