Others are of the belief that such 'interests', particularly symbolic dimensions such as status are epiphenomenological by-products of more fundamental economic conflict (Taylor, Walton & Young 1973; Quinney 1974, for example). For these theorists, societal conflict from which crime emerges is founded on the fundamental economic inequalities that are inherent in the processes of capitalism (see, for example, Wikipedia article on Rusche and Kirchheimer's "Punishment and Social Structure", a book that provides a seminal exposition of Marxian analysis applied to the problem of crime and punishment). Drawing on the work of Marx (1990 Engels, (1984 [1845); and Bonger (1969 ) among others, such critical theorists suggest that the conditions in which crime emerges are caused by the appropriation of the benefits others' labor through the generation of what is known as surplus value, concentrating in the hands of the few owners of the means of production, disproportionate wealth and power.