Development institutions increasingly speak the language of mobilisation.
The logic is compelling. Public development resources are limited, investment needs are much larger, and private capital has to play a greater role.
But this can create a misleading starting point.
The objective of development finance is not to mobilise the greatest possible volume of private capital. It is to determine where public intervention can change an investment outcome in ways that advance a development objective.
Those are not necessarily the same thing.
A guarantee can unlock an investment that would otherwise be considered too risky. Concessional finance can improve affordability or extend maturities. Blended structures can attract lenders into unfamiliar sectors or markets. Public finance can absorb risks that individual investors are poorly placed to manage.
But every financing structure implicitly answers another question: why was the investment not happening already?
That diagnosis should come first.
The barrier may be political risk, foreign-exchange exposure, project preparation, regulation, insufficient revenue, limited market information, weak institutional capacity or the absence of credible projects. Different constraints require different responses.
Diagnosis before instrument selection
- Regulation
If the problem is regulation, a guarantee may achieve little.
- Project preparation
If the problem is weak project preparation, concessional capital alone will not create a pipeline.
- Financial return
If the underlying activity cannot generate an adequate financial return, attempts to engineer commercial finance into the project may simply move risk onto the public sector.
- Commercial counterfactual
And where an investment would have proceeded commercially anyway, public subsidy may add very little.
This is why I approach development financing as a problem of diagnosis and architecture rather than instrument selection.
The relevant question is not “could we use blended finance here?” It is “what prevents this development priority from attracting the financing it needs, and what is the least distortive intervention capable of changing that?”
Sometimes the answer will be a guarantee.
Sometimes it will be concessional lending, sovereign finance or a public-private partnership.
Elsewhere it may be grant finance, regulatory reform, project preparation, institutional strengthening or improvements to public investment management.
Often the financing solution sits across several of these.
This becomes particularly important as development institutions seek greater private-sector participation. Commercial capital does not distribute itself according to development need. It tends towards stronger markets, clearer revenue models and risks that can be priced.
The role of development finance is therefore not simply to follow markets. It is to understand where markets can contribute, where they need to be shaped and where public or concessional finance remains indispensable.
Application to assignments
My work across Development Finance Assessments, Integrated National Financing Frameworks, investment strategies, MDB operations and European blended-finance architecture has repeatedly involved this broader question.
For clients, that perspective helps move the discussion beyond financing instruments towards something more useful: what combination of finance, policy and institutional change is actually capable of moving an investment forward?