The Mediator is a Substack newsletter by Doug Shapiro that provides in-depth analysis of the structural changes reshaping the media industry. Unlike general news outlets, it focuses on the 'why' behind trends, offering a strategic perspective drawn from Shapiro's experience as a Wall Street analyst and Turner executive. The newsletter helps media professionals and investors anticipate and navigate change by distinguishing what matters from what doesn't. It distinguishes itself through its analytical rigor and insider viewpoint, serving as a trusted resource for understanding the evolving media landscape.
This analyst report examines the current state of the global advertising economy, highlighting how growth is increasingly concentrated among four dominant platforms: Google, Meta, ByteDance, and Amazon. It further analyzes the disruptive potential of AI on the advertising supply chain, specifically regarding content creation costs, intermediary layers, and the rise of agentic advertising.
