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This paper reviews the social science literature that has appeared in the past two decades on self-help and mutual aid groups. It starts with a brief description of the nature, scope, and magnitude of current self-help mani festations, and a sketch of scholarly work concerning them. Indigenous and largely spontaneous groups organized on the self-help/mutual aid pattern constitute an important variety of informal, voluntary associations in modern societies; they have received little systematic study by social scientists.
Alfred H. Katz (Sat,) studied this question.