biz-value-chain

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Apply Porter's Value Chain Analysis to identify competitive advantage sources within an organization's activities. Use this skill when the user needs to find where value is created or lost in their operations, analyze cost structure by activity, optimize internal processes, or identify outsourcing candidates — even if they say 'where do we make money' or 'which activities should we keep in-house'.

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Value Chain Analysis

Overview

Value Chain Analysis decomposes an organization into strategically relevant activities to understand where competitive advantage originates. Each activity either adds value (customer willingness to pay) or adds cost. The gap between total value created and total cost is the margin.

When to Use

Trigger conditions:

User wants to understand which activities drive competitive advantage
User analyzing cost structure to find savings
User deciding what to keep in-house vs outsource
User asks "where do we create value?" or "why are our margins low?"

When NOT to use:

For industry-level analysis → use Porter's Five Forces
For product portfolio decisions → use BCG Matrix
For macro-environment scanning → use PESTEL

Framework

IRON LAW: Primary + Support Activities Are a Complete Set

Analyze ALL nine categories. Skipping support activities (like HR or
technology development) misses critical advantage sources. Amazon's
competitive advantage comes more from Technology Development (support)
than from any single primary activity.

Step 1: Map Primary Activities

Primary activities directly create and deliver value to the customer:

Inbound Logistics — Receiving, storing, distributing inputs (warehouse, inventory, supplier scheduling)
Operations — Transforming inputs into the final product (manufacturing, assembly, packaging, testing)
Outbound Logistics — Collecting, storing, distributing product to buyers (delivery, order fulfillment)
Marketing & Sales — Informing buyers about the product and enabling purchase (advertising, pricing, channel management)
Service — Maintaining and enhancing product value after sale (installation, repair, training, support)

Step 2: Map Support Activities

Support activities enable and improve primary activities:

Firm Infrastructure — General management, planning, finance, accounting, legal, government affairs
Human Resource Management — Recruiting, hiring, training, compensation, culture
Technology Development — R&D, product design, process improvement, IT systems
Procurement — Purchasing inputs, negotiating with suppliers, managing vendor relationships

Step 3: Assess Each Activity

For each of the 9 activities, evaluate:

Value contribution: How much does this activity contribute to what the customer is willing to pay?
Cost: What percentage of total cost does this activity represent?
Competitive comparison: Is this activity performed better, same, or worse than competitors?
Linkage: Does this activity critically enable or depend on another activity?

Step 4: Identify Advantage Sources

Competitive advantage comes from:

Cost advantage: Performing activities at lower cost than competitors
Differentiation advantage: Performing activities in a way that increases buyer willingness to pay
Linkage advantage: Coordinating between activities better than competitors (e.g., tight integration between Operations and Outbound Logistics)

Step 5: Formulate Recommendations

For each activity:

Strengthen if it's an advantage source
Optimize if it's a cost center with improvement potential
Outsource if competitors or specialists do it better and it's not an advantage source
Invest if it's a support activity that could unlock advantage in primary activities

Output Format

markdown

# Value Chain Analysis: {Company}

## Primary Activities

| Activity | Key Processes | Value Contribution | Cost % | vs Competitors |
|----------|-------------|-------------------|--------|----------------|
| Inbound Logistics | {processes} | High/Med/Low | X% | Better/Same/Worse |
| Operations | ... | ... | ... | ... |
| Outbound Logistics | ... | ... | ... | ... |
| Marketing & Sales | ... | ... | ... | ... |
| Service | ... | ... | ... | ... |

## Support Activities

| Activity | Key Processes | Value Contribution | Cost % | vs Competitors |
|----------|-------------|-------------------|--------|----------------|
| Infrastructure | {processes} | High/Med/Low | X% | Better/Same/Worse |
| HR Management | ... | ... | ... | ... |
| Technology Dev | ... | ... | ... | ... |
| Procurement | ... | ... | ... | ... |

## Advantage Sources
- **Cost advantage in**: {activities}
- **Differentiation advantage in**: {activities}
- **Key linkages**: {activity A ↔ activity B}

## Recommendations
1. **Strengthen**: {activity} — {why and how}
2. **Optimize**: {activity} — {specific improvement}
3. **Outsource**: {activity} — {rationale}

Examples

Correct Application

Scenario: Value Chain for a Taiwanese direct-to-consumer (DTC) skincare brand

Activity	Advantage?	Analysis
Inbound Logistics	Same	Standard ingredient sourcing from OEM suppliers
Operations	Differentiation ✓	Proprietary formulation process co-developed with dermatologists
Outbound Logistics	Same	Standard logistics via 黑貓/宅配通
Marketing & Sales	Differentiation ✓	Strong KOL relationships and community-driven content on social media
Service	Same	Standard customer service
Technology Dev	Differentiation ✓	Data-driven product development using customer feedback loops
Procurement	Cost advantage ✓	Long-term contracts with local ingredient suppliers at volume discounts

Key linkage: Technology Development ↔ Marketing & Sales — customer data from social media directly feeds product R&D.

Incorrect Application

What went wrong:

Only analyzed Operations and Marketing, skipped other 7 activities → Missed that Procurement was a key cost advantage source. Violates Iron Law: complete set required.
Listed "brand reputation" as a primary activity → Brand reputation is an outcome, not an activity. Activities are verbs (procure, manufacture, deliver), not nouns.

Gotchas

Activities are verbs, not assets: "Strong brand" is not an activity. "Investing in KOL partnerships to build brand awareness" is a Marketing & Sales activity.
Support activities are often the hidden advantage: Many companies' real competitive edge is in Technology Development, HR, or Procurement — not the primary activities. Don't treat support as overhead.
Linkages are where magic happens: The connection between activities often matters more than individual activities. ZARA's advantage is the linkage between Design (Technology Dev) → Manufacturing (Operations) → Store delivery (Outbound Logistics) — not any single activity alone.
Service company adaptation: For service businesses, "Operations" = service delivery, "Outbound Logistics" may not apply. Adapt the framework to fit the business model.

References

For comparison with other strategy frameworks, see
```
references/framework-comparison.md
```