 Other studies have found no consistent and systematic relationship between the type of financing of health care and cost containment; the efficiency of operation of the health care system itself appears to depend much more on how providers are paid and how the delivery of care is organized than on the method used to raise these funds.Some supporters argue that government involvement in health care would reduce costs not just because of the exercise of monopsony power, e.g.in drug purchasing, but also because it eliminates profit margins and administrative overhead associated with private insurance, and because it can make use of economies of scale in administration.