1. Atkinson, A. B. (1983). The economics of inequality (2nd ed.). Oxford: Clarendon.
2. Braakmann, A. (2010). Zur Wachstums- und Wohlfahrtsmessung. Die Vorschläge der Stiglitz-Sen-Fitoussi-Kommission und der Initiative “BIP und mehr” (To growth and wellbeing measurement. The proposals of the Stiglitz-Sen-Fitoussi Commission and of the initiative ‘Beyond GDP’). Wirtschaft und Statistik, 62(7), 609–614.
3. Brümmerhoff, D. (2002): Volkswirtschaftliche Gesamtrechnungen (National accounts) (7th ed.). Munich & Vienna: Oldenbourg.
4. Bureau of Labor Statistics (BLS, United States Department of Labor). (2012). International comparisons of GDP per capita and per hour, 1960–2011. Washington, DC: BLS.
www.bls.gov/fls/intl_gdp_capita_gdp_hour.htm
. Accessed 30 June 2013.
5. Charmes, J. (2006). Measurement of the contribution of informal sector/informal employment to GDP in developing countries: Some conceptual and methodological issues. Expert Group on Informal Sector Statistics (Delhi Group), 11th & 12th May 2006, New Delhi, India (Agenda Item 3: Measuring contribution of informal sector/informal employment to GDP; mimeo).