To form part of the modern economy, firms and households need access to networks that deliver water and dispose of sewage and solid waste. They need access to the grids that distribute electricity, urban transportation, goods, education, health care, security, and finance.
要成为现代经济的一部分，企业和家庭需要接入带来水源和处理污水和固体垃圾的网络。他们需要接入带来电力、城市交通、商品、教育、医疗、安全和金融的网络。缺少这些网络的任何一个都会造成生产率暴跌。想象一下，如果你每天必须走上两小时才能获得饮用水或作为燃料的木柴，你的生活会变成怎样。