Single-customer defence industry defies ordinary market logic

Competition can lower costs and encourage innovation only when a nation orders enough equipment to sustain multiple suppliers. The case for public ownership at Barrow rests on nuclear-submarine construction having the British government as effectively its sole customer. Private borrowing by such a supplier still reaches the taxpayer through government-backed orders, debt costs, and the profit margin charged to that customer. Both Vickers at Barrow and Cammell Laird once participated in nuclear-submarine construction, although splitting HMS Conqueror's hull and machinery between them cost more. Historic Royal Dockyards offered control over quality, technology, capacity, and lean-time costs. Preserving sovereign industrial capability therefore requires a deliberate choice between competition, subsidised private supply, and public ownership.