Nationalization (also spelled nationalisation) is the transfer of a privately owned company, industry or asset into ownership or control by the state. The government may buy shares at an agreed price, pass a law that vests the assets in a public body, take a controlling stake during a rescue, or simply seize the assets. When the state takes property without adequate payment the act is usually called expropriation or confiscation.
Nationalization is the opposite of privatization, and the balance between the two has swung back and forth over the past century. It is a central tool of socialism and of state capitalism, but governments with market-oriented economies have also nationalized firms in emergencies, especially banks during financial crises. The result is an enlarged public sector within what economists call a mixed economy.
Nationalization in plain terms
Imagine a town's only bus company is run by a private owner. If the council decides the service is too important to be left to someone chasing profit, or the company is about to go bust and leave people stranded, the council may buy the company and run the buses itself. The routes and drivers stay the same, but the owner is now the public, through the council.
Nationalization does this at national scale, for oil fields, railways, banks or steelworks. Whether it helps depends on how well the state runs the business, how fairly the old owners are treated, and whether the public gets a better or cheaper service.
Why governments nationalize
- Strategic control. Governments may want national control over a strategic industry such as energy, defense or natural resources, often to keep economic rent at home.
- Natural monopolies. Networks such as railways, water and electricity grids have strong economies of scale, so competition is limited and public ownership is one alternative to regulating a private monopoly.
- Crisis rescues. A failing bank or company whose collapse would cause wider damage may be taken over to protect depositors, jobs or the payment system.
- Ideology and redistribution. Socialist and many nationalist governments see public ownership as a way to direct investment and share profits more widely.
History
Mexico nationalized its foreign-owned oil industry in March 1938, creating Pemex. In Britain the Attlee government of 1945 to 1951 nationalized the Bank of England, coal, railways, electricity, gas and steel. Iran nationalized the Anglo-Iranian Oil Company in 1951, and Egypt nationalized the Suez Canal Company in 1956. India nationalized 14 major banks in 1969 and six more in 1980, and Pakistan nationalized large industries from 1972 and its banks in 1974. France's Mitterrand government nationalized major banks and industrial groups in 1982, many of which were sold again within a few years.
The 2008 financial crisis brought a wave of emergency takeovers in market economies. The UK nationalized Northern Rock in February 2008 and took a majority stake in Royal Bank of Scotland; the shares in the renamed NatWest Group were fully sold back to private investors by 2025. The United States placed Fannie Mae and Freddie Mac into government conservatorship and took a controlling stake in AIG. In each case the stated aim was stability rather than permanent ownership.
A more recent example is British passenger rail. The Passenger Railway Services (Public Ownership) Act 2024 made public operation the default as private contracts expire; South Western Railway became the first operator transferred, on 25 May 2025, with others following and the program planned to finish by the end of 2027.
Compensation and international law
National constitutions and international law usually require compensation when a state takes property. Capital-exporting countries long argued for "prompt, adequate and effective" compensation, a formula associated with US objections to the Mexican oil takeover, while many developing countries backed the United Nations' 1962 resolution on permanent sovereignty over natural resources, which speaks of "appropriate" compensation. Today most disputes are handled under bilateral investment treaties, often before the World Bank's ICSID tribunal. Fear of uncompensated seizure raises sovereign risk and can deter foreign direct investment, reflecting the importance of secure property rights.
Arguments for and against
Supporters argue that public ownership can align essential services with public goals rather than shareholder returns, keep profits from natural resources in the country, lower financing costs because governments borrow more cheaply, and prevent the private capture of monopoly profits. Some point to well-run state firms, such as Norway's majority-owned Equinor, as evidence that public ownership can be efficient.
Critics argue that state firms often suffer from weak incentives, political interference, overstaffing and soft budget constraints, and that losses fall on taxpayers through government spending and borrowing. Public choice theory warns that managers may serve politicians rather than customers, and nationalizations without fair compensation can damage investor confidence for years. Economists across the spectrum agree that the outcome depends heavily on governance, competition and regulation rather than ownership alone.