Self-employment still forms an important element in the social structure of modern societies. However, the group of the self-employed has experienced an enormous economic and social change. After a long term decline until the beginning of the 1970s in almost all industrialised countries,...

Shafer's evidence theory is a branch of the mathematics of uncertain reasoning that allows for novel possibilities to be conceived by a decision-maker. Many of its findings exhibit striking similarities with an alternative decision theory purported by Shackle in the 1950s, before expected...