In solving problems that one individual or species is having, use the solutions that another individual or species has already come up with.
It works even for complicated things like economics.
In fact, it works even better
for complicated things like economics, because nature is the most experienced systems engineer in our universe.
And while it might not immediately sound easy to use nature's solution to the task of effectively allocating resources to where they are needed the most, it turns out that you already know how to do it! It's how your body
works. And it's how most families
work. When one part of your body or family is lacking something, the other parts do their best to provide it, and vice versa. Each individual offers what it can to any other individual that needs it. There is no artificial score keeping. There is just giving what you have more than enough of, and taking what you need from what's available.
It's the economics of life, and it's just what you do
when you realize that you're a valuable part of a larger wh***
And, it's even simpler than bartering, because it's simply living
, which even a child knows how to do quite expertly! :-)
Offer what you have more than enough of, to whomever needs it, and take what you need, to be your best, from what is offered to you.