Back to Glossary

Entry · Economics

Deregulation

Deregulation is the removal or loosening of government rules that control how an industry operates: who may enter it, what they may charge, and what standards they must meet. For businesses it usually means lower compliance costs and tougher competition arriving at the same time.

Whether that is good news depends almost entirely on whether you are the protected incumbent or the challenger who was previously locked out.

From the Money Master HQ dictionary, founded by Shihan Sheriff (FCMA, VP of Finance at Nomod, CFO at Esanjo Ventures). How these definitions are written.

What it means

Regulation typically does three things: it restricts entry through licences and permits, it constrains prices or terms, and it imposes standards on safety, disclosure or conduct. Deregulation removes or softens some of these, usually on the argument that competition will deliver lower prices and more choice than an official rulebook can.

Industries that have been through significant deregulation over recent decades include airlines, telecommunications, energy supply, road haulage and parts of financial services. The immediate effect on an incumbent is a squeeze from both directions.

Compliance and administration costs fall, which helps, but new entrants without legacy cost structures usually attack the most profitable customer segments first, which hurts more. Margins compress, and the businesses that survive are those that reduce cost as fast as prices fall.

For challengers and customers the picture is generally better. Barriers that previously made entry impossible come down, service innovation tends to accelerate, and prices in the competitive segments often fall noticeably.

The benefits are rarely spread evenly, since competition usually concentrates on dense, high-volume markets while thin rural or specialist markets can see service worsen. The risks are real and worth stating plainly.

Removing standards that existed for a reason can create safety, environmental or financial stability problems that surface years later, and markets that deregulate without adequate competition simply swap a public monopoly for a private one. This is why deregulation is often followed some years later by partial re-regulation targeted at the specific failures that emerged.

For a business planner, the useful discipline is to model deregulation as two separate effects rather than one. Estimate the cost saving from lighter compliance, then separately estimate the margin effect of price competition and volume growth, and see which dominates.

Most companies discover the second effect is far larger than the first.

In practice

Real-world examples.

1

Example

A national energy market opens household supply to competition, and an incumbent supplier that had never needed a marketing department suddenly loses 12% of its customers in 18 months. It responds by cutting service costs and launching fixed-price tariffs it was previously not permitted to offer.

2

Example

Financial advice rules are relaxed for firms below a certain size, cutting the annual compliance burden for a small advisory practice from three staff days a month to one. The owner reinvests the saved time in client meetings, but also finds two new competitors opening in the same town within a year.

3

Example

Route licensing for long-distance road haulage is abolished, allowing any qualified operator to serve any route. Freight rates on busy corridors fall sharply, while operators serving remote regions find their protected margins gone and several routes become uneconomic.

Formula

Calculation

Net operating profit effect = (New total contribution - Old total contribution) + Compliance cost saving Total contribution = (Selling price - Variable cost per unit) x Units sold A regional utility sells 800,000 units a year at $50 with a variable cost of $30, giving a contribution of $20 a unit and $16,000,000 in total. Deregulation opens the market to new suppliers. Management expects the average price to fall 6% to $47, cutting contribution per unit to $17, while the larger addressable market lifts volume 12% to 896,000 units. New total contribution = 896,000 x $17 = $15,232,000, a fall of $16,000,000 - $15,232,000 = $768,000. Against that, dropping the old licensing and tariff-filing regime saves $1,500,000 of compliance cost. Net effect = $1,500,000 - $768,000 = a gain of $732,000. The result is fragile, though: if volume rose only 5% to 840,000 units, contribution would be 840,000 x $17 = $14,280,000, a fall of $1,720,000 that outweighs the saving and leaves the business $220,000 worse off.

Case study

Seen in the real world.

Halcyon Air is an illustrative and clearly fictional regional airline used to show how deregulation reshapes an incumbent. It had operated eight protected routes for two decades, with fares set by a regulator and no competition permitted, and its planning process assumed both would continue indefinitely.

When route allocation was opened up, two low-cost carriers entered its three busiest routes within a year, and average fares on those routes fell by roughly a fifth. Halcyon's compliance and filing costs dropped meaningfully, but that saving was a small fraction of the lost revenue on the routes that had funded everything else.

The management team responded by retiring two ageing aircraft types to cut maintenance complexity, moving to a single fleet, and redeploying capacity onto thinner routes where the low-cost operators had no interest in competing. The fictional airline survived by accepting quickly that its old economics were gone, which is precisely what the incumbents that fail tend to spend two years refusing to do.

Watch out

Common mistakes.

  • Assuming deregulation is automatically good for existing operators because compliance costs fall, when the loss of pricing power almost always outweighs the administrative saving.
  • Treating deregulation as permanent, when regulators frequently return with targeted rules after the first serious failure in the newly opened market.
  • Forecasting the volume upside from a bigger market while forgetting that competitors are chasing exactly the same customers with exactly the same plan.

Questions

People also ask.

Is deregulation the same as privatisation?

No; privatisation transfers ownership from the state to private hands, while deregulation removes rules and can happen with or without a change of ownership.

Does deregulation always reduce prices?

Usually in dense, contested segments, but prices can rise in thin markets where competition never arrives and cross-subsidies that once supported them disappear.

How should a business prepare for it?

Model the price and volume effects separately from the cost saving, identify which customers a new entrant would target first, and start reducing cost before the competition arrives rather than after.

Was this explanation helpful?

From the founder's library

Accounting Fundamentals: A Non-Finance Manager's Guide to Finance and Accounting, by Shihan Sheriff

Take it further with the book.

Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.

US$2.24US$2.99

25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.

View the book and save 25%
Last updated · October 8, 2026
Browse all terms →

Disclaimer

The information provided in this finance dictionary is for educational and informational purposes only. It should not be construed as financial, investment, legal, or tax advice. Always consult with a qualified professional before making any financial decisions. Money Master HQ makes no representations or warranties about the accuracy, completeness, or suitability of this information. Use of this content is at your own risk.