Bureaucracy is defined as a large organization that is structured hierarchically to carry out specific functions. Bureaucracy can exist in both the public and private sectors. Public bureaucracies do not have a single set of leaders, are not organized to make a profit and are not necessarily efficient or responsive to change. See Table 13-1 for various plans to end government inefficiency. There are several different theories about how bureaucracies function. The Weberian model viewed bureaucracies as rational, hierarchical organizations in which power flows from the top down. The Acquisitive model focused on the belief that top-level bureaucrats always try to expand their budget and staff. The Monopolistic model believed that bureaucracies are like monopolies in that they are less efficient and more costly to operate. The federal bureaucracy in the United States enjoys a greater degree of autonomy than in other countries because of its size, the federal system, and lack of ownership of enterprises.