09/19/2025
β οΈ 5 Assumptions that Kill Negotiations - Common but risky assumptions to avoid making about the other party in a negotiation.
π« Assuming Their Priorities Match Yours
Itβs easy to believe the other side values the same things you do (for example price, speed, control). In reality, they may care more about stability, reputation, timing of the closing, or non-monetary terms such as proximity to another business. Misreading priorities can cause you to push on the wrong levers.
π« Assuming They Have Full Authority
Not everyone at the table can finalize a deal. Assuming your counterpart has full decision-making power can waste time, create frustration, or lead to concessions that donβt stick if they must get approval from higher-ups.
π« Assuming They Are Fully Informed
The other party may not know all the details, market context, or even their own best alternatives (BATNA). If you assume theyβre as informed as you are, you may skip clarifying explanations or miss opportunities to strengthen your position.
π« Assuming They Will Behave Rationally
Negotiations often involve emotionsβego, fear, pride, or pressure. Expecting purely rational behavior can cause you to misjudge reactions or overlook the importance of building trust and managing tone. (More on this from my Negotiation Skills - Pt 1 post in comments)
π« Assuming Their First Offer Reflects Their Bottom Line
Many negotiators open with positions far from what theyβll accept. If you assume their first ask is final, you may walk away too earlyβor give up too much without testing their flexibility.