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Science and Technology Law

University of Pennsylvania Carey Law School

Network economic effects

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Full-Text Articles in Law

Moore’S Law, Metcalfe’S Law, And The Theory Of Optimal Interoperability, Christopher S. Yoo Jan 2015

Moore’S Law, Metcalfe’S Law, And The Theory Of Optimal Interoperability, Christopher S. Yoo

All Faculty Scholarship

Many observers attribute the Internet’s success to two principles: Moore’s Law and Metcalfe’s Law. These precepts are often cited to support claims that larger networks are inevitably more valuable and that costs in a digital environment always decrease. This Article offers both a systematic description of both laws and then challenges the conventional wisdom by exploring their conceptual limitations. It also explores how alternative mechanisms, such as gateways and competition, can permit the realization benefits typically attributed to Moore’s Law and Metcalfe’s Law without requiring increases in network size.


When Antitrust Met Facebook, Christopher S. Yoo Jul 2012

When Antitrust Met Facebook, Christopher S. Yoo

All Faculty Scholarship

Social networks are among the hottest phenomena on the Internet. Facebook eclipsed Google as the most visited website in both 2010 and 2011. Moreover, according to Nielsen estimates, as of the end of 2011 the average American spent nearly seven hours per month on Facebook, which is more time than they spent on Google, Yahoo!, YouTube, Microsoft, and Wikipedia combined. LinkedIn’s May 19, 2011 initial public offering (“IPO”) surpassed expectations, placing the value of the company at nearly $9 billion, and approximately a year later, its stock price had risen another 20 percent. Facebook followed suit a year later with …


Internet Policy Going Forward: Does One Size Still Fit All?, Christopher S. Yoo Jun 2012

Internet Policy Going Forward: Does One Size Still Fit All?, Christopher S. Yoo

All Faculty Scholarship

Much of the current debate over Internet policy is framed by the belief that there has always been a single Internet that was open to everyone. Closer inspection reveals a number of important ways in which the architecture has deviated from this commitment. Providers frequently deploy Voice over Internet Protocol (VoIP) and Internet Protocol Television (IPTV) over hybrid networks that reserve bandwidth or employ technologies such as MultiProtocol Label Switching (MPLS) that are not fully accessible to the public Internet. At the same time, the increasing value in variety and decreasing returns to scale is mitigating the value of being …


Toward A Unified Theory Of Access To Local Telephone Systems, Daniel F. Spulber, Christopher S. Yoo Dec 2008

Toward A Unified Theory Of Access To Local Telephone Systems, Daniel F. Spulber, Christopher S. Yoo

All Faculty Scholarship

One of the most distinctive developments in telecommunications policy over the past few decades has been the increasingly broad array of access requirements regulatory authorities have imposed on local telephone providers. In so doing, policymakers did not fully consider whether the justifications for regulating telecommunications remained valid. They also allowed each access regime to be governed by its own pricing methodology and set access prices in a way that treated each network component as if it existed in isolation. The result was a regulatory regime that was internally inconsistent, vulnerable to regulatory arbitrage, and unable to capture the interactions among …


Network Neutrality, Consumers, And Innovation, Christopher S. Yoo Aug 2008

Network Neutrality, Consumers, And Innovation, Christopher S. Yoo

All Faculty Scholarship

In this Article, Professor Christopher Yoo directly engages claims that mandating network neutrality is essential to protect consumers and to promote innovation on the Internet. It begins by analyzing the forces that are placing pressure on the basic network architecture to evolve, such as the emergence of Internet video and peer-to-peer architectures and the increasing heterogeneity in business relationships and transmission technologies. It then draws on the insights of demand-side price discrimination (such as Ramsey pricing) and the two-sided markets, as well as the economics of product differentiation and congestion, to show how deviating from network neutrality can benefit consumers, …


Rethinking Broadband Internet Access, Daniel F. Spulber, Christopher S. Yoo Jun 2008

Rethinking Broadband Internet Access, Daniel F. Spulber, Christopher S. Yoo

All Faculty Scholarship

The emergence of broadband Internet technologies, such as cable modem and digital subscriber line (DSL) systems, has reopened debates over how the Internet should be regulated. Advocates of network neutrality and open access to cable modem systems have proposed extending the regulatory regime developed to govern conventional telephone and narrowband Internet service to broadband. A critical analysis of the rationales traditionally invoked to justify the regulation of telecommunications networks--such as natural monopoly, network economic effects, vertical exclusion, and the dangers of ruinous competition--reveals that those rationales depend on empirical and theoretical preconditions that do not apply to broadband. In addition, …


What Can Antitrust Contribute To The Network Neutrality Debate?, Christopher S. Yoo Aug 2007

What Can Antitrust Contribute To The Network Neutrality Debate?, Christopher S. Yoo

All Faculty Scholarship

Over the course of the last year, policymakers have begun to consider whether antitrust can play a constructive role in the network neutrality debate. A review of both the theory and the practice of antitrust suggests that it does have something to contribute. As an initial matter, antitrust underscores that standardization and interoperability are not always beneficial and provides a framework for determining the optimal level of standardization. In addition, the economic literature and legal doctrine on vertical exclusion reveal how compelling network neutrality could reduce static efficiency and show how mandating network neutrality could impair dynamic efficiency by deterring …