A Review of Innovation Adoption Models

Abstract

This paper provides a critical review of Innovation Adoption Models (IAMs), tracing their evolution from individual psychological perspectives to holistic organizational frameworks. As the global economy enters the "Imagination Age" driven by Agentic AI and digital ecosystems, understanding how innovations diffuse across social systems is vital. This review synthesizes findings from 25 peer-reviewed sources, evaluating the transition from the Technology Acceptance Model (TAM) to the more comprehensive Technology-Organization-Environment (TOE) and Unified Theory of Acceptance and Use of Technology (UTAUT) frameworks. The study explores how variables like "Relative Advantage," "Institutional Voids," and "Technological Readiness" influence the rate of adoption.