Workers who receive employer-sponsored health insurance tend to be paid less in cash wages than they would be without the benefit, because of the cost of insurance premiums to the employer and the value of the benefit to the worker. The value to workers is generally greater than the wage reduction because of economies of scale, a reduction in adverse selection pressures on the insurance pool (premiums are lower when all employees participate rather than just the sickest), and reduced income taxes. Disadvantages to workers include disruptions related to changing jobs, the regressive tax effect (high-income workers benefit far more from the tax exemption for premiums than low-income workers), and increased spending on healthcare.
According to a 2000 Congressional Budget Office (CBO) report, Congress passed legislation creating "two new vehicles Association Health Plans (AHPs) and HealthMarts, to facilitate the sale of health insurance coverage to employees of small firms" in response to concerns about the "large and growing number of uninsured people in the United States."
The first government responsibility is the fixing of the rate at which medical expenses should be negotiated, and it does so in two ways: The Ministry of Health directly negotiates prices of medicine with the manufacturers, based on the average price of sale observed in neighboring countries. A board of doctors and experts decides if the medicine provides a valuable enough medical benefit to be reimbursed (note that most medicine is reimbursed, including homeopathy). In parallel, the government fixes the reimbursement rate for medical services: this means that a doctor is free to charge the fee that he wishes for a consultation or an examination, but the social security system will only reimburse it at a pre-set rate. These tariffs are set annually through negotiation with doctors' representative organisations.
The UK's National Health Service (NHS) is a publicly funded healthcare system that provides coverage to everyone normally resident in the UK. It is not strictly an insurance system because (a) there are no premiums collected, (b) costs are not charged at the patient level and (c) costs are not pre-paid from a pool. However, it does achieve the main aim of insurance which is to spread financial risk arising from ill-health. The costs of running the NHS (est. £104 billion in 2007-8) are met directly from general taxation. The NHS provides the majority of health care in the UK, including primary care, in-patient care, long-term health care, ophthalmology, and dentistry.
Effective group health plan years beginning after September 23, 2010, if an employer-sponsored health plan allows employees' children to enroll in coverage, then the health plan must allow employees' adult children to enroll as well as long as the adult child is not yet age 26. Some group health insurance plans may also require that the adult child not be eligible for other group health insurance coverage, but only before 2014.
Health insurance is a benefit provided through a government agency, private business, or non-profit organization. To determine cost, a provider estimates collective medical expenses of a population, then divides that risk amongst the group of policy subscribers. In concept, insurers recognize that one person may incur large unexpected expenses, while another may incur none. The expense, then, is spread among a group of individuals to make health care more affordable for the common good of all. In addition, public health programs like Medicare, Medicaid, and SCHIP are federally-funded and state-run to provide additional medical coverage to those in vulnerable groups who qualify, such as seniors and those with disability.
A 2011 study found that there were 2.1 million hospital stays for uninsured patients, accounting for 4.4% ($17.1 billion) of total aggregate inpatient hospital costs in the United States. The costs of treating the uninsured must often be absorbed by providers as charity care, passed on to the insured via cost-shifting and higher health insurance premiums, or paid by taxpayers through higher taxes.