Barnard comes close to joining Roethlisberger and Dickson in their assumption that management behavior is mainly rational and workers' behavior nonra… - Charles Perrow

American society today is shaped not nearly as much by vast open spaces as it is by vast, bureaucratic organizations. Over half the working population toils away at enterprises with 500 or more employees--up from zero percent in 1800. Is this institutional immensity the logical outcome of technological forces in an all-efficient market, as some have argued?

It [a power based model of organization] sees organizations a intentional human constructions but not necessarily rational systems guided by official goals; as bargaining areas rather than cooperative systems; as systems of power rather than coercive institutions reflecting cultural norms, and as resources for other organizations and groups rather than closed systems. If we define organizations, then, as intentional human constructions wherein people and groups within and without the organization compete for outputs of interest them under conditions of unequal power, we have posed the issue of effectiveness quite differently

Organisations are viewed as systems which utilise energy in a patterned, directed effort to alter the condition of basic materials in a predetermined manner.