noun
negotiation ability; bargaining power
Refers to the skill or leverage one has in negotiations, whether in business, politics, or everyday situations.
彼は交渉力が高いので、いつも良い条件を引き出す。
He has strong negotiation skills, so he always gets good terms.
この契約では、相手の方が交渉力が上だ。
In this contract, the other party has more bargaining power.
折衝力 is a similar term for negotiation skills, but 交渉力 is more common and broader in scope.
Compound of 交渉 (negotiation) and 力 (power, ability).