<span>The tragedy of the commons is an economic theory of a situation within a shared-resource system where individual users acting independently according to their own self-interest behave contrary to the common good of all users by depleting or spoiling that resource through their collective action </span>
Since our method of communication wasn't very reliable, I couldn't get enough details. So if you see any mistakes, I apologize. I've tried to fit the criteria you've described, and I hope it works for you.
