It's not just the technology: Boeing has outsourced significant work (dollars) in markets where they think they have a good shot at picking up a large number of orders (Japan, China, etc.).
It's not just the technology: Boeing has outsourced significant work (dollars) in markets where they think they have a good shot at picking up a large number of orders (Japan, China, etc.).
Also, the economies of scale in the commercial aircraft industry are so huge that there really isn't much room for more than two competitors to manufacture wide bodied jets. If Boeing built their aircraft soley with US suppliers, they'd be shooting themselves in the foot, because Airbus would use that fact to market their planes around the world.