Never Split the Difference: Negotiating as if Your Life Depended on It

by Chris Voss

“So you’re okay with me killing your son, Mr. Voss?” “I’m sorry, Robert, how do I know he’s even alive?” I said, using an apology and his first name, seeding more warmth into the interaction in order to complicate his gambit to bulldoze me. “I really am sorry, but how can I get you any money right now, much less one million dollars, if I don’t even know he’s alive?” It was quite a sight to see such a brilliant man flustered by what must have seemed unsophisticated foolishness. On the contrary, though, my move was anything but foolish. I was employing what had become one of the FBI’s most potent negotiating tools: the open-ended question. Today, after some years evolving these tactics for the private sector in my consultancy, The Black Swan Group, we call this tactic calibrated questions: queries that the other side can respond to but that have no fixed answers. It buys you time. It gives your counterpart the illusion of control—they are the one with the answers and power after all—and it does all that without giving them any idea of how constrained they are by it. Mnookin, predictably, started fumbling because the frame of the conversation had shifted from how I’d respond to the threat of my son’s murder to how the professor would deal with the logistical issues involved in getting the money. How he would solve my problems. To every threat and demand he made, I continued to ask how I was supposed to pay him and how was I supposed to know that my son was alive.