In every negotiation, the numbers and terms on the table are only part of the picture. Your counterpart’s stated position usually rests on deeper core interests that determine whether a deal feels like progress or a problem.
These interests often include both business pressures and personal ones. A buyer might need to hit a specific cost savings target to satisfy their leadership. A seller might be protecting a relationship with their own internal stakeholders. When you address the core interest instead of just the position, the conversation shifts from adversarial to collaborative.
Identifying Core Interests
The key is to ask questions that reveal what success looks like for them. Questions like “What would make this deal work well for your team?” or “What constraints are you working under right now?” can surface information that never appears in the initial email or call. Listen for mentions of internal deadlines, boss expectations, or competing priorities.
Using Core Interests in Your Approach
Once you have a sense of their core interests, frame your proposal around how it helps them meet those needs. If their interest is maintaining margin on a particular product line, a volume commitment or extended payment terms might deliver more value to them than a small price adjustment. This approach often leads to better outcomes because it solves the actual problem they care about.
Why This Matters
Negotiations where both sides feel their core interests were addressed tend to produce stronger, longer-lasting agreements. The other side is more likely to follow through and less likely to reopen terms later because the deal actually worked for their real situation.
Practical takeaway: Before you make your ask, identify at least one core interest on the other side and connect your proposal to it.
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