Publications

October 2023 (Revised March 2024)
Case

KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing

By: George Serafeim, Siko Sikochi and Namrata Arora

The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000... View Details

Keywords: Clean Tech; Digital; Carbon Credits; Carbon Offsetting; Climate Change; Entrepreneurship; Energy Sources; Environmental Sustainability; Health; Market Design; Business Startups; Transition; Environmental Regulation; Policy; Energy Industry; Consumer Products Industry; Africa; Kenya; Rwanda

2023
Working Paper

Do Active Funds Do Better in What They Trade?

By: Marco Sammon and John J. Shim

We develop two new, simple measures to quantify active fund decisions at the individual position level. The intuition is to separate passive rebalancing induced by flows and position changes from active rebalancing decisions. We find that additive active rebalancing --... View Details

Keywords: Investment Funds; Financial Management

SSRN

June 2024
Supplement

Zeswitz Music (B)

By: Richard S. Ruback and Royce Yudkoff

Pre-Abstract: Instructors should consider the timing of making videos available to students, as they may reveal key case details.
Abstract: In July of 2013, Randy Shayler (HBS, 2012) acquired Zeswitz Music, a musical instrument rental company based in Reading,... View Details

Keywords: Acquisition; Customer Focus and Relationships; Business Strategy; Revenue; Marketing; Music Industry; Retail Industry

November 2010 (Revised May 2014)
Case

Dow's Bid for Rohm and Haas

By: Benjamin C. Esty and David Lane

This case analyzes Dow Chemical Company's proposed acquisition of Rohm and Haas in 2008. The $18.8 billion acquisition was part of Dow's strategic transformation from a slow-growth, low-margin, and cyclical producer of basic chemicals into a higher-growth,... View Details

Keywords: Mergers and Acquisitions; Financial Crisis; Capital Structure; Financial Condition; Financial Management; Contracts; Lawsuits and Litigation; Risk and Uncertainty; Valuation; Chemical Industry

May 2016
Case

The Inexorable Rise of Walmart? 1988—2016

By: John R. Wells and Gabriel Ellsworth

In October 2015, Walmart surprised investors by announcing that it expected flat sales growth for 2015 and growth of only 3% to 4% over the coming three years. Profits would also fall due to significant investments in people and technology. The company’s stock price... View Details

Keywords: Asda; Costco; David Glass; Convenience Stores; Discount Retailing; Dollar Stores; Doug McMillon; E-commerce; Online Retail; General Merchandise; Grocery; Lee Scott; Mike Duke; Multichannel Retailing; Omnichannel; Neighborhood Market; Sam Walton; Sam's Club; Store Formats; Supercenter; Supermarket; Warehouse Clubs; Merchandising; Walmart; Wal-Mart; Globalized Firms and Management; Competitive Strategy; Corporate Strategy; Growth and Development Strategy; Business Units; Business Divisions; Business Growth and Maturation; Business Model; Business Organization; For-Profit Firms; Film Entertainment; Television Entertainment; Banks and Banking; Price; Profit; Revenue; Food; Global Range; Cross-Cultural and Cross-Border Issues; Global Strategy; Business History; Compensation and Benefits; Employees; Human Capital; Labor Unions; Wages; Business or Company Management; Goals and Objectives; Management Succession; Brands and Branding; Product Positioning; Distribution; Supply Chain; Supply Chain Management; Public Ownership; Problems and Challenges; Labor and Management Relations; Strategy; Adaptation; Business Strategy; Competition; Competitive Advantage; Diversification; Expansion; Segmentation; Information Technology; Internet; Mobile Technology; Online Technology; Web; Web Sites; Retail Industry; Food and Beverage Industry; Distribution Industry; Banking Industry; United States; Arkansas; Bentonville

Research Summary

Competitive Dynamics of the Textile-Apparel-Retail Channel

By: Janice H. Hammond

Janice H. Hammond established in 1991 (with Frederick H. Abernathy and John Dunlop of Harvard University and David Weil of Boston University) the Harvard Center for Textile and Apparel Research. Funding provided by the Alfred P. Sloan Foundation has supported the... View Details

October 2014
Article

Do Analysts Add Value When They Most Can? Evidence from Corporate Spinoffs

By: Emilie Feldman, Stuart C. Gilson and Belen Villalonga

This paper investigates how securities analysts help investors understand the value of diversification. By studying the research that analysts produce about companies that have announced corporate spinoffs, we gain unique insights into how analysts portray diversified... View Details

Keywords: Analysts; Spin-offs; Diversification Discount; Information Asymmetry; Value Creation; Business Subsidiaries; Diversification; Corporate Strategy; Investment

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August 2021 (Revised November 2023)
Supplement

