---
document_id: agent.cookbook.brand_competitive_analysis
schema_version: 2
parent_document_id: agent.cookbook
section: cookbook
---

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# Brand and competitor research / 品牌与竞品研究

Understand a brand's market and competitive performance, who it competes with, and what drives the difference. / 理解一个品牌的市场表现和竞争表现、主要与谁竞争，以及差异由什么驱动。

## Business questions / 商业问题

- How has the brand performed over the selected period?
  品牌在所选时间内表现如何？
- Which competitors are gaining or losing ground?
  哪些竞品正在增长或失去优势？
- Which products, price bands, shops, or other observable factors explain the change?
  哪些商品、价格带、店铺或其他可观察因素解释了变化？

## Approach / 方法

1. Confirm the brand, market, comparison set, and time range needed to answer the question.
   明确回答问题所需的品牌、市场、对照范围和时间。
2. Align entities and choose comparable evidence before calculating differences.
   先对齐实体并选择可比证据，再计算差异。
3. Compare market position and change, then drill into the observable drivers that matter.
   比较市场位置及其变化，再下钻真正相关的可观察驱动因素。
4. Answer with the actual scope, evidence, metric definitions, and important limitations.
   按实际范围、证据、指标口径和重要限制给出回答。

## Boundaries / 边界

- This method does not prescribe a platform, tool, field, or fixed data range. Authenticated runtime capabilities are authoritative.
  本方法不预设平台、工具、字段或固定数据范围；以认证后的运行时能力为准。
- Similar movement is not by itself evidence of causality.
  同步变化本身不能证明因果关系。