PPP Risk Allocation: Getting the Balance Right
In an earlier article, I set out the pros and cons of public-private partnerships. One theme ran through both sides of that discussion: risk. PPPs work — or fail — largely on how well risk is allocated between the public and private partners. Get it right, and both sides are motivated to deliver an efficient, high-quality project. Get it wrong, and you end up with inflated costs, disputes, or a project that never gets off the ground. So how should risk actually be allocated in a PPP?
The Golden Rule
The principle that underpins good risk allocation in PPPs is simple to state, if not always simple to apply: risk should sit with the party best placed to manage it. Not the party with the deepest pockets, and not the party pushing hardest to avoid it — the party with the greatest ability to control, mitigate or absorb that particular risk at the lowest cost.
Misallocating risk — dumping it on whichever party has the weaker negotiating position — tends to backfire. A private partner forced to accept risks it cannot control will price that uncertainty into its bid, driving up costs for the public body. Alternatively, if a risk is allocated to a party unable to manage it, it may materialise in ways nobody planned for.
The Main Categories of Risk
Most PPP risk falls into a handful of recognisable categories:
- Design and construction risk — cost overruns, delays, or defects in the asset being built. This usually sits well with the private partner, who has direct control over design choices and construction methods.
- Operational risk — the cost and performance of running the asset once built. Again, typically better managed by the private partner, whose remuneration is often tied to performance.
- Demand or revenue risk — the risk that usage (traffic, ridership, footfall) falls short of forecasts. This is more contentious: the private partner can influence quality of service, but broader economic and demographic factors are largely outside its control.
- Political and regulatory risk — changes in law, policy reversals, or shifts in government priorities. This sits more naturally with the public body, which is best placed to anticipate and manage political and regulatory change.
- Force majeure risk — genuinely unforeseeable events. These are usually shared, with the contract specifying relief mechanisms rather than allocating the risk wholly to one side.
Common Pitfalls in Risk Allocation
A few mistakes crop up repeatedly in PPP structuring:
- Over-transferring risk. Governments sometimes try to transfer as much risk as possible to the private partner on the assumption that this represents “value for money.” In practice, private partners price unmanageable risk heavily, and the public body ends up paying for risk transfer that delivers no real benefit.
- Under-appraising risk at the outset. If risks aren’t properly identified and quantified during the feasibility stage, they tend to resurface later as disputes or unplanned costs.
- Vague or incomplete contractual drafting. Risk allocation is only as good as the contract clauses that express it. Ambiguity over who bears a particular risk is a reliable source of disputes down the line.
- Ignoring the interaction between risks. Risks rarely exist in isolation — a delay risk and a financing risk, for example, can compound one another. Good risk allocation frameworks consider these interactions rather than treating each risk as standalone.
Practical Steps for Better Allocation
- Map the risks early, ideally at the feasibility study stage, before the structure of the partnership is fixed.
- Assess which party can genuinely control or influence each risk, rather than defaulting to standard templates from other projects.
- Price the risk realistically so that whichever party bears it is fairly compensated for doing so.
- Draft risk allocation clauses with precision, leaving as little room as possible for competing interpretations.
- Revisit the allocation periodically over the life of long-term contracts, since circumstances — and each party’s ability to manage a given risk — can change.
The Bottom Line
Risk allocation is not a box-ticking exercise; it is the mechanism that determines whether a PPP delivers genuine value or simply shifts costs around in disguise. The partnerships that succeed are the ones where risk allocation reflects who can actually manage each risk — and where the contract says so clearly enough that everyone knows where they stand.