Just a link for your reading:
Each side’s leverage during a negotiation is the principal, compelling component determining how the exchange will turn out. Leverage is power. Whoever has the most… wins.
Here are some primary questions you must ask yourself when you
are negotiating: “Who has the superior bargaining position? Why is it
superior?”
The next question you must ask is, “How and when can you use your
leverage to your foremost advantage?” Timing and technique matter.
Ok, you’ve asked the above questions. Now, as you analyze your
situation, realize that everything the opposing person wants or needs
for agreement is to your advantage (as long as you understand their
reasons). On the other hand, everything you need or desire for an
agreement adds to the other side's leverage (also only if they
comprehend your reasons).
Hopefully your preparation has given you as much information as
you need to be a strong negotiator. As you negotiate, new information
will come up that will help you understand where the other person is
coming from.
Here is a key point - as much as possible, make sure you don’t
give too much information to the other side. Try not to contribute any
knowledge that would grant them superior power. This is not easy, but
the better you do it, the better your leverage during a negotiation.
You have to evaluate your leverage over and over again as well as
the leverage the other person is showing you. Why? Because as talks
move forward, events, positions, and attitudes change.
More than likely, your adversary is also performing the same
calculations. It's very much like a chess match. Each advance changes
the posture of the game. The correct moves at the proper time can
threaten your contestant's king. So you should deliberate many times on
how and when to use your leverage during a negotiation to achieve
dominance.
If you fail to stay updated and informed as the process unfolds,
you may not maintain any advantage. As an example, if you require an
emergency appendectomy the doctor and the hospital obviously has the
advantage and the most leverage. You're are not in the position to
negotiate the cost of the operation while you're rolling on a gurney to
the operating room. However should the opportunity to purchase a
corporation whose stock value has just taken a fall, your leverage
increases because the other person is dramatically weaker and in need.
Here’s another factor: It's not entirely the scrutiny of powerful
positions that creates leverage. It's also how that force is handled.
You can use it subtly or with a hammer. You can apply it when
circumstances are proper and when you are at your best, or use it at the
improper time and destroy your superiority.
Finally, analyzing leverage is a delicate game. You can conclude a
lot from the existing information of circumstances, but in reality,
perceptions also play a part. Wars are sometimes won not by the armies
you keep, but the armies they believe you maintain. There’s a big
difference there. And again, your rival will do the exact same thing.
Here are two important questions to ask yourself continually: Who
needs it more? Who has the greater motivation? If you determine the
other side's needs are greater than its wants, you have the advantage.
Gaining greater leverage as the negotiation moves forward is not
easy, but if you fail here, chances are you won't get as much out of
life as you desire. The more you work on this, the better you develop
your negotiating skills, the more you'll get.