I think I've finally realised a complete ethical foundation on which I can base all my economic decisions. It's been a while in the making, and although I like it in its current state, it's possible it will change in the future. we'll see.
basically, it consists of two rules (guideline), in order of importance:
1. Do not Waste.
2. Do not Steal.
considering that they are in order of importance, what the second rule really means is "do not Steal unless not to do so would cause Waste".
I think that covers everything. the rational is below.