Common Myths and Misconceptions About PPPs

Few public policy tools attract as many myths as public-private partnerships. Supporters sometimes present PPPs as free money for infrastructure; critics describe them as privatisation by the back door. Both views miss the point. A PPP is a procurement method with specific strengths and weaknesses, and it delivers value only when it is used for the right projects in the right way.

This article tackles ten common PPP myths and misconceptions, drawing on the 2026 APMG PPP Certification Guide and the evidence it summarises.

Myth 1: "PPPs are free money for government"

Reality: Someone always pays. PPPs bring in private financing upfront, but the funding to repay it comes from users through charges or from taxpayers through government payments. A PPP changes the timing of payments and who bears the risks; it does not make infrastructure free. The distinction between funding and financing is fundamental.

Myth 2: "PPPs are privatisation"

Reality: Privatisation permanently transfers ownership of an asset and responsibility for the service to the private sector. In a PPP, government remains a partner, specifies the service, monitors performance and usually gets the asset back at the end of the contract. Under the Guide's definition, PPPs are not privatisations.

Myth 3: "PPPs don't create public debt, so they don't affect public finances"

Reality: Depending on accounting rules, a government-pays PPP may not be recorded as public debt. But the Guide is clear that it still creates a long-term commitment of public payments, and often contingent liabilities, that affect the government's fiscal position. That is why many countries set legal limits on total PPP commitments. Using PPPs mainly to keep spending off the balance sheet is one of the worst reasons to choose them.

Myth 4: "PPPs are always more efficient"

Reality: PPPs can be more efficient, but not automatically. Evidence summarised in the Guide is encouraging: a University of Melbourne study for Australia's National PPP Forum (2008) found median cost overruns of 0.7% for 25 PPPs compared with 10.1% for 42 traditionally procured projects, and UK National Audit Office reviews found far fewer overruns on PFI projects than on earlier public projects. Yet the OECD's caution, repeated in the Guide, is that the procurement choice must be made project by project. A badly prepared PPP can be far less efficient than a well-run traditional project.

Myth 5: "PPPs are always more expensive"

Reality: Private finance usually costs more than government borrowing, and transaction costs are higher. But comparing only financing costs is misleading. PPPs can reduce construction overruns, delays and the long-term cost of poor maintenance. The right question is whether a PPP offers better value for money over the asset's whole life, not whether its interest rate is higher.

Myth 6: "Any contract with the private sector is a PPP"

Reality: Private involvement alone does not make a PPP. Design-build contracts, short-term maintenance contracts and design-build-finance arrangements are not PPPs under the Guide. A true PPP requires a long-term contract, bundled construction and management, significant risk transfer and performance-linked pay. These are the essential features of a PPP contract.

Myth 7: "In a PPP, the private sector takes all the risk"

Reality: Good PPPs transfer significant risk, but not all risk. Each risk should go to the party best able to manage it. Risks the private partner cannot control, such as many political, regulatory or land acquisition risks, are usually better kept or shared by government. Transferring too much risk makes bids expensive or projects unbankable, and can lead to renegotiation later.

Myth 8: "Once the contract is signed, government's job is done"

Reality: Signing is the beginning, not the end. Government must monitor performance, apply deductions, manage change, resolve disputes and plan for handback over 20 or 30 years. Many PPP problems arise not from the model but from weak contract management.

Myth 9: "PPPs are only for rich countries"

Reality: PPPs are used widely in emerging markets and developing economies, often with support from multilateral development banks. But the Guide recognises that these countries face particular challenges, including shallow financial markets, currency risk and limited institutional capacity, and need to adapt the PPP approach to their context.

Myth 10: "PPPs are only for big infrastructure like toll roads"

Reality: Toll roads are the best-known example, but PPPs are used for hospitals, schools, water and wastewater plants, power plants, government buildings, IT systems, bus services and more. They can also be used to manage existing assets and services. What matters is not the sector but whether the project suits the PPP model: significant scale, measurable outputs, transferable risks and a capable market.

Where the myths come from

Many myths reflect real experiences. Some early PPPs were used to avoid budget constraints, some suffered from optimistic demand forecasts, and some locked governments into inflexible contracts. Others were genuine successes. The lesson is not that PPPs are good or bad, but that their results depend on:

• choosing suitable projects;
• preparing them thoroughly;
• running competitive, transparent tenders;
• allocating risk sensibly;
• managing contracts actively for their whole life.

These conditions, and the disadvantages and pitfalls of PPPs when they are missing, are explored in more depth elsewhere in this knowledge base.

This article is part of our PPP Fundamentals: The Complete Guide to Public-Private Partnerships.

Key takeaways

• PPPs are not free money: users or taxpayers always fund them.
• PPPs are not privatisation: government remains a partner and the asset returns to public hands.
• Off-balance-sheet treatment does not remove long-term fiscal commitments.
• PPPs are neither always cheaper nor always more expensive; value for money must be tested project by project.
• Results depend on good project selection, preparation, risk allocation and contract management.

Go further

Want a structured grounding in these concepts? The CP3P Foundation course covers PPP definitions, models, the PPP process cycle and the essentials of project finance, aligned with the 2026 PPP Guide, and prepares you for the internationally recognised CP3P Foundation exam.

Related reading

• PPP Fundamentals: The Complete Guide to Public-Private Partnerships
• PPP vs Privatization: What Is the Difference?
• What Is a Public-Private Partnership (PPP)? A Complete Guide
• PPP Definitions Compared: World Bank, OECD, EU and IMF
• The Essential Features of a PPP Contract
• Disadvantages and Pitfalls of PPPs
• Common Mistakes in PPP Tendering

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