Quantifying infrastructure investment is a challenge, but one place to start is by looking at the amount of money the government spends on buildings and large-scale projects. Nationwide, public construction spending is just over 1.5 percent of GDP — the lowest share since 1993. Public construction does not exactly equate with infrastructure investment, but it's a fair proxy...Most of the money spent on building schools, highways and waste disposal facilities comes from state and local governments, not from the federal government. As of April 2014, more than 90 percent of the $267 billion spent by the public sector (at a seasonally adjusted annual rate) was at the state and local levels...
在这个二月 2014年11月11日,汽车在底特律的一个坑洼中行驶的照片。今年冬天,雪和严寒的无情循环正在测试建立社区的钢铁和水泥骨架。在不习惯这种情况的城镇里,管道破裂了,道路变成了满是坑洞的月光,坑洞足够大,可以挡住过往车辆的车轴。卡洛斯·奥索里奥/ AP文件
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