Negotiation is fundamentally a process of communication between two or more parties aimed at reaching an agreement on matters of mutual interest, particularly when preferences or goals differ. It involves discussion, compromise, and strategic decision-making, and nearly every important decision in business and life involves some form of negotiation. The study of negotiation has produced several foundational concepts that serve as the building blocks for every other technique and tactic in the field.
Perhaps the most important of these concepts is the BATNA, or Best Alternative To a Negotiated Agreement, which is the most favorable course of action available to you if negotiations fail. Knowing your BATNA is crucial because it sets your walk-away point and prevents you from accepting deals that are worse than your alternative; a strong BATNA gives you leverage, confidence, and a benchmark against which to evaluate any proposed agreement. To strengthen your BATNA, you should develop multiple alternatives in advance, research other options thoroughly, and improve your position independently until your alternatives are concrete and actionable. The complementary concept of WATNA, or Worst Alternative To a Negotiated Agreement, describes your worst-case scenario, helps you assess risk, and motivates you to keep negotiating rather than walk away into a bad outcome.
Closely related is the ZOPA, or Zone of Possible Agreement, which is the range between each party's walk-away point (their reservation price) in which an agreement can satisfy both sides. For a buyer, the reservation price is the maximum they will pay; for a seller, it is the minimum they will accept. To identify the ZOPA, you must first determine your own reservation price, then estimate the other party's reservation price through research and questioning, and find the overlap. If your maximum price exceeds their minimum (or vice versa), a ZOPA exists; if not, no deal is possible without changing terms. Above this lies your aspiration point, your ideal best-case outcome, and research consistently shows that negotiators with higher aspiration points achieve better results, so it pays to set ambitious but realistic aspirations and work backward from there.