Definition

Everett M. Rogers (1962) defined diffusion of innovation as “the process by which an innovation is communicated through certain channels over time among members of a social system.”

Introduction

Why do some people buy new tech instantly while others wait years? Diffusion theory explains how new ideas spread through society.

Explanation

Adopter Categories:
1️⃣ Innovators (2.5%) – risk-takers, tech enthusiasts.
2️⃣ Early Adopters (13.5%) – opinion leaders.
3️⃣ Early Majority (34%) – deliberate, socially influenced.
4️⃣ Late Majority (34%) – skeptical, wait for proof.
5️⃣ Laggards (16%) – resist change.

Key Takeaways

Understanding adopter types helps in launch timing.

Social influence accelerates diffusion.

Innovations need clear value and simplicity.

Real-World Case

Tesla’s EV Adoption Curve — early adopters drove hype; as infrastructure improved, early majority followed, boosting global sales.
Reference: https://www.tesla.com