Getting it right matters if we are to find cost-effective solutions to this and other global problems. Obviously, everyone would like to stop wars and violence, just as we would like to end poverty, hunger, and global warming, while providing education to all.
如果想找到解决这些全球问题的经济有效的办法，第一步就是要先确定暴力的来源。显然，每个人都愿意制止战争和暴力，就像我们想要消除贫困、饥饿和全球变暖，并为所有人提供教育资源。但资源的有限性制约着国际社会。我们必须分出轻重缓急，对成本效益进行经济分析可以做到这一点。