ITU‐T's Technical Reports and Specifications 791 Appendix II UN habitat City Prosperity Index In the Wheel of Prosperity as defined by UN Habitat, the \"spokes\" are the five dimensions of prosperity: Productivity, Infrastructure development, Quality of life, Equity and social inclusion, and Environmental sustainability. Figure 1 – Wheel of Prosperity In the City Prosperity Index each dimension has its own index and it might be built up by a number of indices. The basic City Prosperity Index as reported in a publication consists of the following sub‐indices and indicators: Dimension Definition/variables Productivity The productivity index is measured through the city product, which is composed of the variables: capital investment, formal/informal employment, inflation, trade, savings, export/import, and household income/consumption. The city product represents the total output of goods and services (value added) produced by a city ´ s population during a specific year. Quality of life The quality of life index is a combination of four sub‐indices: education, health, safety/security and public space. The sub‐index education includes literacy, primary, secondary and tertiary enrolment. The sub‐index health includes life expectancy, under‐five mortality rates, HIV/AIDS, morbidity and nutrition variables.