What is the real effectiveness of a negotiator?

A successful negotiation requires the two parties to come together and hammer out an agreement that is acceptable to both.;

Problem Analysis, Preparation, Active Listening,Emotional Control, Verbal Communication, Collaboration and Teamwork,Problem Solving,Decision Making Ability,Interpersonal Skills,  and Ethics and Reliability .

It is the art of getting what you want in a fair manner. Understanding the other side's needs is key in receiving what you want.

Injecting  the Trust building ingredient for first time and perform on it over a period of time.

working on win -win situation through understanding the others side needs