ABSTRACT
Fewer than 10 per cent of the employed population are involved in producing food and other sources of energy in modern industrial societies, and over 98 per cent of total energy output is free for circulation, surplus to the needs of its producers (Cook 1971). People are narrowly specialized, partially producing a good or service which is consumed by many others, for each of whom it represents a very small part of total consumption. About 40 per cent of energy consumption occurs at specialist places of work outside people’s homes. A further one-quarter is used in the movement of people, energy, goods and services necessitated by the complexity of interdependence (Cook 1971).
