Why are you talking about economic communication? Indeed it’s possible to use smart contracts and blockchain technology for building any forms and types of human-machine communication.
We see that humans need a high-level communication protocol to interact with machines. It’s difficult to teach a machine to understand ordinary humans’ communications. But it’s quite a different story to teach a machine to realize usual for humans economic processes such as: market transaction, contract liability and property passage. It should be enough to organize high-level human-to-machine communication.