Suzy wants to buy the bike and equipment for $400 and can`t go any higher. Dave and Suzy did not reach ZOPA; they are in a negative negotiating zone. If the negotiating parties cannot reach the ZOPA, they are in a negative negotiating zone. An agreement cannot be reached in a negative negotiating area, as the needs and wishes of all parties cannot be satisfied by an agreement reached in these circumstances. Trading strategies for a large company negotiation mean: Prepare carefully. One of the most fundamental mistakes you can make when negotiating is to arrive at negotiations without proper preparation, set clear goals, define your BATNA, understand how the other party works, choose when and negotiate, know what you want to negotiate and get everything in writing. .