But cooperative negotiation is when both parties have the same information and the same goals but different constraints. Or they have the same information but different goals.
Then you work together to come up with a plan that meets both needs, but most likely each side must compromise a bit.
That is the negotiation skill that is most important in business, and that is not the skill used when negotiating salaries in most cases.
Although as it turns out my last salary negotiation was in fact a cooperative negotiation, where I made an offer and was then told I asked too low and they offered me more than I asked for.
Telling the person you're negotiating with that they are just being confrontational is simple passive aggression.
After reading GTY, I recommend DeMesquita and Pfeffer, then, go back to Cialdini through a modern lens.
Weird.
Of course, if you are at some crappy, hollowed out and debt laden behemoth solving for cost optimization instead of growth, then it's already a race to the bottom and it doesn't matter.
To clarify, there was no confusion.
When someone says, "take it or leave it," it's bullying. When someone says, "we're paying you this because this is what everyone else gets and that's fair because I'm telling you it is," that's also bullying.
A negotiated price is a function of the true price at which parties arrive at a deal. How do you deal with liars? Find options that yield information about their intent. This is the real art. It's finding information oracles about their position independent of what they present. Some people are simple, most aren't.
In this sense, negotiation is the pursuit of truth.