It is only in its era of monopoly that the capitalist mode of production takes over the totality of individual, family, and social needs and , in subordinating them to the market, also reshapes them to serve the needs of capital.  It is impossible to understand the new occupational structure--and hence the modern working class--without understanding this development.  How capitalism transformed all of society into a gigantic marketplace is a process that has been little investigated, although it is one of the keys to all recent social history (188).