Southwest Airlines
For decades, the biggest airlines in the world tried to copy Southwest and failed, and not for lack of money or talent. Southwest launched in 1971 on a simple bet: make flying as cheap as driving and far more people will fly. To make that bet pay, every choice in the business had to point the same way, from a single aircraft type to 30-minute gate turnarounds to no assigned seats. When rivals tried to clone it, including the famous Continental Lite, they stripped the amenities but kept the old machine, and customers ended up unhappy on both ends.
For founders and operators, this case sharpens where durable advantage actually lives, and why competitors can copy any one of your decisions without copying what makes them work together. It pushes you to examine whether your own strengths reinforce each other or just sit side by side. The mechanism that made Southwest so expensive to imitate is laid out inside.