Most businesses fail not because they lack effort, but because they enter markets with low entry barriers, making them vulnerable to intense competition, price wars, and shrinking profit margins. This article explores why strong entry barriers matter, the different types—from economic and technological to regulatory and brand-driven—and how to identify and build them into your business. Whether you’re launching a new venture or restructuring an existing one, creating proprietary technology, securing customer loyalty, leveraging regulations, and controlling supply chains can help you build a sustainable, high-profit enterprise. Instead of chasing easy markets, find industries that are hard to dominate—then position yourself as the dominant player. If you’re serious about long-term success, this guide will show you how.