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> Some farmers will switch from livestock to corn.

This switch can take too long and would need to take place in an industry often already razor tin margins thanks to big chains (which can contribute to inflexibility) and then plants take time to grow and depend on the seasons, etc. Also fertilisers go into both the livestock and the corn feed.

>Basically - there is no shortage because markets will do their job and mean there is always availability of all goods.

A shortage doesn't need to mean people are starving. If prices of staple foods go up enough it too causes societal unrest. (See Arab spring where bread prices went up, governments tried to protect their peg to the dollar, etc)

>The only time there will be a shortage is when governments do things like cap prices or restrict exports/imports.

Well here we see that happening when fuels and other components for fertilisers and some things like vegetable oils are affected by war.




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