Publications

February 2007
Article

Strategic Bidder Behavior in Sponsored Search Auctions

By: Benjamin Edelman and Michael Ostrovsky

We examine sponsored search auctions run by Overture (now part of Yahoo!) and Google and present evidence of strategic bidder behavior in these auctions. Between June 15, 2002, and June 14, 2003, we estimate that Overture's revenue from sponsored search might have been... View Details

Keywords: Auctions; Strategy; Behavior; Revenue; Performance Efficiency; Bids and Bidding; Search Technology

2008
Other Unpublished Work

Competition among Sponsored Search Services

By: Benjamin Edelman

Keywords: Search Technology; Competition; Information Technology Industry

15 Apr 2013
Research & Ideas

Solving the Search vs. Display Advertising Quandary

should be spending more money on search ads.” The most measurable form of online advertising are search ads—ads linked with results from search... View Details

Keywords: by Michael Blanding; Advertising

July 2014
Article

Convergence of Position Auctions under Myopic Best-Response Dynamics

By: Matthew Cary, Aparna Das, Benjamin Edelman, Ioannis Giotis, Kurtis Heimerl, Anna Karlin, Scott Duke Kominers, Claire Mathieu and Michael Schwarz

We study the dynamics of multi-round position auctions, considering both the case of exogenous click-through rates and the case in which click-through rates are determined by an endogenous consumer search process. In both contexts, we demonstrate that the dynamic... View Details

Keywords: Sponsored Search; Advertising; Google; Equilibrium Selection; Online Advertising; Advertising Industry

May 2010
Article

Optimal Auction Design and Equilibrium Selection in Sponsored Search Auctions

By: Benjamin Edelman and Michael Schwarz

We characterize the optimal (revenue maximizing) auction for sponsored search advertising. We show that a search engine's optimal reserve price is independent of the number of bidders and independent of the rate at which click-through rate declines over positions. We... View Details

Keywords: Auctions; Revenue; Advertising; Search Technology; Price; Bids and Bidding

30 Nov 2010
Working Paper Summaries

Optimal Auction Design and Equilibrium Selection in Sponsored Search Auctions

Keywords: by Benjamin G. Edelman & Michael Schwarz

March 2012
Article

Advertising Disclosures: Measuring Labeling Alternatives in Internet Search Engines

By: Benjamin Edelman and Duncan S. Gilchrist

In an online experiment, we measure users' interactions with search engines, both in standard configurations and in modified versions with clearer labels identifying search engine advertisements. In particular, for a random subset of users, we change "Sponsored links"... View Details

Keywords: Corporate Disclosure; Online Advertising; Measurement and Metrics; Internet; Search Technology; Education; Labels

2010
Working Paper

Advertising Disclosures: Measuring Labeling Alternatives in Internet Search Engines

By: Benjamin Edelman and Duncan S. Gilchrist

In an online experiment, we measure users' interactions with search engines, both in standard configurations and in modified versions with clearer labels identifying search engine advertisements. In particular, for a random subset of users, we change "Sponsored links"... View Details

Keywords: Online Advertising; Interactive Communication; Corporate Disclosure; Labels; Marketing Strategy; Consumer Behavior; Internet; Search Technology

2010
Working Paper

Optimal Auction Design and Equilibrium Selection in Sponsored Search Auctions

By: Benjamin Edelman and Michael Schwarz

October 2006 (Revised October 2007)
Case

Google Advertising

By: Youngme E. Moon and David Chen

In mid-2006, Google is the number one search engine in America with 99% of its revenues deriving from its simple, text-only advertising services. It is on track to bring in roughly $9.5 billion in advertising revenue in 2006, which would place it fourth among American... View Details

Keywords: Digital Marketing; Disruptive Innovation; Media; Expansion; Internet and the Web; Advertising Industry; United States

Educators

March 2016 (Revised February 2023)
Exercise

Advertising Experiments at RestaurantGrades

By: Michael Luca, Weijia Dai and Hyunjin Kim

Advertising Experiments at RestaurantGrades is an exercise in which students are asked to analyze and make a recommendation on the basis of simulated experimental data. The setting is a hypothetical restaurant review company called RestaurantGrades (RG), which shows... View Details

Keywords: Analysis; Digital Marketing

March 2016 (Revised February 2023)
Teaching Note

Advertising Experiments at RestaurantGrades

By: Michael Luca, Weijia Dai and Hyunjin Kim

Advertising Experiments at RestaurantGrades is an exercise in which students are asked to analyze and make a recommendation on the basis of simulated experimental data. The setting is a hypothetical restaurant review company called RestaurantGrades (RG), which shows... View Details

Keywords: Advertising Campaigns; Marketing; Digital Marketing; Analysis; Performance Effectiveness

March 2016
Supplement

Advertising Experiments at RestaurantGrades

By: Weijia Dai, Hyunjin Kim and Michael Luca

This exercise provides students with a data set consisting of results from a hypothetical experiment, and asks students to make recommendations based on the data. Through this process, the exercise teaches students to analyze, design, and interpret experiments. The... View Details

Keywords: Experimental Methods; Analytics; Web Technology; Marketing; Digital Marketing; Analysis; Performance Effectiveness; Social Media

29 Apr 2013
Working Paper Summaries

Exclusive Preferential Placement as Search Diversion: Evidence from Flight Search

Keywords: by Benjamin G. Edelman & Zhenyu Lai; Publishing; Technology

17 Sep 2007
Research & Ideas

Broadband: Remaking the Advertising Industry

online ad budget is spent on search advertising, which is more effective than banner advertising at driving traffic. The ability to place your ad on the screen exactly where someone is View Details

Keywords: by Julia Hanna; Advertising; Advertising; Advertising

May 2023
Article

Self-Preferencing at Amazon: Evidence from Search Rankings

By: Chiara Farronato, Andrey Fradkin and Alexander MacKay

We study whether Amazon engages in self-preferencing on its marketplace by favoring its own brands (e.g., Amazon Basics) in search. To address this question, we collect new micro-level consumer search data using a custom browser extension installed by a panel of study... View Details

Keywords: Consumer Behavior; E-commerce; Product Positioning; Brands and Branding