In its present formulation the Human Development Index (HDI) is a measure of the well-of nations considering two fixed reference values for each indicator, the so-called fixed goals development, as normalization parameters. As is well known, the HDI is insensitive to the relative performance of a country with respect to those of a reference group of nations. Nevertheless, several cent works on individuals' perception of their well-being reveal that subjective well-being positively correlated with upward mobility opportunities and negatively correlated with the persistency of well-being inequalities within a reference group. Therefore, in this paper, we suggest to handle extension of the HDI aimed at integrating the absolute perspective implicit in the national index with a relative one.