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which model is the best for stewardship of a resource?What do "stewardship" and "resource" mean? Who agree on one of those definitions? Who form a natural conflicts with them?
Considering stewardship of natural ecosystems. Does that mean holding it in stasis? Keeping out human effects? How do you know if a snail went extinct because of natural or human factors? Which model influences that decision?
The chief advantage--and defining feature--of economic ownership models is they convert almost every question into currency. That seems base at first. But it enables competing sets of goals to be discussed within a common language.
If we won't assign natural resources a dollar value, and a set of owners incentivized to defending that value, or protect them absolutely under the law, those resources will be lost. (If there is a silver lining to California's NIMBYs, it is this. That energy results from an ownership system and defense mechanism. Tweak the variables and that energy could fight for our wetlands.)