ZOPA or scope can unanimously, is the area or level that there can appear an agreement both parties satisfaction. ZOPA exists at the intersection between the high and low limits, i.e. between the values accepted by the two parties. In case of no interference in the scope of the agreement, the two sides could-i.e. no ZOPA. No agreement would be achieved regardless of the how tactful negotiation, unless there are other value factors to weigh or if either party changes its acceptance rates. Here will lead to a different concept that is creating value through the exchange of
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