Sustainability and self sufficiency have meaning

[Guest]

Say for instance you have :
1. a person that has eggs to trade and needs lettuce.
2. a person that has lettuce and wants mangoes.
3. a person that has mango that wants eggs.
In this scenario products wont be traded. That is why some form of script could be used so each person now has, let’s say 3 Puna-bucks and each person can buy what ever he wants.