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June 2025
Case

Vail Resorts: Responding to Activist Pressure (A)

By: Benjamin C. Esty and Edward A. Meyer

On January 27, 2025, the head of a relatively small hedge fund named Late Apex Partners sent a highly critical letter to the board of directors of Vail Resorts, the world’s largest ski resort operator. In his letter, and the 88-slide presentation that accompanied his... View Details

Keywords: Corporate Finance; Capital Budgeting; Corporate Governance; Competitive Advantage; Competitive Strategy; Leading Change; Valuation; Investment Activism; Climate Change; Management Succession; Financial Management; Risk Management; Sports Industry; Entertainment and Recreation Industry; Travel Industry; United States; Australia; Canada

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

May 2025
Background Note

Social Enterprise in Latin America

By: Brian L. Trelstad and Karina Souza

This research note provides an overview of the social enterprise ecosystem in Latin America, exploring current dynamics across key markets, including country-specific insights on Brazil, Mexico, Argentina, Colombia, Chile, and Central America. In a region characterized... View Details

May 2025
Supplement

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. View Details

May 2025
Case

'Net Zero in Action': Impact Investing at the McKnight Foundation

By: Lauren Cohen, Christina R. Wing and Sophia Pan

Elizabeth McGeveran, Vice President of Investments at the McKnight Foundation, reflected on how to effectively advance the organization’s net-zero strategy. The foundation had committed 10% of its endowment to building a portfolio of impact investments and was among... View Details

April 2025
Teaching Note

Aramco: Navigating the Energy Transition

By: Tarun Khanna and Samir Junnarkar

Teaching Note for HBS Case No. 725-358. View Details

Keywords: Energy Transmission; Oil ＆ Gas; Economic Diversification; Corporate Strategy; Leadership; Business Strategy; Goals and Objectives; Transition; Environmental Sustainability; Diversification; Energy Industry; Saudi Arabia

April 2025
Teaching Note

Allbirds: Decarbonizing Fashion (A) and (B)

By: Michael W. Toffel, Ken Pucker and Stacy Straaberg

Teaching Note for HBS Case Nos. 622-024, 625-004, 625-005, and 625-702. The Allbirds: Decarbonizing Fashion (A) case introduces Allbirds as a footwear startup not only focused on simple design, comfort, and sustainable natural materials but on decarbonizing the wider... View Details

April 2025
Supplement

Allbirds: Decarbonizing Fashion PowerPoint Supplement

By: Michael W. Toffel, Ken Pucker and Stacy Straaberg

The Allbirds: Decarbonizing Fashion (A) case introduces Allbirds as a footwear startup not only focused on simple design, comfort, and sustainable natural materials but on decarbonizing the wider fashion industry. Background material highlights the growing... View Details

Keywords: Decarbonization; Climate Impact; Environmental Strategy; Innovation; Product Design; Supply Chain Management; Innovation Strategy; Innovation and Management; Product Development; Climate Change; Environmental Management; Environmental Sustainability; Apparel and Accessories Industry; Fashion Industry; United States; California

March 2025
Case

Calyx Global: Rating Carbon Credits

By: Michael W. Toffel and Adam Chen

This case describes how rating agencies and other organizations are seeking to improve the quality of carbon credits sold in the voluntary carbon market to organizations seeking to use them to supplement their internal decarbonization efforts to meet their net zero... View Details

Keywords: Service Design; Certification; Auditing; Auditor Reputation; Carbon Credits; Carbon; Rating Agency Disagreement; Ratings; Climate Change; Business Model; Environmental Sustainability; Corporate Social Responsibility and Impact; Conflict of Interests; Reputation; Business Strategy

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... View Details

Keywords: Sustainability; Trust; Profit; Growth and Development Strategy; Organizational Change and Adaptation; Mission and Purpose; Corporate Social Responsibility and Impact; Environmental Sustainability; Japan

March 2025
Case

The Changing Climate on Wall Street

By: Clayton S. Rose, Maxim Pike Harrell and Michael Norris

Increasing and conflicting regulatory requirements and political pressures regarding climate change tested the leaders of U.S. financial institutions, as they struggled to determine how best to comply while managing their business and its risks. In October 2024,... View Details

February 2025
Tutorial

Preparing Business Leaders for an Era of Climate Instability: Understanding and Managing Physical Climate Risk

