The U.S. ought to be spending more on infrastructure. This is the view of all right-thinking people, and as a right-thinking person I of course endorse it. With interest rates near record lows and the working-age population still, by historical and international standards, underemployed, governments (or in some cases entrepreneurs) should be borrowing much more to repave roads, shore up bridges, expand mass-transit systems, build new sewage-treatment plants, replace water mains, you name it. Such borrowing and spending would make the nation richer by stimulating economic activity now and paving the way for stronger economic growth in the future.
That said, the U.S. probably also ought to be spending less on infrastructure. Not overall, but on something like a per-mile basis. Broad international cost comparisons across all kinds of infrastructure don’t seem to be available, but there is a growing body of evidence on one particular infrastructure area that matters a lot to me as a New York City commuter: subways and other rail systems. And it shows that U.S. construction costs are among the world’s highest.