Impact tells you what a project would do to the local economy. Viability tells you whether to do it. They are different questions, and confusing them is expensive.
A project can generate an impressive economic impact and still be a bad decision. The two facts sit together more often than most people expect, and the reason is that impact and viability answer completely different questions.
Impact asks what a project would do to the surrounding economy: the jobs, spending, and tax revenue it sets in motion. Viability asks whether the project itself holds up: whether it earns enough to cover its costs, service its debt, and justify the capital it consumes. A study that reports a large impact and stops there has answered the first question and left the second one dangerously open.
Impact numbers are persuasive, and they are often commissioned precisely because they are persuasive. A developer seeking a subsidy, an agency seeking approval, or a board weighing a proposal all find a large impact figure reassuring. But the figure describes economic activity, not financial soundness. A project that throws off substantial local activity while quietly failing to cover its own debt will show a strong impact number right up until it stops operating.
A real feasibility read runs the finance a lender runs. It looks at whether projected revenue covers operating costs and debt service, with a margin, across the range of conditions the project might face rather than the single best case. The most useful single measure is debt-service coverage against the floor a bank uses, because that is the exact test the project will meet when it goes for financing. If it fails there, the size of the impact is beside the point.
Impact and viability are complementary, and a decision needs both on the table. Impact tells the public and the funders what the project returns to the community. Viability tells the owner and the lender whether it will survive to deliver that return. A study that gives you one without the other is giving you half of what a decision requires.
When someone presents an impact study to support a go decision, ask the plain follow-up: does this also show that the project can pay for itself, and under what assumptions. If the answer is that impact and viability were assessed separately and both hold, you have grounds to proceed. If the answer is that the impact was large so the project must be sound, you have been handed a number, not a decision.
Project Red Team runs this kind of analysis for governments, developers, and businesses across the interior West. Tell us about the project and we will lay out what it takes to answer it, and what it costs.
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