Distinguish substantive, procedural, and psychological interests

The interest behind a position is often not about the money or the terms — it may be about face, fairness, or control.

Why it works

Fisher and Ury categorize interests as substantive (money, outcomes), procedural (how the decision is made), or psychological (respect, recognition, safety). A counterpart who seems stuck on terms may actually be protecting a psychological interest: they need to feel heard, respected, or in control of the process. Addressing the psychological interest can unlock the substantive negotiation more effectively than any concession on terms.

How to do it

1. When a negotiation stalls without apparent substantive reason, ask: is there a process concern? "Do you want more input into how we’re making this decision?"
2. Ask: is there a psychological concern? "It sounds like this matters beyond the specific terms — am I reading that right?"
3. Offer procedural concessions (more input, more time, more information) when they cost you little and resolve what is blocking substantive progress.

Evidence

Research on procedural and distributive fairness shows that people accept worse substantive outcomes when the process is fair and their dignity is respected. Psychological interests are a real driver of impasse. (observational)

Focusing only on psychological interests can be used to avoid substantive concessions — the psychological and substantive interests are both real and both need addressing.

Sources

• Lind & Tyler (1988), The Social Psychology of Procedural Justice
• Folger & Cropanzano (1998), Organizational Justice and Human Resource Management

Common mistake

Offering more money when the actual blockage is procedural or psychological — the substantive concession fails because it addresses the wrong interest.