Publications

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January 2025 (Revised April 2025)
Case

Duolingo: On a 'Streak'

By: Jeffrey F. Rayport, Nicole Tempest Keller and Nicole Luo

In December 2024, Severin Hacker, Co-Founder and Chief Technology Officer of Duolingo, reflected on the remarkable evolution of the language-learning app he helped launch in 2011. As the #1 most downloaded education app in the world, Duolingo had over 100 million... View Details

Keywords: Learning; AI and Machine Learning; Growth and Development Strategy; Motivation and Incentives; Diversification; Business Model; Market Entry and Exit; Technology Industry; Education Industry; United States

October 2006 (Revised February 2010)
Case

Linux vs. Windows

By: Ramon Casadesus-Masanell and Jordan Mitchell

As of 2006, Microsoft is finding that its dominant position in client and server operating systems is under attack from Linux. While Linux has only 3% of the worldwide installed base of PC operating systems, it had captured 20% of the server market by the end of 2005... View Details

Keywords: Business Model; For-Profit Firms; Open Source Distribution; Competitive Strategy; Applications and Software; Value; Technology Industry

Small business lending has remained unchanged for decades, laden with frictions and barriers that prevent many small businesses from accessing the capital they need to succeed. Financial technology, or “fintech,” promises to change this trajectory. In 2010, new fintech... View Details

16 Aug 2011
Working Paper Summaries

The International Politics of IFRS Harmonization

Keywords: by Karthik Ramanna; Accounting

February 2003 (Revised December 2006)
Case

Toys "R" Us (A)

By: Michael G. Rukstad, Dennis A. Yao and Cate Reavis

In 1992, Toys "R" Us, the pioneer of the "category killer" retail format, faced significant competitive threats from mass discounters and warehouse clubs and was losing market share. This case explores the dynamic sustainability of Toys "R" Us's retailing model, its... View Details

Keywords: Risk Management; Competition; Supply and Industry; Power and Influence; Retail Industry; United States

March 2024 (Revised April 2024)
Case

Coursera's Foray into GenAI

By: Suraj Srinivasan, Michael Parzen and Radhika Kak

In early 2023, Maggioncalda, CEO of US EdTech firm Coursera, launched Project Genesis to develop a strategy for incorporating GenAI capabilities into the firm's offerings, asking his teams to focus on value to the firm and cost of implementation. The team identified... View Details

Keywords: Business Model; AI and Machine Learning; Brands and Branding; Business Strategy; Competitive Advantage; Technological Innovation; Education Industry; Technology Industry; United States

Research Summary

Capitalism as a System of Governance

My research interest is in further exploration of the analytic utility of an original conception of capitalism as an indirect, three level system of governance for the economic relationships within political entities, and mostly within nation states. This three level... View Details

Web

Academic Programs | About

Academic Programs Whether on campus, online, or within an intensive certificate program, Harvard Business School combines bold ideas, powerful pedagogy, and collaborative cohort-based learning to deliver unparalleled management education... View Details

28 Dec 2019
Working Paper Summaries

Tech Clusters

Keywords: by William R. Kerr and Frederic Robert-Nicoud

24 Jun 2008
Working Paper Summaries

Bank Structure and the Terms of Lending to Small Businesses

Keywords: by Rodrigo Canales & Ramana Nanda; Banking

2025
Working Paper

An Empirical Examination of Business Climate Alliances: Effective and/or Harmful?

By: Matteo Gasparini and Peter Tufano

This research studies business alliances that seek to address climate change, offering empirical evidence to address claims advanced by alliance supporters and critics. We study eleven major alliances mostly focused on financial services firms and 424 major... View Details

Keywords: Antitrust; Climate Change; Financial Institutions; Competition; Network Effects; Alliances

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May 2022
Article

Coins for Bombs: The Predictive Ability of On-Chain Transfers for Terrorist Attacks

By: Dan Amiram, Evgeny Lyandres and Daniel Rabetti

This study examines whether we can learn from the behavior of blockchain-based transfers to predict the financing of terrorist attacks. We exploit blockchain transaction transparency to map millions of transfers for hundreds of large on-chain service providers. The... View Details

Keywords: Blockchain; Bitcoin; Accounting; AI and Machine Learning; National Security; Governing Rules, Regulations, and Reforms

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This study examines whether we can learn from the behavior of blockchain-based transfers to predict the financing of terrorist attacks. We exploit blockchain transaction transparency to map millions of transfers for hundreds of large on-chain service providers.... View Details

April 2021
Case

Distinct Software

By: Das Narayandas, Arijit Sengupta and Jonathan Wray

Distinct Software (disguised name), a global enterprise software company, is at an important point in its growth trajectory where the luster of its mantra of “grow and win at any cost” has dimmed with increasing competition and margin pressures. To help navigate its... View Details

Keywords: Artificial Intelligence; Marketing; Sales; Performance Productivity; Technological Innovation; AI and Machine Learning

May 1991
Article

Presidential Commitment and the Veto

By: Daniel E. Ingberman and Dennis Yao

A president's power to veto is widely recognized as an important weapon in the struggle with Congress over legislation. In this paper we investigate the effectiveness of the veto weapon with a simple model of presidential powers that incorporates informal institutional... View Details

Keywords: Government Legislation; Laws and Statutes; Financial Markets; Value; Taxation; Conflict and Resolution; Research; Performance Effectiveness; Legal Services Industry

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