CAPITAL INSIGHT
Wave 2 · Episode 08 · The Instrument Layer
The Mobilization Instrument:
How Capital Actually Travels the Corridor
How Capital Actually Travels the Corridor
The deployment gap is also a mechanics problem: the specific vehicle, structuring decisions and risk transfer tools that move capital from intent to a closed transaction.
Wasim Tahir, CFA
Senior Advisor, ODI Global
Former Research Fellow, Harvard Center for International Development
Former Research Fellow, Harvard Center for International Development
Host Ovidiu Bujorean
CEO · OviBees Ventures
CEO · OviBees Ventures
Private capital mobilization Originate-to-share Guarantee instruments Blended finance design Gulf-Africa corridor National development banks
Core Insight
Wave 2's third conversation moves from theme to mechanics. Randall Kempner showed the philanthropic engine that moves first; Michael Meehan showed the trust corridors that connect capital to opportunity. Wasim Tahir, who developed British International Investment's mobilization strategy, shows what actually travels those corridors: the specific instrument, and the structural decisions and cultural shifts required to build it. Mobilization, in Tahir's telling, comes down to origination-to-share replacing decades of buy-and-hold, concessional capital aimed at one named barrier instead of blended into a deal in the abstract, and guarantees built like scalpels, not blunt instruments.
"It's like you've got a quite spicy soup and you drop a bit of milk in to cool it down so more people can eat it. Everyone sort of benefits in some ways, but you can set up different pools of concessional capital to have different objectives, so they can be deployed only in certain types of transactions."
— Wasim Tahir, CFA · Senior Advisor, ODI Global · EP08
$30M
First-ever secondary loan sale executed by BII to an institutional investor, setting the precedent for every sell-down that followed.
Source: Wasim Tahir, on British International Investment (BII) · EP08 discussion
$750M
COVID-19 response package Tahir coordinated, deployed at speed into BII's markets when patient capital had to move fast.
Source: Wasim Tahir, on British International Investment (BII) · EP08
$500M
Gates Foundation and Qatar Fund for Development partnership blending catalytic capital into health, agriculture and education across Africa and South Asia.
Source: Wasim Tahir, citing the Gates Foundation-Qatar Fund partnership · EP08
Three things worth knowing from this conversation
1
Mobilization is a spectrum, not a checkbox.
Tahir's framework runs from grant capital, to DFI capital (impact first, returns second), to impact investing (returns first, impact second), to pure return-seeking capital. Only the last two segments constitute "private capital" in the strict sense DFIs report their mobilization against, which is why the definition matters before the number does.
2
Buy-and-hold to originate-to-share is cultural before it's structural.
BII held a stake in a Ugandan bank since the 1960s, so long that no one could reconstruct its book value when it finally sold. Shifting toward sell-downs, equity syndication and credit-risk insurance took years of stakeholder alignment and process change, not a strategy memo, and it changes the institution's own risk-adjusted return profile in the process.
3
Guarantees are scalpels, not blunt instruments.
Tailored by risk covered, quantum and payout terms, guarantees let DFIs unlock bank lending to underserved segments, like SMEs, that a DFI could never reach directly. The risk a DFI actually carries on these instruments is often small, and they generate steady fee income while doing it.
What is working
Originate-to-share, precedent set: BII's first secondary loan sale mobilized $30M and, more importantly, built the internal template and process for every sell-down since, recycling balance-sheet capital into new deals.
Guarantees unlocking segments DFIs can't reach: a DFI guarantees a portion of losses on a new lending segment, a bank starts underwriting SMEs it wouldn't otherwise touch, and the DFI earns fee income on realized risk that is often low.
South-South capital pathways forming: the Asian Infrastructure Investment Bank and borrower-led MDBs like the Africa Finance Corporation are gaining share as donor-based development flows decline.
What is not working
Incentives cut against origination-to-distribute: shorter-maturity, post-construction, de-risked assets carry better risk-adjusted returns than the assets DFIs are meant to sell down, so recycling capital fights the institution's own return math.
Concessional capital remains scarce relative to the private capital it needs to unlock, and country and political risk in the hardest markets still lacks a dedicated instrument.
Rapid Insights — Wasim Tahir's verbatim closing answers
| A blended finance structure actually works when it does this one specific thing… | "Basically changes the risk-return parameters so it's sufficiently attractive for a private investor." |
| DFIs are most effective at mobilizing private capital when… and least effective when… | "Most effective when they can have a demonstration effect, and least effective when they're chasing mitigation projects where private capital can already go into." |
| Too much development capital is going to… and not enough to… | "Climate finance, and not enough to development projects in low-income countries, because climate finance generates a global public good, and development projects generate a local one, from job creation, taxes and so on." |
| The instrument the field most urgently needs to build in the next three years is… | "I don't know, because I feel like there's a lot of innovation already, but I think sometimes the old stuff just works. Innovation for the sake of innovation is sometimes a bit artificial." |
| The Gulf-to-Africa capital corridor will move at scale when… | "The Iran war stops and the Gulf can continue investing in Africa, and the trend can continue." |
| A DFI is genuinely mobilizing private capital, not just investing alongside, when… | "It is actively and intentionally engaged with the institutional investor community." |
One implication for capital allocators
If you are a DFI, family office, or institutional investor structuring a cross-border transaction: the instrument is not generic. A guarantee, a secondary loan sale, or a blended vehicle works only when it is engineered against one named barrier, a maturity mismatch, a political risk period, an underserved lending segment, rather than blended into a deal in the abstract. The corridor gets capital to the table. The instrument is what gets it to close.
Wave 2 · Capital Series · The Instrument Layer
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ODI Global · Former Fellow, Harvard CID
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