The term coalition is from the 1610s, "the growing together of parts," from French coalition (1540s), from Late Latin coalitus "fellowship," originally past participle of Latin coalescere "unite, grow together, become one in growth."
A coalition in negotiations is a temporary union between two or more individuals or groups for a common aim or goal. Coalitions are a common practice utilized in multi-party negotiations to gain advantage in the negotiation. Coalitions are more common when negotiators’ stand to gain more through collaboration than through competing. A few problems with coalitions in negotiations are size, trust, temptation, and dividing the pie. Collaborators also compete.
Grow together in parts, unite for a stronger stance, practice fellowship