Research - Global - Harvard Business School

July 2025
Case

Mitsui & Co., Ltd.

By: Ramon Casadesus-Masanell and Akiko Saito

In 2025, Kenichi Hori, President and CEO of Mitsui & Co., Ltd.—one of Japan’s most prominent Sogo Shosha (investment and trading companies with sprawling global footprints)—reflected on the company’s record-breaking profits. Its operations spanned multiple...

May 2025
Teaching Material

On (B): The Cyclon Spins On

By: Ramon Casadesus-Masanell, Karolin Frankenberger, Sascha Mader and Karen Elterman

A follow-up to the On case (723-430), this short case explores how the performance athletic shoe company On expanded its Cyclon subscription and recycling program through 2024, adding two new shoe models to the subscription and a one-time-purchase recyclable T-shirt.

May 2025
Case

A Decade of Corporate Governance Reform in Japan (2013-2023)

By: Charles C.Y. Wang and Akiko Kanno

May 2025 (Revised June 2025)
Case

Netflix Beyond Streaming: Strategies for the Next Era of Entertainment

By: Juan Alcácer and Lorenzo Lucidi

Netflix loses subscribers for the first time in over a decade—can the streaming pioneer reinvent itself before competitors, costs, and churn catch up? In 2022, facing fierce competition and shifting consumer behaviors, Netflix confronts its most critical strategic...

April 2025
Case

Japan Industrial Partners Powers the Leveraged Buyout of Toshiba

By: Brian K. Baik, Joseph Pacelli and James Barnett

The case explores Japan Industrial Partners (JIP) $14 billion takeover of Toshiba Corporation (Toshiba). JIP was a private equity firm that took over the troubled electronics corporation in late 2023. The deal, which had been labeled one...

March 2025 (Revised March 2025)
Case

Good for the Seller, Good for the Buyer and Good for Society: Sampo-yoshi, Sustainability and Trust at ITOCHU

By: Sandra J. Sucher and Bethelehem Y Araya

In 2024, ITOCHU CEO Masahiro Okafuji was at a crossroads. As the thirteenth CEO since ITOCHU’s founding in 1858, he had fueled the company’s growth since 2011 by bringing ITOCHU’s founding philosophy of Sampo-yoshi (good for the seller, good for the buyer and good for...

January 2025
Teaching Material

Knowledge Transfer: Toyota, NUMMI, and GM

By: Willy Shih

Teaching Plan for HBS Case No. 625-003. New United Motors Manufacturing, Inc. (NUMMI) was a joint venture between Toyota and General Motors. It was an opportunity for GM to learn about the Toyota Production System, which was quite different from the mass production...

January 2025 (Revised February 2025)
Teaching Material

A High-Tech Revolution with Chinese Characteristics: China's Drive Towards EV Supremacy

By: William C. Kirby, Daniel Fu and Matthew Ngai

This background note explains and documents the rise of China's EV industry. Moreover, it identifies the challenges facing it and posits several questions about the decisions needed to be made to sustain the industry's global dominance. Would Chinese producers be able...

November 2024
Case

Grand Seiko—The Sleeping Lion

By: Rohit Deshpandé, Nobuo Sato and Akiko Kanno

In 2024, Akio Naito, President of Seiko Watch Corporation, reflected on the global expansion of Grand Seiko, the company’s luxury watch brand. Originally created more than 60 years ago as the luxury model of Seiko watches in Japan, Grand Seiko struggled to...

October 2024
Case

GLIN Impact Capital

By: Ethan Rouen and Akiko Saito

In 2024, the co-founders of the venture capital fund GLIN Impact Capital face a critical inflection point as they consider launching a second, significantly larger impact investment fund in Japan. Founded in 2021 by the three Harvard Business School alumni, GLIN is one...

July 2024
Case

Wizards of the Coast and Magic: The Rebounding

By: Boris Groysberg and Tom Quinn

This case traces the history and growth of the Magic: The Gathering trading card game. From its development in 1993 by tiny studio Wizards of the Coast, to Wizards’ acquisition by toy giant Hasbro in 1999, to its evolution into a billion-dollar brand in 2023,...

July 2024 (Revised October 2024)
Case

Knowledge Transfer: Toyota, NUMMI, and GM

By: Willy Shih

New United Motors Manufacturing, Inc. (NUMMI) was a joint venture between Toyota and General Motors. It was an opportunity for GM to learn about the Toyota Production System, which was quite different from the mass production processes American automakers used at the...

2024
Working Paper

Health, Human Capital Development and the Longevity of Japanese Elites Since 710

By: Tom Nicholas and Hiroshi Shimizu

We examine the lifespan of over 40,000 elites in Japan born between 710 and 1912, including samurai warriors, feudal lords, business, political, cultural, and religious leaders at the apex of the social hierarchy. Japanese elites...

May 2024
Case

Net Protections (A)

By: Ramon Casadesus-Masanell, Nobuo Sato and Akiko Kanno

In Case A, set in early 2017, Net Protections (NP) is the largest Buy Now, Pay Later (BNPL) fintech service in Japan and is experiencing a slowdown in growth of its core product, NP Atobarai. Launched in 2002 as non-membership service,...

March 2024 (Revised April 2025)
Case

TELEXISTENCE Inc.

By: Paul A. Gompers and Akiko Saito

A case about a Japanese robotics startup aiming to enter the U.S. market with its robots that combine AI and human intervention to complete restocking tasks in retail stores.

February 2024
Case

More than Optics: Olympus's Vision to Become a Leading Global MedTech Company

By: David J. Collis and Haisley Wert
In August 2022, CEO Yasuo Takeuchi reflected on Olympus Corporation’s recent transformation from being known as a Japanese consumer camera company to becoming a leading global medical technology (MedTech) company. Over the past dozen years, Takeuchi and prior...

December 2023
Case

Food & Life Companies

By: Forest L. Reinhardt and Akiko Saito

Founded in 1984 in Japan, Food & Life Companies Ltd. (F&LC) operated Sushiro, the largest conveyor belt sushi restaurant chain in Japan, and other types of restaurants that offered sushi and fish cuisine. F&LC was committed to offering high-quality sushi at an...

August 2023
Case

BYD, China, and Global Electric Vehicle Rivalry

By: Cynthia A. Montgomery and Max Hancock

In 2023, BYD, a Chinese electric vehicle (EV) maker, surpassed Tesla to become the world's best-selling EV brand. BYD began selling mobile phone batteries in 1995, acquired a license to sell vehicles in 2002, and spent two decades building its EV brand, growing its...

May 2023 (Revised February 2025)
Teaching Material

Note on Corporate and Government Reskilling Efforts in Japan

By: Christopher Stanton and Akiko Kanno

2023
Book

Deeply Responsible Business: A Global History of Values-Driven Leadership

By: Geoffrey Jones

Corporate social responsibility has entered the mainstream, but what does it take to run a successful purpose-driven business? This book examines leaders who put values alongside profits to showcase the challenges and upside of deeply responsible business. Should...