Earlier quoted context omitted.
One option is government subsidies, like what's done for farms and military hardware. Just keep buying it up, even if it rots or rusts. The goal is to make sure those industries remain healthy and don't slip back in expertise.
Most governments can’t afford to do that.
If that makes goods too expensive for the population (it won't) they couldn't afford them anyways. They were simply paying for the goods by mortgaging their future.