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The opposite of a free market is a [[command system]], in which the government regulates all businesses for the theoretical central planning of the economy, although this has been shown to have negative effects. Economist [[Friedrich Hayek]] warned however of mixing a [[planned economy]] with a competitive economy, "a mixture of the two means that neither will work." <ref>Friedrich A. Hayek, [http://www.iea.org.uk/files/upld-publication43pdf?.pdf ''Road to Serfdom'',] Reader's Digest Condensed Version, April 1945, pg. 38.</ref>
A ''[[mixed economy]]'' contains both private-owned and state-owned enterprises or that combines elements of capitalism and socialism, or a mix of market economy and command economy. For example, the UK is said to have a free market economy in almost all goods and services but retains a bureaucratic state-run national health servicesocialised healthcare regime. This is justified on the grounds that it will ensure that British subjects have access to health care which is supported out of state coffers. A similar system is provided by Canada, whose citizens sometimes cross the border to the U.S. to get decent medical treatment; in some cases these patients will be reimbursed by the government.
Milton Friedman said,
