[2] Together with the Swedish politician and sociologist Joakim Palme, he wrote the work "The Paradox of Redistribution and Strategies of Equality",[3][4] which has some detractors about its principles.
From 1959 to 1964 he worked as a sociologist at the Institute of Military Psychology (Militärpsykologiska institutet) and from 1965 to 1966 at the Swedish Metalworkers Union.
He then worked as an associate professor in the Department of Sociology at Stockholm University (1966–1968).
Notable is the publication Social Pressures and Attitudes in Military Training, the thesis with which he presented himself when he graduated in 1962 in sociology.
From the 1970s onwards, he focused largely on labour disputes and class struggle, and to a lesser extent on health care research.