The aim of this chapter is to present innovations associated with the linkage of statistics and well-being and human development, where the contexts of application are poor countries, and where there is a further linkage with international efforts to tackle multidimensional poverty. The chapter begins with background information focused on the following themes: recent developments in the search for innovations; flaws in the assumptions of the existing metric (GDP); the importance of process data and its linkage with subjectivity; innovations in the human development index (HDI) system; subjective/processual breakthrough enabled by the gross national happiness system; and a brief introduction to the Flinders University statistical innovation developed to assess people's experiences of development. The chapter then presents the technical details of this innovation, operationalized in calculating human well-being in Timor-Leste, and in the Indian state of Assam. This section covers the computation of the HDI of a section of the population defined by age, namely, the population of the youth of Timor-Leste. No previous attempt is known to have been made to compute HDI for a section of the population defined by age. The final part of the chapter describes the quantification of well-being, which was operationalized as the human well-being index in Assam. This index is presented as a complementary component of the HDI system. It represents the first time a National Human Development Report has attempted to measure well-being, a subjective aspect of the quality-of-life, through developing a dedicated index.