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Sorry, I don't understand that. Could you explain?

Arrow's Theorem applies when you have a discrete number of choices and you try to aggregate people preferences over them (in specific ways etc).

If instead of discrete elections, Alice and Bob can negotiate that _today_ they go to the football match and _tomorrow_ they go to the opera, that opens up new spaces for coordination that Arrow's theorem doesn't touch.

Similar, if Alice is allowed to pay Bob, or if they can do political horse-trading like 'I support your foreign policy, if you support my lowering the speed limit', that's also not covered by Arrow's theorem.

The theorem really only applies to deterministically aggregating people's individual orderings of a discrete set of options into some aggregated order for the group. That's it.

So it doesn't concern side-payments, or other continuous compromises. Or repeated play.




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