The Trouble With Infrastructure Pricing

A blog about business and economics.
April 2 2012 4:26 PM

Infrastructure Pricing Shouldn't Maximize Profits

Brad Plumer's rundown of the promise and peril of infrastructure privatization is a must-read, but in terms of first-best optimal policy solutions it seems to me that this conversation begins and ends with the basic point that it's not in the public interest for access to infrastructure projects to be priced at a profit-maximizing level.

Imagine a city that owns, among other things, a bridge. Sometimes this bridge is very crowded. The smart thing for the city to do is to put a toll on the bridge and set the toll high enough to leave traffic uncongested. One benefit of that policy is that it drastically reduces the quantity of economic waste generated by people sitting in traffic. Another benefit of that policy is that the toll revenue allows the city to decrease taxes, which reduces the quantity of deadweight loss created by those taxes. So far so good. And in practical political terms, a privately owned bridge may well do a better job of remembering to set the price high at peak demand times than would a public agency. But suppose the bridge isn't crowded at nights or on weekends? Well here the optimal thing to do is to make the bridge toll-free. After all, the city has the damn thing and so people may as well use it. Among other things, making the bridge free at points when demand is low facilitates time-switching of trips so that people who want to avoid the toll during peak hours have every incentive to use the bridge some other time. A private bridge owner, by contrast, doesn't want to ever let the bridge be toll-free. He's not really interested in managing congestion efficiently or maximizing the overall social value of the bridge. If he's smart, he'll make the bridge cheaper at low-demand times than at high-demand ones but it's never profit maximizing to offer a free bridge.

Advertisement

Now in the real world, publicly owned transportation infrastructure is essentially never priced optimally as I outlined above. So it's very possible that in practice some jurisdictions are reaping some gains by moving to privatization. But in a structural sense, privatizing your bridges is a step toward locking bad pricing policies in permanently.

Matthew Yglesias is the executive editor of Vox and author of The Rent Is Too Damn High.

TODAY IN SLATE

Politics

The Democrats’ War at Home

How can the president’s party defend itself from the president’s foreign policy blunders?

An Iranian Woman Was Sentenced to Death for Killing Her Alleged Rapist. Can Activists Save Her?

Piper Kerman on Why She Dressed Like a Hitchcock Heroine for Her Prison Sentencing

Windows 8 Was So Bad That Microsoft Will Skip Straight to Windows 10

Homeland Is Good Again! For Now.

Politics

Cringing. Ducking. Mumbling.

How GOP candidates react whenever someone brings up reproductive rights or gay marriage.

Building a Better Workplace

You Deserve a Pre-cation

The smartest job perk you’ve never heard of.

The U.S. Has a New Problem in Syria: The Moderate Rebels Feel Like We’ve Betrayed Them

The Ludicrous Claims Women Are Pitched at “Egg Freezing Parties”

Behold
Oct. 1 2014 11:48 AM An Up-Close Look at the U.S.–Mexico Border
  News & Politics
The World
Oct. 1 2014 12:20 PM Don’t Expect Hong Kong’s Protests to Spread to the Mainland
  Business
Moneybox
Oct. 1 2014 2:16 PM Wall Street Tackles Chat Services, Shies Away From Diversity Issues 
  Life
Outward
Oct. 1 2014 11:59 AM Ask a Homo: A Lesbian PDA FAQ
  Double X
The XX Factor
Oct. 1 2014 2:08 PM We Need to Talk: Terrible Name, Good Show
  Slate Plus
Political Gabfest
Oct. 1 2014 1:53 PM Slate Superfest East How to get your tickets before anyone else.
  Arts
Brow Beat
Oct. 1 2014 2:24 PM The New Interstellar Trailer Is the Most Exciting Yet
  Technology
Future Tense
Oct. 1 2014 2:26 PM The Apple Graveyard Leave a flower for a dead Apple product.
  Health & Science
Bad Astronomy
Oct. 1 2014 12:01 PM Rocky Snow
  Sports
Sports Nut
Sept. 30 2014 5:54 PM Goodbye, Tough Guy It’s time for Michigan to fire its toughness-obsessed coach, Brady Hoke.