If everyone's giving everyone the same gift, it's not really a "gift" any more, more of a p2p buy-now-pay-later arrangement (which isn't a terrible idea, but it's suboptimal for those with later bithdays).
Might as well just have an annual theme and try to negotiate a bulk discount.
it's simple. if i were part of an economy, we would all just act rationally. that way everything would be efficient
Not everything needs to be optimized. Probably only rich people would engage in such a scheme anyway.
The whole premise here is cost optimization.
It's not cost optimization its payment on installments..
Personally, I find it less convenient to have more than 1 bill and a group of 30 paying on average every 12 days probably makes it less convenient for anyone. But there are some strange consumers who like to delude themselves.