Publications

15 Dec 2009
First Look

First Look: Dec. 15, 2009

Working PapersThe Global Networks of Multinational Firms Authors:Laura Alfaro and Maggie Chen Abstract In this paper we characterize the topology of global multinational networks and examine the macro and... View Details

Keywords: Martha Lagace

Sara McKinley Torti

Sara Torti is a senior product and operating executive who has focused extensively on creating and scaling technology-based businesses that require a combination of detailed execution, business insight and technical acumen. She has grown products... View Details

February 2023
Article

OTC Intermediaries

By: Andrea L. Eisfeldt, Bernard Herskovic, Sriram Rajan and Emil Siriwardane

We study the effect of dealer exit on prices and quantities in a model of an over-the-counter (OTC) market featuring a core-periphery network with bilateral trading costs. The model is calibrated using regulatory data on the entire U.S. credit default swap (CDS) market... View Details

Keywords: OTC Markets; Intermediaries; Dealers; Credit Default Swaps; Risk Sharing; Financial Markets; Networks; Price; Risk and Uncertainty

24 Mar 2009
First Look

First Look: March 24, 2009

authorities will soon deplete their supply. I evaluate a series of possible responses to this shortage: sharing addresses impedes new Internet applications and does not seem to be scalable. A new numbering system ("IPv6") offers greater capacity, but View Details

Keywords: Martha Lagace

29 Feb 2000
Research & Ideas

Whence IT Value?

This fits pretty well with what we've observed about IT. While the percolation argument makes sense and is appealing, I believe there's something else going on. The jumps in inventory turns and output line up very nicely with the era of View Details

Keywords: by Andrew McAfee

April 2021
Case

ClearChoice Dental Implant Centers

By: Robert S. Kaplan, Ashiana Jivraj and Jane Barrow

The case illustrates the application of value-based health care to dental medicine. ClearChoice Dental Implant Centers was a rapidly-growing network of dentist-owned independent implant clinics. The targeted market included 23 million people, 15% of the US adult... View Details

Keywords: Value-based Health Care; Dental Medicine; Growth and Development Strategy; Expansion; Business Strategy; Customer Value and Value Chain; Customer Focus and Relationships; Health Industry; United States

General Partner, Flybridge Capital Partners

Former entrepreneur turned VC, HBS Senior Lecturer, author of three, dad of three, husband of one, civic leader, and fan of all Boston sports.

Jeffrey J. Bussgang is a Senior... View Details

11 Jul 2007
Working Paper Summaries

Managing Proprietary and Shared Platforms: A Life-Cycle View

Keywords: by Thomas R. Eisenmann; Technology

2021
Working Paper

First Law of Motion: Influencer Video Advertising on TikTok

By: Jeremy Yang, Juanjuan Zhang and Yuhan Zhang

This paper engineers an intuitive feature that is predictive of the causal effect of influencer video advertising on product sales. We propose the concept of m-score, a summary statistic that captures the extent to which a product is advertised in the most engaging... View Details

Keywords: Influencer Advertising; Video Advertising; Computer Vision; Machine Learning; Advertising; Online Technology

SSRN

April 2022 (Revised May 2022)
Case

Mastercard Labs (A) (Abridged)

By: Linda A. Hill, Sunil Gupta, Emily Tedards and Julia Kelley

When Ajaypal (Ajay) Banga became the CEO of Mastercard in 2010, he shifted the company’s competitive focus from card networks to cash itself. Mastercard’s new vision of a “World Beyond Cash” distilled into a three-pronged framework: Grow the core business, Diversify... View Details

January 1990 (Revised June 1995)
Case

Colliers International Property Consultants

By: Nitin Nohria

Describes the origins, organizational structure, management practices, and use of information technology (IT) in Colliers, a real estate network. Colliers provides local firms with a way to maintain local autonomy while gaining national and international coverage.... View Details

Keywords: Property; Organizational Structure; Information Technology; Management Practices and Processes; Partners and Partnerships; Business Model; Mission and Purpose; Business Growth and Maturation; Conflict and Resolution; Quality; Real Estate Industry

Find at Harvard

Teaching Interest

Agribusiness Seminar - Executive Education

By: David E. Bell

In the agribusiness industry, every year brings new trends and challenges. While demand continues to grow, consumer needs shift, production challenges increase, and evolving technology impacts every part of the value chain. The complex... View Details

28 May 2025
News

Harvard Business School Announces 2025-2026 Leadership Fellows

Web

MS/MBA Biotechnology: Life Sciences | MBA

and life science community include, the Harvard Business School (HBS) Health Care Initiative (HCI), HBS Blavatnik Fellowship in Life Science Entrepreneurship, the Harvard Biotech Club, the HBS Health Care Club (HCC), the Harvard Health Innovation View Details

July 2008 (Revised January 2010)
Case

Affinity Labs, Inc.

By: Joseph B. Lassiter III and Elizabeth Kind

In November 2006, Chris Michel left Military.com, which he founded in 1999, to start Affinity Labs, a global network of online communities. That month, Michel raised a Series A round of venture funding and established a partnership with Monster, which he had sold... View Details

Keywords: Mergers and Acquisitions; Business Startups; Entrepreneurship; Demand and Consumers; Partners and Partnerships; Social and Collaborative Networks; Online Technology