For example, in the 1960s Europe moved towards the development of social indicators to complement income measures (Atkinson et alv 2002). Key innovations included the 1968 Swedish Level of Living Study (Johansson, 1973, Allardt and Uusitalo, 1972), Jacques Delors' 1971 "Les indicateurs sociaux", and Peter Christian Ludz's "Materialien zum Bericht zur Lage der Nation" (1971). The above mentioned multidimensional concept of "social exclusion" (Lenoir, 1974) also motivated the development of social indicators.