Deregulation is the reduction or removal of government rules that control how an industry operates, such as limits on prices, on who may enter a market, on ownership, or on what products firms may sell. Its usual aim is to increase competition, lower prices and encourage innovation by letting markets, rather than officials, decide. It is often paired with privatization and trade liberalization as part of broader economic liberalization.
Deregulation is not the same as having no rules. Deregulated markets still have competition law, consumer protection and safety rules, and some reforms replace detailed controls with lighter, rule-based oversight, sometimes called re-regulation. Debates about deregulation often reflect wider differences between supporters of free-market economics and those who stress market failures.
Deregulation in plain terms
Picture a town where the council decides how many taxis may operate, sets every fare and approves every new route. Rides are predictable, but fares are high and waits are long because nobody new may join. If the council drops the cap and lets drivers set their own prices, more drivers arrive, prices may fall and service may improve, but some drivers cut corners and some passengers get a worse deal at busy times.
Deregulation is that kind of change across a whole industry. The question is always which rules were protecting the public and which were mainly protecting the existing firms from competition.
Major waves of deregulation
A large wave began in the United States in the late 1970s and spread internationally:
- Transport. The Airline Deregulation Act of 1978 ended federal control of US airline fares and routes, followed by trucking and rail reforms in 1980.
- Banking. The Depository Institutions Deregulation and Monetary Control Act of 1980 phased out caps on deposit interest rates, and the Garn-St Germain Act of 1982 widened what savings and loan associations could do.
- Securities markets. The UK's Big Bang in 1986 ended fixed commissions and opened the London Stock Exchange to outside owners.
- Bank structure. The Gramm-Leach-Bliley Act of 1999 repealed the parts of the Glass-Steagall Act that separated commercial from investment banking, and the Commodity Futures Modernization Act of 2000 left most over-the-counter derivatives lightly regulated.
- Developing economies. India's 1991 reforms dismantled much of the industrial licensing system, and many countries liberalized interest rates and capital controls, often as part of structural adjustment programs.
The European Union pursued similar goals by opening national telecoms, energy and airline markets to competition across the single market.
Financial deregulation in emerging markets
In the early 1970s the economists Ronald McKinnon and Edward Shaw argued that "financial repression", meaning interest-rate caps, directed credit and high reserve requirements, kept savings low and steered credit to favored borrowers. Their work influenced reforms in Latin America, Asia and elsewhere, which freed interest rates, licensed new banks and opened capital accounts. Pakistan, for example, began removing credit ceilings and administered rates in the early 1990s while selling state-owned banks.
Experience showed that sequencing matters. Chile's early liberalization ended in a banking crisis in 1982, and the Asian financial crisis of 1997 hit several economies that had opened to short-term foreign borrowing before building strong supervision. The IMF and World Bank now generally stress that capital-account opening should follow, not precede, sound banking regulation; see capital account liberalization.
Arguments for deregulation
Supporters argue that many rules raise costs, block new entrants and protect incumbents. Public choice theory and the idea of regulatory capture suggest that regulators can end up serving the industries they oversee. Evidence often cited includes the fall in average real airfares after 1978 and the drop in share-trading costs after commission deregulation. Deregulation can also reduce rent-seeking and widen consumer choice.
Criticisms and crises
Critics argue that some deregulation removed safeguards that addressed real market failures, especially in finance, where moral hazard, asymmetric information and systemic risk are important. The US savings and loan crisis of the 1980s followed rapid expansion by newly freed but still deposit-insured institutions. Many analysts also link the 2008 financial crisis to light oversight of derivatives, shadow banking and mortgage lending, though others stress loose monetary policy, housing policy and global capital flows instead. Deregulated airline and energy markets have seen service cuts, consolidation and price spikes in some periods.
After 2008 the direction reversed in finance, with the Dodd-Frank Act and Basel III. It has since partly swung back: a 2018 US law raised the asset threshold for the strictest bank oversight from $50 billion to $250 billion, a change debated after the failure of Silicon Valley Bank in 2023, and in January 2025 a US executive order directed agencies to identify at least ten existing regulations for repeal for every new one they issue. Debates continue over how to measure regulatory costs and benefits, often using cost-benefit analysis.