"Right Relationship" by Brown and Garver, discusses the urgent need for achieving an economy that is recognized to be a subsidiary of the overall ecosystem of the planet. They address key questions regarding the purpose, function, appropriate size, fairness, and governance of a world economic system and propose new ideas to place our economy in correct relationship with the Earth's ecosystem. They argue that such a moral economy is essential if we are to avoid systemic collapse as our "growth economy" outstrips the Earth's limited ability to recycle our waste, and as the Earth's inventory of critical raw materials and minerals is used up, in the face of growing population and growing affluence within those populations.