The phrase "bargaining tool" refers to an object, action, or information that someone uses to their advantage while negotiating to achieve a desired outcome. Full definition
The major chains often charge suppliers fees for better placement on shelves, or use allocation of shelf space for branded and private label products as bargaining tools. (afr.com)
A good credit score can help you get a lower origination fee, and an excellent credit score can be an even better bargaining tool in your negotiations. (rismedia.com)
Employers also find that pay transparency can remove an important bargaining tool when they want to offer good candidates higher wages than others employees in the same jobs. (inc.com)