Write contingent contracts when forecasts disagree

If you and the other side have different predictions, let the outcome decide who was right.

Why it works

Negotiators often deadlock because each side genuinely believes the world will unfold in their favor. A contingent contract converts that disagreement into a bet: if my prediction is right, the terms tilt my way; if yours is right, they tilt yours. It resolves the impasse without either side having to abandon their belief, and aligns incentives with performance.

How to do it

1. Identify where the disagreement is factual rather than values-based (“we think sales will hit X; you think Y”).
2. Propose a deal where the terms adjust based on the actual outcome.
3. Make the contingency measurable, time-bound, and agreed by a neutral arbiter if needed.
4. Write the trigger conditions and consequences explicitly before signing.

Evidence

Contingent contracts are a well-documented integrative tool in the negotiation literature. Bazerman and Gillespie’s work in Harvard Business Review outlines their use and common conditions under which they add joint value. (mechanistic)

Contingent contracts require that the outcome be observable and verifiable by both parties; they fail when the contingency is ambiguous or one party can game the measure.

Sources

• Bazerman & Gillespie (1999), Betting on the future: the virtues of contingent contracts, Harvard Business Review

Common mistake

Using a contingent contract to obscure rather than resolve a disagreement — drafting vague triggers to get a signature, which guarantees a dispute when the contingency fires.