CONCEPT
Rules-in-Form vs. Rules-in-Use
Ostrom's analytical distinction between the rules formally written in institutional documents and the rules actually followed in practice — the gap between the two being one of the most reliable predictors of governance failure.
One of Ostrom's most important analytical tools is the distinction between rules-in-form (the rules formally written in constitutions, statutes, organizational policies, terms of service) and rules-in-use (the rules actually followed in daily practice). The gap between the two is structurally consequential. When formal rules are routinely violated without consequence, community members lose confidence in the governance framework and adjust their behavior accordingly. The legitimacy of the entire system erodes.
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The distinction cuts against the common assumption that governance is a matter of having the right rules. The right rules, unenforced or unenforceable, produce worse governance than imperfect rules that actually function. Ostrom's empirical work consistently found that communities with simpler, imperfect rules that were genuinely followed outperformed communities with sophisticated rule systems that existed only on paper.
The rules-in-use concept is foundational to the Institutional Analysis and Development framework. Any analysis of institutional performance must examine not just what the