Search Engine Competition with Network Externalities
29 Pages Posted: 19 Apr 2011
There are 2 versions of this paper
Search Engine Competition with Network Externalities
Search Engine Competition with Network Externalities
Date Written: April 13, 2011
Abstract
The market for Internet search is not only economically and socially important, it is also highly concentrated. Is this a problem? We study the question whether "competition is only a free click away". We argue that the market for Internet search is characterized by indirect network externalities and construct a simple model of search engine competition, which produces a market share development that fits the empirically observed development since 2003 well. We find that there is a strong tendency towards market tipping and, subsequently, monopolization, with negative consequences on economic welfare. Therefore, we propose to require search engines to share their data on previous searches. We compare the resulting "competitive oligopoly" market structure with the less competitive current situation and show that our proposal would spur innovation, search quality, consumer surplus, and total welfare. We also discuss the practical feasibility of our policy proposal and sketch the legal issues involved.
Keywords: Search engines, network externalities, query logs, antitrust, regulation
JEL Classification: L10, K23, L86
Suggested Citation: Suggested Citation
Do you have negative results from your research you’d like to share?
Recommended Papers
-
Position Auctions with Consumer Search
By Susan Athey and Glenn Ellison
-
Paid Placement: Advertising and Search on the Internet
By Yongmin Chen and Chuan He
-
An Empirical Analysis of Search Engine Advertising: Sponsored Search in Electronic Markets
By Anindya Ghose and Sha Yang
-
By Sha Yang and Anindya Ghose
-
From Generic to Branded: A Model of Spillover Dynamics in Paid Search Advertising
-
By Juan Feng, Hemant K. Bhargava, ...
-
Search Engine Advertising: Channel Substitution when Pricing Ads to Context
By Avi Goldfarb and Catherine E. Tucker
-
A Dynamic Model of Sponsored Search Advertising
By Song Yao and Carl F. Mela