## Core Competency

### Concept (Prahalad & Hamel)

Core competencies are unique capabilities and resources that a company builds over time — specialized knowledge, expertise, or technology that serve as a source of competitive advantage over rivals.

### Key Characteristics

Cannot be built on a single capability or single technological know-how
Must be an integration of many resources — a combination of skills and techniques
Defined as the sum of 5–15 areas of developed expertise
The whole organization must be able to utilize these capabilities
Core competencies are capabilities that serve as a source of competitive advantage for the firm

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## Three Tests for Core Competency (Prahalad & Hamel)

Test	Question to Ask
Competitor Differentiation	Does performing this significantly better than competitors give a unique edge? Is it difficult for competitors to imitate?
Customer Value	Does it deliver a fundamental benefit to the end customer with real impact? (If the customer chose the company without this capability, it is NOT a core competency)
Application Across the Organization	Is it applicable to the whole organization — fundamental from an enterprise-wide point of view, not just one division?

> All three conditions must be met for a capability to qualify as a core competency.

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## VRIO Criteria (Criteria for Building Core Competency)

Criterion	Description
Valuable (V)	Allows the firm to exploit opportunities or avert threats in the external environment
Rare (R)	Very few (or no) competitors possess this capability
Costly to Imitate (I)	Competing firms are unable to develop it easily — high imitation cost/difficulty
Non-substitutable (N)	No strategic equivalents exist — no other capability can deliver the same result

> If a capability is Valuable, Rare, Costly to Imitate, AND Non-substitutable → it is a source of sustainable competitive advantage.

Worked example

### Example 1

Google's Search Algorithm — Applying Both Frameworks:

Three Tests:

Competitor Differentiation: No competitor matches Google's search quality consistently ✓
Customer Value: Users rely on search results directly for decisions — real fundamental impact ✓
Organization-wide: Powers Google Ads, Maps, Assistant, Cloud — whole enterprise ✓

→ Core Competency confirmed.

VRIO:

Valuable: Enables billions in ad revenue ✓
Rare: Only Google has this level of search intelligence ✓
Costly to Imitate: Requires massive training data, infrastructure, and decades of refinement ✓
Non-substitutable: No strategic equivalent delivers the same reach and accuracy ✓

→ Sustainable Competitive Advantage.

### Example 2

What Is NOT a Core Competency:

A retail store's ability to maintain clean store premises:

Competitor Differentiation: All good retailers do this ✗
Customer Value: Customers expect it but it doesn't differentiate why they chose this store ✗
Organization-wide: Not fundamental across the whole organization's strategy ✗

→ This is a threshold capability (needed to compete), NOT a core competency.

⚠️ Common exam mistakes

Confusing any specialized skill with a core competency — a capability must pass all three Prahalad & Hamel tests to qualify.
Treating VRIO as a separate framework from core competency — VRIO is the validation tool for whether a capability qualifies as a core competency that delivers sustainable competitive advantage.
Thinking a single technology or patent qualifies as a core competency — core competencies require integration of multiple capabilities across the organization.
Confusing threshold capabilities (necessary to participate in the industry) with core competencies (capabilities that differentiate and create advantage).

Reference:

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Core Competency — Concept, Tests, and VRIO Criteria

Worked example

⚠️ Common exam mistakes