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  • August 2008 (Revised July 2011)
  • Case

Consumer Payment Systems — United States

By: Benjamin Edelman and Andrei Hagiu
In 2008, the U.S. consumer payments landscape was characterized by the ongoing prevalence of credit and debit card networks, the decline of checks, the rise of stored value cards, and the growth of new payment methods such as PayPal, Bill Me Later, and decoupled debit.... View Details
Keywords: Borrowing and Debt; Financial Management; Personal Finance; Digital Platforms; Motivation and Incentives; Competitive Strategy; Internet and the Web; United States
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  • 27 Oct 2009
  • First Look

First Look: October 27

case: http://cb.hbsp.harvard.edu/cb/product/210009-PDF-ENG Purchase the B supplement: http://cb.hbsp.harvard.edu/cb/product/210004-PDF-ENG Purchase the C supplement: http://cb.hbsp.harvard.edu/cb/product/210015-PDF-ENG eBay Partner Network (A) View Details
Keywords: Martha Lagace
  • 2022
  • Article

Improving Efficiency and Reducing Costs of MRI-Guided Prostate Brachytherapy Using Time-Driven Activity-Based Costing

By: Nikhil G. Thaker, Rajat J. Kudchadker, James R. Incalcaterra, Tharakeswara K. Bathala, Robert S. Kaplan, Ankit Agarwal, Deborah A. Kuban, Benjamin D. Frank, Prajnan Das, Thomas W. Feeley and Steven J. Frank
Integrated quality improvement (QI) and cost reduction strategies can help increase value in cancer care. We applied standard QI and TDABC methods to improve workflow efficiency and reduce costs for MRI-guided prostate brachytherapy. We constructed process maps,... View Details
Keywords: Brachytherapy; Quality Improvement; Prostate; Time-Driven Activity-Based Costing; Cost Accounting; Health Care and Treatment; Performance Efficiency; Health Industry
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  • 2013
  • Chapter

The Design of Online Advertising Markets

By: Benjamin Edelman
Because the market for online advertising is both new and fast-changing, participants experiment with all manner of variations. Should an advertiser's payment reflect the number of times an ad was shown, the number of times it was clicked, the number of sales that... View Details
Keywords: Misleading and Fraudulent Advertising; Online Advertising; Price; Market Design; Measurement and Metrics; Sales; Motivation and Incentives; Internet and the Web
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  • 05 Oct 2010
  • First Look

First Look: October 5, 2010

accounting "reliability." Broadly, the evidence, by highlighting the influence of standard setters, can broaden our understanding of the political economy of standard setting beyond the role of corporate lobbying. Download the... View Details
Keywords: Sean Silverthorne
  • November–December 2014
  • Article

Accountable? The Problems and Solutions of Online Ad Optimization

By: Benjamin Edelman
Online advertising might seem to be the most measurable form of marketing ever invented. Comprehensive records can track who clicked what ad—and often who saw what ad—to compare those clicks with users' subsequent purchases. Ever-cheaper IT makes this tracking... View Details
Keywords: Online Advertising; Fraud; Optimization; Incentives; Digital Marketing; Contracts; Marketing Strategy; Organizational Design
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  • August 2015
  • Article

Pricing and Efficiency in the Market for IP Addresses

By: Benjamin Edelman and Michael Schwarz
We consider market rules for transferring IP addresses, numeric identifiers required by all computers connected to the Internet. Transfers usefully move resources from lowest- to highest-valuation networks, but transfers tend to cause socially costly growth in the... View Details
Keywords: Externalities; Intermediaries; Market Design; Internet; Web Services Industry; Telecommunications Industry
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  • April 2013 (Revised October 2014)
  • Case

SaferTaxi: Connecting Taxis and Passengers in South America

By: Peter Coles and Benjamin Edelman
SaferTaxi, a taxi booking service in South America must develop its mobilization strategy; that is, it must attract enough passengers and drivers to make its service worthwhile for all. Drivers hesitate to pay for SaferTaxi's smartphones and service unless these will... View Details
Keywords: Taxi Booking; Smartphone; Transportation Networks; Network Effects; Laws and Statutes; South America; Argentina; Brazil; Chile
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  • 09 May 2017
  • First Look

