negotiation ability; bargaining power
Refers to the skill or leverage one has in negotiations, whether in business, politics, or everyday situations.
He has strong negotiation skills, so he always gets good terms.
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).