Publications

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2010
Other Unpublished Work

Modeling Passenger Travel and Delays in the National Air Transportation System

Many of the existing methods for evaluating an airline's on-time performance are based on flight-centric measures of delay. However, recent research has demonstrated that passenger delays depend on many factors in addition to flight delays. For instance,... View Details

Keywords: Mathematical Methods; Performance Evaluation; Air Transportation Industry; United States

Research Summary

Overview

Yanhua Bird's research encompasses two streams: (1) entrepreneurship and social innovation — how the design and structure of alternative forms of enterprises influence their activities and success, with a focus on peer-to-peer markets and social enterprises, and (2)... View Details

Keywords: Organizational Behavior; Strategy; Social Evaluation; Entrepreneurship; Social Innovation; Social Movements; Non-market Strategy; Corporate Sustainability

June 2022
Article

The Use and Misuse of Patent Data: Issues for Finance and Beyond

By: Josh Lerner and Amit Seru

Patents and citations are powerful tools for understanding innovation increasingly used in financial economics (and management research more broadly). Biases may result, however, from the interactions between the truncation of patents and citations and the changing... View Details

Keywords: Patents; Analytics and Data Science; Corporate Finance; Research

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Letian Zhang

Letian (LT) Zhang is an assistant professor of business administration in the Organizational Behavior Unit. He teaches in the MBA required curriculum.

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January 2018 (Revised August 2020)
Background Note

Continuous Software Development: Agile's Successor

By: Jeffrey J. Bussgang, Samuel Clemens and Olivia Hull

In recent years, the twin software development methodologies of continuous delivery and continuous deployment have risen to prominence in the start-up world and beyond. These methods have enabled technology companies large and small to accelerate their product... View Details

Karim R. Lakhani

Karim R. Lakhani is the Dorothy & Michael Hintze Professor of Business Administration at the Harvard Business School. He specializes in technology management, innovation, digital transformation and artificial... View Details

Keywords: biotechnology; communications; computer; health care; high technology; information technology industry; internet; pharmaceuticals; software; video games

17 May 2022
News

Delivering a Personalized Shopping Experience with AI

March 2010 (Revised May 2012)
Case

Myelin Repair Foundation: Accelerating Drug Discovery Through Collaboration

By: Karim R. Lakhani and Paul R. Carlile

This case presents the Myelin Repair Foundation's accelerated research collaboration model for drug discovery. It highlights the challenges of building a multi-disciplinary and multi-institutional research collaboration that is attempting to create a treatment for... View Details

Keywords: Research and Development; Intellectual Property; Risk and Uncertainty; Strategic Planning; Collaborative Innovation and Invention; Health Disorders; Pharmaceutical Industry; Biotechnology Industry; Health Industry

2023
Article

Verifiable Feature Attributions: A Bridge between Post Hoc Explainability and Inherent Interpretability

By: Usha Bhalla, Suraj Srinivas and Himabindu Lakkaraju

With the increased deployment of machine learning models in various real-world applications, researchers and practitioners alike have emphasized the need for explanations of model behaviour. To this end, two broad strategies have been outlined in prior literature to... View Details

Keywords: AI and Machine Learning; Mathematical Methods

August 2000 (Revised July 2001)
Case

Laura Martin: Real Options and the Cable Industry

By: Mihir A. Desai and Peter Tufano

CSFB equity research analyst Laura Martin publishes a report on valuing Cox Communications that introduces an innovative approach to valuation. She contends that EBITDA multiple analysis, typical for the cable industry, is flawed because it overlooks the value of the... View Details

Keywords: Valuation; Innovation and Invention; Telecommunications Industry

Roberto Verganti

Roberto Verganti is in the Technology and Operations Management Unit at Harvard Business School. He teaches Design Theory and Practice for the double degree program MS/MBA conducted jointly by the Harvard Business School and the... View Details

Keywords: automotive; computer; consumer products; electronics; fashion; food; furniture; high technology; home appliances; industrial goods; pharmaceuticals; semiconductor; software; telecommunications; textiles

September 2022
Article

In Search of Scholarly Impact

By: Usha C.V Haley, Cary L. Cooper, Andrew J. Hoffman, Tyrone S. Pitsis and Danna Greenberg

This is an introduction to a special issue on the importance and the methods of scholarly impact in real world issues. View Details

Keywords: Research; Higher Education

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2020
Article

Fast Exact Matrix Completion: A Unified Optimization Framework for Matrix Completion

By: Dimitris Bertsimas and Michael Lingzhi Li

We formulate the problem of matrix completion with and without side information as a non-convex optimization problem. We design fastImpute based on non-convex gradient descent and show it converges to a global minimum that is guaranteed to recover closely the... View Details

Keywords: Mathematical Methods

September 2002 (Revised March 2003)
Technical Note

Technical Note on Equity-Linked Consideration, Part 1: All-Stock Deals

By: Carliss Y. Baldwin

What the acquiring company pays for a target in a merger or acquisition is called "consideration." Consideration can be in the form of cash, shares, or a combination of cash and shares. During the 1990s, equity-linked consideration became the dominant method of payment... View Details

Keywords: Price; Acquisition; Business and Shareholder Relations

02 Feb 2016
First Look

February 2, 2016

of accounting research papers draws causal inferences notwithstanding the well-known difficulties in doing so with observational data. While a minority of papers seeks to use quasi-experimental methods to... View Details

Keywords: Sean Silverthorne

September 2014
Case

Crescent Pure

By: John A. Quelch and Alisa Zalosh

Executives from Portland Drake Beverages (PDB) are meeting to determine the appropriate product positioning and advertising campaign for the launch of Crescent Pure, a specialty organic beverage. They have 3 options for positioning: should Crescent Pure be positioned... View Details