New Research and Ideas, May 9

chains lengthened by 20% following the collapse of a flagship dealer in 2008 and even more for institutions strongly connected to this dealer. Finally, dealers drastically reduced their inventory during the crisis. Publisher's link:... View Details
Keywords: Sean Silverthorne
  • 01 Sep 2023
  • News

Global Outposts Expand HBS’s Intellectual Footprint

learned by Chinese companies going global, and leading through uncertainty. In addition, Professor Benjamin Esty, faculty chair of the Asia-Pacific Research Center, provided a School update to regional... View Details
Keywords: Jennifer Gillespie
  • 05 Jan 2010
  • First Look

First Look: January 5

are not driven by reverse causality. These patterns are not driven solely by common law nations such as the United Kingdom and United States, but also hold in Continental Europe. Download the paper:... View Details
Keywords: Martha Lagace
  • 2002
  • Other Unpublished Work

The Effect of Editorial Discretion Book Promotion on Sales at Amazon.com

By: Benjamin Edelman
A new dataset collected by the author allows estimation of the effect on book sales of promotional listing on Amazon's editorial discretion pages. Following Goolsbee and Chevalier (2001), sales quantities are inferred from sales rank data freely available on Amazon's... View Details
Keywords: Online Advertising; Sales; Marketing Strategy; Web Sites; Competition; Books
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  • January 5, 2012
  • Article

Internet Protocol Numbers and the American Registry for Internet Numbers: Suggested Guidance for Bankruptcy Trustees, Debtors-in-Possession, and Receivers

By: Stephen Ryan, Benjamin Edelman and Matthew Martel
Bankruptcy trustees, debtors-in-possession, and receivers are seeing an increase in efforts to sell Internet Protocol (IP) addresses, also referred to "IP Numbers." IP Numbers are the unique numeric identifiers associated with computers connected to the Internet. While... View Details
Keywords: Insolvency and Bankruptcy; Internet; Sales; Value; Policy; Contracts
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  • February 2010 (Revised December 2010)
  • Case

Google Inc. (Abridged)

By: Benjamin Edelman and Thomas R. Eisenmann
Describes Google's history, business model, governance structure, corporate culture, and processes for managing innovation. Reviews Google's recent strategic initiatives and the threats it poses to Yahoo, Microsoft, and others. Asks what Google should do next. One... View Details
Keywords: Business Model; Corporate Entrepreneurship; Corporate Governance; Organizational Culture; Organizational Structure; Competitive Strategy; Search Technology; Web Services Industry
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  • 25 May 2010
  • First Look

First Look: May 25

(revised) Authors:Itai Ashlagi, Benjamin G. Edelman, and Hoan Lee Abstract We model competing auctions for online advertising, with attention to the participation costs that limit advertisers' interest in... View Details
Keywords: Martha Lagace
  • Web

Entrepreneurial Management Awards & Honors - Faculty & Research

for for work on Relationships in Finance, 2009–2014. Thomas R. Eisenmann : Won a 2011 European Case Clearing House (ecch) Award in the Strategy and General Management category for his case with Benjamin G.... View Details
  • 27 May 2009
  • First Look

First Look: May 27, 2009

calibration, the model explains 58% of the log variance of income per worker. This figure should be compared to the 42% success rate of the usual model. Online Advertising: Rustlers and Sheriffs in the New Wild West Author:Benjamin G.... View Details
Keywords: Martha Lagace
  • Web

Technology & Operations Management Awards & Honors - Faculty & Research

Privacy Risks of Algorithmic Recourse.” Michael Lingzhi Li : Named Edelman Laureate in 2022 by the Institute for Operations Research and the Management Sciences (INFORMS) for “Data-Driven COVID-19 Vaccine... View Details
  • 22 Jun 2010
  • First Look

First Look: June 22

  PublicationsPathologies of Online Display Advertising Marketplaces Author:Benjamin Edelman Publication:ACM Sigecom Exchanges, June 2010 Abstract Much has been written about online search advertising, where Google enjoys 90% plus market... View Details
Keywords: Martha Lagace
  • 19 Jan 2016
  • First Look

January 19, 2016

emphasize users over producers. Large parts of the knowledge economy now routinely rely on users, communities, and open innovation approaches to solve important technological and organizational problems. This view of innovation, pioneered View Details
Keywords: Sean Silverthorne