The problem is that the analysis of the alternatives only ever takes into account efficiency and not resilience. Which is typical of “rational expectations” bel

The problem is that the analysis of the alternatives only ever takes into account efficiency and not resilience. Which is typical of “rational expectations” belief systems based upon atomised individuals. However the real world has politics in it, as we saw during the pandemic, at which points jurisdictions commandeer resources for themselves regardless of whether a “better price” is available elsewhere. Within a jurisdiction where resources can be directed you only need one capacity for output. In a market situation you need multiple suppliers all of which with excess capacity to supply that you have reserved and which cannot be countermanded by other action (so it needs to be defended with military capacity). Once you cost all that in you may just find that doing it yourself is more efficient, once resilience is taken into account properly. Nature rarely goes for the most efficient solution. When it does it tends to go the way of the Dodo.