when discussing the range of debate between seller and buyer during Negotiation process, it is easy to describe this area of options with graphic illustration.
Type A
The area of the negotiation is based on the highest price the buyer can pay vs. the lowest price the seller can sell
Type B
When both sides increases their demands, the area of negotiation is shrinking
Failure to negotiate
When both sides provides out of boundaries demands, the area is not feasible for negotiation
Type C, cost and Lead Time
When a Lead Time factor is added to the negotiation table, the area of negotiation is limited between two axis, cost and Lead Time
Type D, Cost and Lead time with high coloration
When Lead Time and cost are two factors which connected with high coloration relationship, the area of negotiation becomes a trapezoid