I’m not sure what strategic grains stockpiles you’re talking about, to be honest.
Can you point to the papers you’re mentioning, please? Merci!
it has just been a debate in Norway over many year period. The Parlament introduced in 1928 law about strategic grain reserves, should have minimum 1 year of grain reserves. This lasted until 1995, when law abandoned. I don't know many papers on it, possibly there is. At least it has been debated in the newspapers here for years. It seems like the opponents don't understand low probability high impact event. They think low probability means nothing needs to be done, until of course an event hits. The cost seems low (compared to all other nonsense money spent on) and the grain is not lost, can still be used. The loss per year due to storage should be minimal if stored well.
And yes it dose not need to be used as animal food, but can be used to feed vegans. Now with lack of grain and mushrooms even the vegans could be forced to switch to horse burgers (sharing with their cats).
Grain reserves give more stability, it is a cheap hedge (if done before crisis hits)