By: Michael W. Toffel and Spencer Glendon

In this compelling video, Spencer Glendon, founder of Probable Futures and Executive Fellow at Harvard Business School, describes the profound implications of climate change for businesses, the economy, and societies around the world. Drawing from his background in... View Details

Keywords: Modeling; Climate Change; Adaptation; Risk and Uncertainty; Risk Management; Forecasting and Prediction

2025
Article

Educating Students and Professionals on the Business Implications of Climate Change

By: Michael W. Toffel

As climate change poses unprecedented challenges and opportunities, the private sector must play a pivotal role in both adaptation and mitigation efforts. This article discusses the new Harvard Business School Online course, Business and Climate Change, designed to... View Details

Keywords: Climate Impact; Online Courses; Online Education; Decarbonization; Mitigation Policies; Climate Risk; Climate Change; Risk Management; Science; Policy; Business Education; Adaptation

2025
Chapter

Sustainability and Green Business in Latin America

By: Geoffrey Jones

This chapter argues that since the nineteenth century capitalism has created much wealth, but at the cost of massive ecological destruction, which has been particularly severe in Latin America. During the first global economy before 1929, considerable wealth was... View Details

Keywords: Environmental Sustainability; Business History; Globalization; Economic Growth; Latin America

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January 2025
Supplement

Hippo: Weathering the Storm of the Home Insurance Crisis (B)

By: Lauren Cohen, Grace Headinger and Sophia Pan

Rick McCathron, CEO of Hippo, was optimistic about the InsurTech's path to profitability after navigating the financial uncertainties of 2022. By bundling their home insurance services with third-parties and established insurance incumbents, Hippo was adopting a... View Details

January 2025
Teaching Note

Vytal: Packaging-as-a-Service

By: George Serafeim, Michael W. Toffel and Stacy Straaberg

Teaching Note for HBS Case No. 124-007. The Germany-based startup Vytal operated the largest digital-native reusable packaging-as-a-service network globally, having raised nearly €15 million, established a large network of restaurant partners, and prevented the use of... View Details

January 2025 (Revised April 2025)
Case

Blue Frontier: Disrupting Air Conditioning

By: Rosabeth Moss Kanter and Jacob A. Small

Serial entrepreneur Daniel Betts founded Blue Frontier in South Florida to offer a climate-friendly solution to increase air conditioning efficiency and dehumidify using new technology he developed. Backed by significant venture capital, Blue Frontier had to choose... View Details

Keywords: Entrepreneurship; Climate Change; Environmental Sustainability; Technological Innovation; Market Entry and Exit; Performance Efficiency; Business Strategy; Florida

January 2025
Case

A Tiger in the Tank: Exxon Sues Investors

By: Clayton S. Rose, Sarah Sasso and James Weber

In June 2024, investors were trying to make sense of ExxonMobil’s (Exxon) lawsuit against two impact investors, Arjuna Capital (Arjuna) and Follow This, that had just been dismissed by the U.S. District Court of Northern Texas. Exxon’s suit challenged the rights of two... View Details

December 2024 (Revised January 2025)
Case

Balancing Returns and Responsibilities at Raya Partners

By: Arthur Segel, Ephraim Mernick, Derek C. M. van Bever and Olivia Barba

Raya Partners, a private equity firm, faces a crucial decision regarding Asa Specialty Coatings Company (ASCC). The dilemma involves shifting ASCC's manufacturing operations to Mexico, a move that would boost profitability and reduce emissions but result in significant... View Details

Keywords: Factories, Labs, and Plants; Communication Strategy; Private Equity; Job Cuts and Outsourcing; Corporate Social Responsibility and Impact; Environmental Sustainability; Values and Beliefs; Financial Services Industry; Manufacturing Industry; Mexico; Vermont

November 2024
Case

Fyffes International SA

By: David E. Bell, Damien McLoughlin and Tonia Labruyère

Helge Sparsoe, CEO of Fyffes since 2020, had taken the tropical produce importer and distributor back to a path of stable level of profitability since he joined in 2020. He was now thinking about next steps for the business, which mainly traded in bananas. He was... View Details

Keywords: Plant-Based Agribusiness; Change Management; Environmental Sustainability; Brands and Branding; Demand and Consumers; Supply Chain; Competition; Price; Value Creation; Agriculture and Agribusiness Industry; Food and Beverage Industry; Switzerland; United Kingdom; Republic of Ireland; Colombia; Guatemala; Costa Rica; Ecuador

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