Governments love a good return on investment narrative. It satisfies taxpayers, quietens critics, and makes bureaucrats look like hedge fund wizards. When Hong Kong’s investment leadership proudly announces that every single dollar deployed brings back more than eight dollars, the crowd applauds. It sounds spectacular.
It is also an illusion.
The math behind these massive public-private multiplier claims is fundamentally flawed. By celebrating an arbitrary 8x metric, officials are masking the real cost of capital, ignoring displacement effects, and substituting easy vanity metrics for genuine economic productivity. I have watched sovereign funds and municipal development vehicles pull these accounting tricks for two decades. They always end the same way: with a portfolio of vanity projects that look great on a slide deck but leave the actual economy sluggish.
True economic growth cannot be simulated by public balance sheets playing a game of attribution gymnastics. Here is how the illusion is constructed, and why the reality is far more sobering.
The Mirage of the Co-Investment Multiplier
The core fallacy rests on a misunderstanding of what that "eight dollars" actually represents. When a state-backed fund claims an 8:1 return, they are rarely stating that they turned $1 million of taxpayer cash into $8 million of liquid profit. Instead, they are usually talking about a co-investment ratio.
Imagine a scenario where a government fund injects $10 million into a major technology park or a new logistics hub. To get the project off the ground, private equity firms, real estate developers, and commercial banks contribute another $70 million. The government then plant their flag in the dirt and announce they have "unlocked" an 8x multiplier.
This calculation ignores a brutal truth: much of that private capital would have been deployed anyway.
Capital is not a passive liquid waiting for a bureaucrat to give it permission to move. High-quality projects attract funding because they offer strong, risk-adjusted returns. When a state fund steps in, it often crowds out private lenders who were already circling the deal. Or worse, it subsidizes risk for private players who reap the upside while the taxpayer shoulders the downside. Claiming credit for the entire capital stack is the financial equivalent of a bystander jumping to the front of a marathon right before the finish line and claiming they won the race.
The Hidden Taxpayer Subsidy
To accurately calculate the return on any investment, you must factor in the total cost of deployment. Public funds do not operate in a vacuum. They rely on infrastructure, tax concessions, fast-tracked regulatory approvals, and land grants.
When a government entity brags about a high multiplier on a specific investment vehicle, they conveniently leave these auxiliary costs off the ledger. If a sovereign wealth vehicle invests a dollar, but the city had to zone premium land at a discount, build dedicated transit links, and offer ten years of corporate tax holidays to attract the co-investors, the real ratio collapses.
The true equation looks less like an efficient engine and more like an expensive wealth transfer. The public takes a concentrated risk, while the broader ecosystem pays for the hidden scaffolding holding the project up.
The Crowding Out Effect No One Admits
Every dollar steered by a centralized committee into a preferred sector is a dollar stripped from the organic, decentralized market. This is the classic broken window fallacy applied to macro-finance. We see the shiny new stadium or the subsidized biotech lab funded by the state's strategic vehicle. We do not see the hundred mid-sized logistics firms, retail tech startups, or independent asset managers that struggled to find funding because capital migrated toward the state-sanctioned honey pot.
Private capital follows government signals not always because the underlying economics are brilliant, but because the government has artificially lowered the risk of failure for that specific bet. This distorts the market. It creates an artificial boom in trendy, politically expedient sectors while starving the boring, highly profitable industries that actually form the backbone of a resilient financial hub.
Redefining the Metric of Success
If the 8:1 multiplier is a vanity metric, what should we actually be measuring?
Instead of tracking total capital assembled, economic stewards must focus on structural productivity gains and genuine net new value creation. A successful public investment should pass three strict tests:
- Additionality: Would this project exist without state intervention? If the answer is yes, the government has no business funding it.
- Unsubsidized Velocity: Does the project generate velocity in the broader economy without requiring ongoing regulatory favors or infrastructure handouts?
- Risk-Adjusted Sovereign Return: Does the cash return to the fiscal reserve outpace a simple, passive global index fund after accounting for inflation and currency risk?
If an investment chief cannot prove these three points, their multiplier is just public relations.
Relying on inflated accounting metrics creates a dangerous feedback loop. It convinces leadership that their interventionist strategies are flawless, leading to bigger bets, larger interventions, and deeper market distortions. The world's most dynamic financial centers were built on predictable regulations, low friction, and open markets—not on state funds pretending to be venture capitalists.
Stop celebrating the magic multiplier. Start looking at the structural drag left in its wake.
