The US health care system reflects the free market of the US economy -
there is no fixed budget and no limit on expenditures in the loosely
structured matrix of largely private-sector health industry components
. Mainly because of the inaccessibility of adequate health care far a
large segment of the population, and because the enormous cost of care
threatens financial ruin for many more people, the first major reform
of the system was debated in Congress for most of 1994, though, in th
e end, no legislation was passed. One focus of the debate on spending
has been the problem of excessive use of expensive medical technology
and the need for some control, which, by and large, is lacking in the
existing system. Health care technology assessment itself is a thrivin
g industry in the United States, used by government, insurers, medical
societies, hospitals, and other groups for their own purposes. At the
national policy level, few opportunities for technology assessment to
affect the health care industry exist, so most effort is directed at
trying to affect medical practice at the level of the individual hospi
tal and practitioner. The discernible effect of technology assessment
has been minimal.