Ñopo, Hugo (2007). An Extension of the Blinder-Oaxaca Decomposition to a Continuum of Comparison Groups.  Institute for the Study of Labor Discussion Papers 2921.

The paper proposes an extension of the Blinder-Oaxaca decomposition from two to a continuum of comparison groups. The proposed decomposition is then estimated for the case of racial wage differences in urban Peru, exploiting a novel data set that allows the capturing of mestizaje (racial mixtures).