Again, I am very surprised that people would down-vote this. The post articulates the core idea behind Arrow-Debreu securities, and taking the question serious

Again, I am very surprised that people would down-vote this. The post articulates the core idea behind Arrow-Debreu securities, and taking the question seriously could yield some very interesting discussion about prices. https://en.wikipedia.org/wiki/State_prices https://en.wikipedia.org/wiki/State_prices