Despite a crying need for better infrastructure, investment in it has actually fallen in 10 major economies since the financial crisis, including the U.S., according to a new study by the McKinsey Global Institute. Meanwhile, China is still going gangbusters on roads, bridges, sewers, and everything else that makes a country run. “China spends more on economic infrastructure annually than North America and Western Europe combined,” according to the report published Wednesday. Economists around the world have been arguing that now is a great time to invest in infrastructure because interest rates are super-low and the global economy could use the spending jolt. “Is anyone proud of Kennedy airport?” Harvard University economist Lawrence Summers likes to ask . The MGI report cites 10 countries where infrastructure spending fell as a share of gross domestic product from 2008 to 2013: the U.S., U.K., Italy, Australia, South Korea, Brazil, India, Russia, […]