Publications

January 2023
Teaching Note

Duolingo: Teaching Languages to the Masses

By: Youngme Moon

Teaching Note for HBS Case 323-016. At the time the case is written, Duolingo is the most popular language learning service in the world. The company has more than 40 million monthly active users, and the company’s total annual revenue has reached $250 million a year.... View Details

Keywords: Marketing; Marketing Strategy; Customer Relationship Management; Acquisition; Retention; Innovation and Invention

Article

Faithful and Customizable Explanations of Black Box Models

By: Himabindu Lakkaraju, Ece Kamar, Rich Caruana and Jure Leskovec

As predictive models increasingly assist human experts (e.g., doctors) in day-to-day decision making, it is crucial for experts to be able to explore and understand how such models behave in different feature subspaces in order to know if and when to trust them. To... View Details

Keywords: Interpretable Machine Learning; Black Box Models; Decision Making; Framework

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April 2013
Article

What Roger Fisher Got Profoundly Right: Five Enduring Lessons for Negotiators

By: James K. Sebenius

Roger Fisher, who died in 2012, enjoyed a remarkable career that modeled one way that an academic, especially in a professional school such as law or business, could make a significant, positive, and lasting difference in the world. Distinctive aspects of his career... View Details

Keywords: Bargaining; Conflict Resolution; Dealmaking; Negotiation; Personal Development and Career; Conflict and Resolution

25 Mar 2008
Working Paper Summaries

Incompatible Assumptions: Barriers to Producing Multidisciplinary Knowledge in Communities of Scholarship

Keywords: by Corinne Bendersky & Kathleen L. McGinn; Education

15 Aug 2023
HBS Case

(Virtual) Reality Check: How Long Before We Live in the 'Metaverse'?

coordinating all the pieces of the ecosystem,” he says. “It's not just a matter of a headset. You also have to have content like games or simulations or social media interaction platforms. We still haven't seen what that killer app is... View Details

Keywords: by Jay Fitzgerald; Technology; Computer; Information Technology

May 2018 (Revised February 2019)
Case

The Powers That Be (Internet Edition): Google, Apple, Facebook, Amazon, and Microsoft

By: Jeffrey F. Rayport, Julia Kelley and Nathaniel Schwalb

As of early 2018, five U.S. technology companies—Google, Apple, Facebook, Amazon, and Microsoft—were among the largest companies in the world. Similarly, three Chinese technology firms—Baidu, Alibaba, and Tencent, or BAT—had emerged as global players due in part to the... View Details

Keywords: Internet and the Web; Business Ventures; Customers; Analytics and Data Science; Safety; Corporate Strategy; Competitive Strategy; Technology Industry

November 2011
Article

Social Strategies That Work

By: Mikolaj Jan Piskorski

Although most companies have collected lots of friends and followers on social platforms such as Facebook, few have succeeded in generating profits there. That's because they merely port their digital strategies into social environments by broadcasting their commercial... View Details

Keywords: Social Platforms; Social Strategies; Social and Collaborative Networks; Customers; Relationships; Business Strategy; Profit

23 May 2016
Research & Ideas

A Little Understanding Motivates Copyright Abusers to Pay Up

obtained from the Internet. Furthermore, many businesses use a third-party designer, whom is presumed to have cleared related rights. Motivating copyright compliance on the Web is complicated by users who don’t know they are violating the... View Details

Keywords: by Michael Blanding; Media & Broadcasting; Publishing

28 Jan 2020
Book

Advanced Leadership Requires More Than Outside-The-Box Thinking

that helped level social divides by providing equal access to useful skills and cultural or educational opportunities to everyone in a city. The leader who envisioned and built this into a leading site with 50 million regular users turned... View Details

Keywords: by Sean Silverthorne

November 2006 (Revised October 2007)
Background Note

A Brief Note on Deferred Taxes: An Analysis Perspective

Provides an overview of accounting for deferred taxes. The primary objective is to provide external users with a basic understanding of deferred taxes. A simple illustrative example is provided, which is followed by a discussion of several important issues likely to be... View Details

Keywords: Accounting; Financial Statements; Taxation; Legal Liability; Valuation

February 2016 (Revised June 2016)
Case

Janalakshmi Financial Services' HR Dilemma

By: Doug J. Chung and Radhika Kak

Janalakshmi Financial Services (JFS), an Indian microfinance institution, had grown rapidly by providing financial products to its main customer base, the urban poor. However, the company was facing several challenges. JFS’s productivity was declining, and it was... View Details

Keywords: Microfinance; Salesforce Management; Compensation and Benefits; Sales; Strategy; Financial Services Industry

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

19 Oct 2009
Research & Ideas

Why Are Web Sites So Confusing?

recommendation systems to suggest to each individual user products or content which might interest him/her, as inferred from their past behavior or the behavior of users with... View Details

Keywords: by Andrei Hagiu & Bruno Jullien

October 2007 (Revised December 2007)
Case

TiVo 2007: DVRs and Beyond

By: David B. Yoffie and Michael Slind

Tom Rogers, CEO of TiVo, had placed multiple strategic bets on his company. In September 2007, that strategy was due for a major test. TiVo was a maker of digital video recorder (DVR) products and a distributor of DVR technology. Rogers believed that macro-trends in... View Details

Keywords: Advertising; Business Model; Television Entertainment; Intellectual Property; Lawsuits and Litigation; Management Analysis, Tools, and Techniques; Distribution; Problems and Challenges; Partners and Partnerships; Research; Internet; Entertainment and Recreation Industry; United States

January 2006 (Revised October 2007)
Background Note

Managing Networked Businesses: Course Overview for Students

By: Thomas R. Eisenmann

Provides an overview for students of the MBA elective course Managing Networked Businesses (MNB). MNB focuses on management challenges in businesses that exhibit network effects. The first section of the note explains that such businesses comprise a large and growing... View Details

Keywords: Business Model; Capital Structure; Business or Company Management; Network Effects; Organizational Design; Business and Government Relations; Social and Collaborative Networks; Competitive Strategy

Article

Reliable Post hoc Explanations: Modeling Uncertainty in Explainability

By: Dylan Slack, Sophie Hilgard, Sameer Singh and Himabindu Lakkaraju

As black box explanations are increasingly being employed to establish model credibility in high stakes settings, it is important to ensure that these explanations are accurate and reliable. However, prior work demonstrates that explanations generated by... View Details

Keywords: Black Box Explanations; Bayesian Modeling; Decision Making; Risk and Uncertainty; Information Technology

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January–February 2025
Article

Want Your Company to Get Better at Experimentation?: Learn Fast by Democratizing Testing

By: Iavor Bojinov, David Holtz, Ramesh Johari, Sven Schmit and Martin Tingley

For years, online experimentation has fueled the innovations of leading tech companies, enabling them to rapidly test and refine new ideas, optimize product features, personalize user experiences, and maintain a competitive edge. The widespread availability and lower... View Details

Keywords: Technological Innovation; AI and Machine Learning; Analytics and Data Science; Product Development; Competitive Advantage