"Leverage Points: Places to Intervene in a System"
a "seminal essay" by "the environmental scholar and systems theorist Donella Meadows"
in which she describes "nine leverage points that can be used to change systems run amok. Some of the most powerful, she argued, are information flows, the rules of the system (e.g. incentives and penalties), and the goals of the system"
(NYRB)