Difficult and lengthy negotiations result, for example, from not knowing the fair value, not understanding the aspects that are important for the other side, and both sides possibly feeling disadvantaged. This often means that trust is increasingly lost, it is difficult or impossible to come to an agreement and the partnership suffers.

The fact is that there is almost always a mutually satisfactory compromise. However, both partners have minimum requirements that must be met. There are also areas where you can be flexible and make concessions. Of course, none of this is known to the other side, resulting in a complex structure of unknowns. 

Resolving this and finding compromises is resource-intensive on one hand, and on the other hand you are very likely to be unsure whether you have really achieved the best possible result. In addition, a lot of partnership trust may be lost.