Mark Johnson

Reinvent Your Business Model, four-box BM framework

Co-founder of Innosight, the innovation strategy consultancy he established with Clayton Christensen. Johnson's four-box framework — Customer Value Proposition, Profit Formula, Key Resources, and Key Processes — gave practitioners a structured lens for diagnosing and redesigning business models. His book 'Reinvent Your Business Model' remains a core text in corporate innovation curricula.