Beginning in November 2001, an international collaborative network has gradually assembled with the aim of developing a brief, standard Index to measure population subjective wellbeing. The International Wellbeing Group currently involves researchers from a number of countries.
Each Researcher intends to trial the Index in their own country. Moreover, Group members are agreed that, to whatever extent possible, the same form of the Index will be used.
It is not, however, envisaged that the Index will remain unchanged over time. Instead, an initial iteration of the Index has been agreed, and a key concept underpinning this project is that it will undergo controlled evolution as theory and empirical data are brought to bear on its composition. To this end there is an active e-forum that discusses the composition of the Index as data are progressively collected and analyzed.