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

Article

Design of Search Engine Services: Channel Interdependence in Search Engine Results

By: Benjamin Edelman and Zhenyu Lai

The authors examine prominent placement of search engines' own services and effects on users' choices. Evaluating a natural experiment in which different results were shown to users who performed similar searches, they find that Google's prominent placement of its... View Details

Keywords: Search Engine; Organic Search; Sponsored Search Advertising; User Interface; Channel Substitution; Search Technology; Consumer Behavior; Online Advertising

Web

Business History - Faculty & Research

Business History Business History 2014 Book Business History By: Walter A. Friedman and Geoffrey Jones This volume contains a selection of 42 foundational articles on the discipline of business history written between 1934 and the present day View Details

2014
Working Paper

~To Groupon or Not to Groupon: The Profitability of Deep Discounts

By: Benjamin G. Edelman

We examine the profitability and implications of online discount vouchers, a relatively new marketing tool that offers consumers large discounts when they prepay for participating firms' goods and services. Within a model of repeat experience good purchase, we examine... View Details

Keywords: Voucher Discounts; Groupon; Experience Goods; Repeat Purchase; Online Advertising; Price; Profit; Marketing Strategy; Retail Industry

SSRN

August 2015
Article

Price Coherence and Excessive Intermediation

By: Benjamin Edelman and Julian Wright

Suppose an intermediary provides a benefit to buyers when they purchase from sellers using the intermediary's technology. We develop a model to show that the intermediary would want to restrict sellers from charging buyers more for transactions it intermediates. With... View Details

Keywords: Intermediaries; Platforms; Two-Sided Markets; Vertical Restraints; Two-Sided Platforms

Web

Social Enterprise - Faculty & Research

better stakeholder engagement and transparency around CSR performance, are important in reducing capital constraints. The results are further confirmed using an instrumental variables and a simultaneous equations approach. Finally, we show that the relation is driven... View Details

June 2014
Article

Pitfalls and Fraud in Online Advertising Metrics: What Makes Advertisers Vulnerable to Cheaters, and How They Can Protect Themselves

By: Benjamin Edelman

How does online advertising become less effective than advertisers expect and less effective than measurements indicate? The current research explores problems that result, in part, from malfeasance by outside perpetrators who overstate their efforts to increase their... View Details

Keywords: Online Advertising; Measurement; Mismeasurement; Fraud; Invisible; Digital Marketing; Misleading and Fraudulent Advertising; Marketing Strategy

Web

AASU50 - Alumni

the following decades—students who were of Harvard Business School, not simply in it, and helped to shape its future. Clifford E. Darden, MBA 1969, DBA 1982 Don Harmon, MBA 1970 Grover P. Walker, MBA 1971 Matthew Augustine, Jr., MBA 1971 Charles V. Bush, MBA 1972 Kelly... View Details

Web

Finance Awards & Honors - Faculty & Research

Comparative-Advantage Approach to Government Debt Maturity” with Samuel G. Hanson and Jeremy C. Stein ( Journal of Finance , August 2015). Elisabeth Kempf : Awarded Best EFA-DT Paper in 2016 by the European... View Details

Web

Faculty & Researchers - Managing the Future of Work

de Chalendar. Managing Talent Pipelines in the Future of Work , Harvard Business School case, 2019. With William R. Kerr, Manjari Raman and Carl Kreitzberg. The Caring Company: How Employers Can Cut Costs And Boost Productivity By Helping... View Details

Web

Bibliography | Baker Library | Bloomberg Center | Harvard Business School

Skip to Main Content Lehman Brothers Collection Resources Baker Library Collections Corporate Reports Collection R. G. Dun & Co. Credit Reports HBS Cases Baker Old Class Collection Related Archival Collections Bibliography Site Credits... View Details

Article

Towards a Bill of Rights for Online Advertisers

By: Benjamin Edelman

Online advertising presents remarkable efficiencies—better targeting, improved measurement and greater return on investment. Yet there are challenges, particularly when networks of intermediaries place ads through convoluted relationships, and all the more so when... View Details

Keywords: Online Advertising; Rights; Measurement and Metrics; Investment Return; Negotiation; Networks; Problems and Challenges; Performance Efficiency; Law; Advertising Industry

Web

Research - Behavioral Finance & Financial Stability

research here . Related Themes: Credit Markets More Info The Decline of Big-Bank Lending to Small Business: Dynamic Impacts on Local Credit and Labor Markets By: Brian S. Chen, Samuel G. Hanson & Jeremy C. Stein MAR 2017 This paper... View Details

January–February 2011
Article

Adverse Selection in Online 'Trust' Certifications and Search Results

By: Benjamin Edelman

Widely used online "trust" authorities issue certifications without substantial verification of recipients' actual trustworthiness. This lax approach gives rise to adverse selection: the sites that seek and obtain trust certifications are actually less trustworthy than... View Details

Keywords: Online Advertising; Governing Rules, Regulations, and Reforms; Policy; Safety; Trust; Internet; Search Technology; Web Sites

2009
Article

Adverse Selection in Online 'Trust' Certifications

By: Benjamin Edelman

Widely used online "trust" authorities issue certifications without substantial verification of recipients' actual trustworthiness. This lax approach gives rise to adverse selection: the sites that seek and obtain trust certifications are actually less trustworthy than... View Details

Keywords: Online Technology; Web Sites; Trust; Governance Compliance; Value; Complexity

2008
Working Paper

CPC/CPA Hybrid Bidding in a Second Price Auction

By: Benjamin Edelman and Hoan Lee

We develop a model of online advertising in which each advertiser chooses from multiple advertising measurement metrics—paying either for each click on its ads (CPC), or for each purchase that follows an ad-click (CPA). Our analysis extends classic auction results by... View Details

Keywords: Online Advertising; Auctions; Bids and Bidding; Measurement and Metrics; Quality; Mathematical Methods; Web Sites

Article

Priced and Unpriced Online Markets

By: Benjamin Edelman

With forces both supporting and opposing zero prices, typical Internet-related activities—like surfing the web, web searches, and e-mail, along with behind-the-scenes practices like domain names and the allocation of IP (Internet Protocol) addresses—present a natural... View Details

Keywords: Cost vs Benefits; Price; Market Transactions; Service Operations; Internet

November 2011 (Revised October 2014)
Case

Attack of the Clones: Birchbox Defends Against Copycat Competitors

By: Peter A. Coles and Benjamin Edelman

Birchbox offers trial-sized beauty products delivered monthly by mail—attracting rave reviews. Seeing the success of this model, numerous "copycat" clones seek to offer the same service. Many of these copycats focus on non-U.S. countries, but others are challenging... View Details

Keywords: Competition; Competitive Strategy