Perry Marshall is one of the most expensive business strategists in the world. He’s guided clients like FanDuel and InfusionSoft from startups to hundreds of millions of dollars. Not only that, NASA’s Jet Propulsion Labs uses his 80/20 Curve as a productivity tool. His reinvention of the Pareto Principle is published in Harvard Business Review. His … Continue reading Perry Marshall – The network effect and how to build a business that lasts