(Bloomberg View) — 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.
Transportation blogger Alon Levy has probably done the most to raise awareness of this, with five years of posts documenting the cost differences. And last year, Tracy Gordon of the Urban-Brookings Tax Policy Center and David Schleicher of Yale Law School examined 144 planned and finished rail projects in 44 countries and found that the four most expensive on a per-kilometer basis (and six of the top 12) were in the U.S.
To put these numbers in global perspective, New York's Second Avenue Subway will cost roughly eight times more than Tokyo's Koto Waterfront line and 36 times more than Madrid's Metrosur tunnels on a per-kilometer, purchasing power parity (PPP) basis.
Why is this? It's actually pretty hard to answer. Here's Levy, writing in November 2014:
I try to avoid giving explanations for these patterns of construction costs. If I knew for certain what caused them, I would not be blogging; I would be forming a consultancy and teaching New York and other high-cost cities how to build subways for less than $100 million per kilometer.
Still, others have been willing to offer explanations. In a 2012 Bloomberg View piece, New York land-use and transit writer Stephen Smith blamed over-reliance on outside consultants, overly ambitious station architecture and a legal system that favors contractors over the agencies paying them to build things. Gordon and Schleicher agreed that the legal system may be an issue, but for other reasons:
Many of the world's most expensive projects are in the United Kingdom, Australia, and New Zealand, which, like the United States, have common-law systems. So it might be that common-law systems provide legal protections for property owners — allowing more lawsuits over noise, smoke, and other nuisances, as well as limits on eminent domain — that increase costs by forcing the government to pay off opponents or to locate projects inefficiently to avoid angering property owners.
They also cite political fragmentation as a factor that drives up costs — U.S. commuter rail systems often cross city and state lines, which brings coordination challenges — and note that when regional authorities are created to manage these challenges, they can bring a whole new set of problems.
Others have argued that labor laws governing infrastructure projects drive up costs. Gordon and Schleicher are dubious of that as an explanation for why the U.S. has higher costs than other countries, though, because "American laws would have to be tougher than those in Europe, where trade unions are much more powerful. (France, anyone?)"
