Cord makes some good points about the disadvantages of open networks, but I think it’s a mistake for libertarians to hang our opposition to government regulation of networks on the contention that closed networks are better than open ones. Although it’s always possible to find examples on either side, I think it’s pretty clear that, all else being equal, open networks tend to be better than closed networks.
There are two basic reasons for this. First, networks are subject to network effects—the property that the per-user value of a network grows with the number of people connected to the network. Two networks with a million people each will generally be less valuable than a single network with two million people. The reason TCP/IP won the networking wars is that it was designed from the ground up to connect heterogeneous networks, which meant that it enjoyed the most potent network effects.
Second, open networks have lower barriers to entry. Here, again, the Internet is the poster child. Anybody can create a new website, application, or service on the Internet without asking anyone’s permission. There’s a lot to disagree with in Tim Wu’s Wireless Carterfone paper, but one thing the paper does is eloquently demonstrate how different the situation is in the cell phone world. There are a lot of innovative mobile applications that would likely be created if it weren’t so costly and time-consuming to get the telcos permission to develop for their networks.
The Technology Liberation Front is the tech policy blog dedicated to keeping politicians' hands off the 'net and everything else related to technology.