Public sector
Logic model
A chain from inputs to activities, outputs, outcomes and impact that shows how a program is meant to work.
Last reviewedWhat does Logic model mean?
A logic model sets out, step by step, how a program is expected to create change: inputs (money, staff), activities (what the program does), outputs (what it directly produces, such as people trained), outcomes (changes for people, such as jobs found) and impact (long-term change, such as lower unemployment). Governments, donors and non-profits use it to plan programs and decide what to measure, and it is a close cousin of a theory of change. The W.K. Kellogg Foundation's Logic Model Development Guide is a widely used reference. Example: a job training program spends 2 million (input) to run courses (activity) for 1,000 people (output), and 600 of them find jobs within six months (outcome), a cost of about 3,333 per job found. Counting only outputs can make a weak program look busy.
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Related terms
- AdditionalityThe part of an outcome that would not have happened without the program or investment.
- Issue treeA branching diagram that breaks a problem into smaller parts.
- Driver treeAn issue tree built from the numbers that drive an outcome.
- Public-private partnership (PPP)A long-term contract in which a private company builds, finances or runs public infrastructure or services.
- Availability paymentA regular payment from government to a PPP partner for keeping an asset open and up to standard.