Positional bargaining runs on pressure, while effective negotiators run on principles. Even when it seems favorable, “yield[ing] to pressure” ultimately sets a precedent for addressing disagreements through positional bargaining, and so it is usually counterproductive in the long term. Just as it is possible to divert conversation from positions to principles by asking
why the other side holds its positions, it is possible to start searching for objective criteria by asking
why the other side wants to resolve a certain disagreement in a particular way.