Reference · Cheat Sheet 10
Bargaining & BATNA
Your power in a deal is your BATNA — your best alternative to agreeing. Improve it and you improve everything.
The prep routine (do this before any negotiation)
- Define your BATNA & reservation value. What do you get if talks collapse? That is your floor. Know it before you open your mouth — without it you have no walk-away point.
- Estimate theirs. What is their best alternative? That is the upper bound of what they'd rationally pay (or accept). This defines the ceiling of the zone.
- Map the ZOPA. Does your floor sit below their ceiling? If yes, a deal can exist. The gap between them is the surplus to divide.
- Plan your anchor & concessions. Open with a credible, well-justified number above your target. Concede in decreasing increments to signal you're approaching your limit.
- Strengthen your BATNA before you talk. Every improvement to your outside option raises your reservation value, raises your credibility, and reduces the other side's ability to claim surplus.
Worked example — skull-base course sponsorship
The numbers
- Your floor (reservation value): R$10,000 — another sponsor has offered this (your BATNA).
- Their ceiling (reservation value): R$25,000 — sponsoring a rival conference costs them this (their BATNA).
- ZOPA: R$10,000 to R$25,000 — any price here beats both sides' outside options.
- Surplus: R$15,000 — this is what the negotiation is dividing.
R$0
R$10k (your floor)
R$25k (their ceiling)
R$40k
← ZOPA / surplus R$15k →
If you secure a second sponsor at R$15k, your BATNA rises and so does your floor — the ZOPA narrows but you now claim a larger share of whatever remains.
Five levers that move price within the ZOPA
- BATNA strength: improve your outside option → your floor rises → you capture more surplus. The most powerful lever.
- Patience / cost of delay: the side that can wait longer without loss captures a larger share. Avoid artificial deadlines on your side.
- Anchoring: a credible, well-justified first offer pulls settlement toward it. Open above your target; let them move you down in decreasing steps.
- Information: hide your floor, probe theirs. Open questions about their budget cycles and alternatives are more valuable than price arguments.
- Commitment: a believable "best and final" claim can lock in a better position — but only works if you can credibly walk away. Bluffing it destroys deals and reputations.
Key terms
- BATNA
- Best Alternative To a Negotiated Agreement — what you get if talks fail entirely.
- Reservation value
- Your walk-away price — set by your BATNA, rises when your BATNA improves.
- ZOPA
- Zone Of Possible Agreement — the range where a deal beats both sides' outside options.
- Surplus
- Width of the ZOPA — the value being divided. Total surplus doesn't change; negotiation only allocates it.
- Anchoring
- Setting a reference point early that pulls the final settlement toward it.
- Cost of delay
- What each party loses per unit of time without agreement. Lower cost = more patience = more power.
What weakens you: revealing your reservation value, signalling urgency or need, dropping your price first without getting anything in return, or making a commitment you can't credibly keep. Any of these hands the other side's extractors a map to your floor.