---
id: "open-question-agent-market-structure"
type: "open-question"
source_timestamps: ["¶18"]
tags: ["market-evolution", "competition"]
related: ["concept-a2a-commerce"]
resolution_path: "Observation of market share concentration among AI platforms over the next 2-3 years, and tracking the adoption rates of brand-specific white-label agents."
sources: ["geo"]
sourceVaultSlug: "hbr-seg-geo"
originDay: 3
articleStem: "hbr-nm-97-retailers-ai-shoppers"
sourceUrl: "https://hbr.org/2025/10/what-should-retailers-do-about-ai-shoppers"
sourceTitle: "What Should Retailers Do About AI Shoppers?"
---
# Will the A2A market be dominated by mega-agents or specialty agents?

## Open Question — Mega-agents or specialty agents?

The authors note it is too early to know how agent competition will play out. The market could:
- **Consolidate** around a few **mega-agents** (Amazon, Google, OpenAI) that mediate most buying; or
- **Fragment** into strong **specialty agents** categorized by industry, lifestyle, or white-label brand agents.

This structural question determines how much leverage retailers retain in [[concept-a2a-commerce]] and which posture on the [[framework-ai-agent-spectrum]] is safest.

**Resolution path:** Observe market-share concentration among AI platforms over the next 2–3 years, and track adoption of brand-specific white-label agents.

**Enrichment angle:** Deloitte's "launch branded agents" recommendation suggests a third outcome — a hybrid where retailers run **first-party agents** that coexist with mega- and specialty agents (a portfolio, not a winner-take-all).