
Professors David A. Lax and James K. Sebenius, who are involved in the Harvard University Negotiation Project, in their book 3-D Negotiation. Powerful Tools to Change the Game in Your Most Important Deals offer new perspectives when it comes to conducting negotiations.
According to this approach, negotiations should be understood as three-dimensional, with three elements occurring more or less simultaneously throughout the actual negotiation. These dimensions are: a) Tactics, which involve persuasive manoeuvres and give-and-take. It is worth noting that poor tactics can ruin a negotiation; b) Deal design: beyond the obvious, this involves uncovering the parties’ true economic and non-economic interests; and c) Setup: off the table, which shapes and reshapes the situation.
Below, we will examine the topic of exploring interests from the perspective of the Minerva Strategy Blog.
Lax and Sebenius begin by defining interest as “whatever you care about that is potentially at stake in the outcome.” Their entire approach is based on the observation that the interests stated at the negotiating table are one thing, whereas the parties’ actual or implicit interests are quite another, whether or not these have been clearly articulated.
When exploring these interests (whether explicit or implicit) in the handling of information about the other party, it is essential to practice, at various stages of the negotiation process, the exercise of putting oneself in the other person’s shoes. It’s also vital for oneself or the negotiating team to calmly assess the true interests at stake: what one wants from the negotiation, what could be gained, and what could be lost. In the standard terminology of Negotiation Theory, what is the best alternative to a no-deal outcome (BATNA), and how is the Zone of Possible Agreement (ZOPA) established between the parties?
However, Lax and Sebenius’s emphasis on the importance of (actual) interests within the framework of three-dimensional negotiation highlights the fact that focusing all one’s attention in negotiations on linear distributive dimensions—such as price negotiation—can cause one to lose sight of a range of potentially richer interests.
From this perspective, analysing BATNA and ZOPA can be useful tools, but not by focusing on a single variable; rather, by taking into account all the factors at play within the negotiating context.
In many negotiations, relationships are a key factor to bear in mind. Sometimes, emotions guide the parties’ behaviour, and such feelings can distort certain expectations. On other occasions, poor or mediocre results are accepted simply to maintain the relationship. On this point, Lax and Sebenius distinguish between countries that focus on relationships—such as those in Southern Europe and Latin America—and others that focus on results, such as Anglo-Saxon and Northern European countries.
Another factor to bear in mind is the social contract; beyond its strictly economic dimension, this governs people’s expectations regarding the nature, scope and duration of the agreement, the process to be followed, and the way in which unforeseen events are handled. As Lax and Sebenius state, it is “the spirit of the agreement.” It is important to clearly understand this broad framework to avoid conflicts or to resolve them without too much difficulty. It is about establishing relationships within a framework of trust, within the framework of a shared negotiating culture, where the obligations of the parties and the usual way of resolving potential conflicts are clearly established.
The third factor is the process itself. Certain negotiation processes often influence the outcome, and sometimes negotiators employ tricks and tactics, such as anchoring. These tactics can be particularly detrimental to one of the parties, who must be able to identify them and defend their position, especially when they are unaware of these strategies or lack experience in negotiation scenarios. Another important point is to distinguish the negotiating table from the wider negotiating context. It is usually easier to make progress in negotiations in informal settings.
Finally, one factor to bear in mind is ethics. Certain aspects of some negotiations may be morally controversial; for example, some negotiating tactics that involve withholding or manipulating information from the other party. From an ethical standpoint, the response will differ between the deontological model, with its duty to always tell the truth; the consequentialist model, which advocates the greatest happiness for the greatest number of people; the Machiavellian model, focused on success; and the virtuous model, which proposes acting as a virtuous person would in that situation.
Lax and Sebenius argue that we should not confuse negotiating positions with a broader set of actual interests, and they propose four practices that will help you safeguard your interests:
–Ask, listen and probe
Information about the other party’s interests is essential. The best way to get this is to listen carefully and gauge how they might respond to the negotiation map’s options.
–Use public sources to map interests
When important decisions need to be made, it is advisable to consult public records and the relevant institutions to gather objective information. Having reports from independent bodies and other credible sources of information is also beneficial.
–Tap internal sources
Naturally, if you can obtain firsthand information from someone who understands the other party’s interests, this can be particularly useful. It is also important to have information about the negotiator and the people involved, as well as their explicit, implicit and underlying interests.
–Tap knowledgeable advisers
In complex business situations, people often turn to professionals such as lawyers or intermediaries. Lax and Sebenius recommend asking them about their experience in such situations. Perhaps this is because – as Aristotle pointed out many centuries ago – experience can help one to better understand a particular situation.