Coats: Supply Chain Challenges

By: Willy C. Shih

Coats, the largest thread maker in the world, transformed its business to digital colour measurement so that it could respond better to customer demand in the garment industry for rapid product cycles and more fragmented colour choices. Its embrace of digital colour... View Details

Keywords: Inventory Management; Supply Chain; Inventory; Supply Chain Management; Operations; Apparel and Accessories Industry; Asia

2020
Working Paper

Aggregate and Firm-Level Stock Returns During Pandemics, in Real Time

By: Laura Alfaro, Anusha Chari, Andrew Greenland and Peter K. Schott

We show that unexpected changes in the trajectory of COVID-19 infections predict U.S. stock returns, in real time. Parameter estimates indicate that an unanticipated doubling (halving) of projected infections forecasts next-day decreases (increases) in aggregate U.S.... View Details

Keywords: COVID-19; Stock Returns; Health Pandemics; Stocks; Investment Return; Forecasting and Prediction

June 2020 (Revised February 2021)
Case

Accounting for Leases at American Airlines (A)

By: Jonas Heese, Gerardo Pérez Cavazos and Julia Kelley

In March 2020, as coronavirus reduced demand for air travel, an analyst was forecasting American Airlines’ (American’s) first quarter financial results. To develop a forecast, she needed to familiarize herself with Accounting Standards Update (ASU) 2016-02, “Leases... View Details

Keywords: Accounting; Financial Reporting; Financial Statements; Finance; Governance; Corporate Accountability; Corporate Governance; Governing Rules, Regulations, and Reforms; Governing and Advisory Boards; Leasing; Accounting Industry; Air Transportation Industry; North and Central America; United States

April 1998
Case

Jim Sharpe: Extrusion Technology, Inc. (C)

By: H. Kent Bowen and Barbara Feinberg

Jim Sharpe, president of Extrusion Technology, describes the first five years at the aluminum extrusion company he purchased. He begins with day one as he introduced himself to the employees in 1987 and assured them of the company's continuity. Over the next two years,... View Details

Keywords: Acquisition; Forecasting and Prediction; Cost Management; Profit; Innovation Strategy; Marketing Strategy; Problems and Challenges; Business and Stakeholder Relations; Mining Industry

May 2003
Case

Renault-Nissan Alliance, The

By: Michael Y. Yoshino and Perry Fagan

On Wednesday, May 29, 2002, the board of directors of Renault-Nissan BV (RNBV) met for the first time to discuss the state of the alliance between Renault SA and Nissan Motors-two of the world's largest automakers. RNBV was a 50/50 joint venture company established in... View Details

Keywords: Joint Ventures; Global Strategy; Organizational Culture; Alliances; Business or Company Management; Mergers and Acquisitions; Management Analysis, Tools, and Techniques; Auto Industry

17 Jun 2010
Working Paper Summaries

When Do Analysts Add Value? Evidence from Corporate Spinoffs

Keywords: by Emilie Rose Feldman, Stuart C. Gilson & Belén Villalonga

December 2021
Article

Trade Policy Uncertainty and Stock Returns

By: Marcelo Bianconi, Federico Esposito and Marco Sammon

A recent literature has documented large real effects of trade policy uncertainty (TPU) on trade, employment, and investment, but there is little evidence that investors are compensated for bearing such risk. To quantify the risk premium associated with TPU, we exploit... View Details

Keywords: Trade Policy; Uncertainty; Stock Returns; Risk Premium; Tariff Rates; Portfolio Analysis; Trade; Policy; Risk and Uncertainty; Stocks; Investment Return

SSRN

January 2016
Teaching Note

Groom Energy Solutions: Selling Efficiency

By: Michael W. Toffel, Kira Fabrizio and Stephanie van Sice

This case examines a start-up service provider that helps clients improve the energy efficiency of their factories, warehouses, and commercial and office spaces by integrating and installing lighting, heating, and cooling technologies. The company seeks to double... View Details

Keywords: Energy Efficiency; Energy Efficiency Paradox; Environment; Environmental Strategy; Growth; Energy; Energy Conservation; Entrepreneurship; Environmental Sustainability; Energy Industry

2021
Working Paper

Going by the Book: Valuation Ratios and Stock Returns

By: Ki-Soon Choi, Eric So and Charles C.Y. Wang

We study the use of firms’ book-to-market ratios (B/M) in value investing and its implications for comovements in firms’ stock returns and trading volumes. We show B/M has become increasingly detached from common alternative valuation ratios over time while also... View Details

Keywords: Valuation Ratios; Book-to-market Ratios; Investment Return; Investment; Decision Making

SSRN

11 Feb 2014
News

The Trouble with Sunspots

November 2015
Article

When Doing Good Is Bad in Gift-giving: Mis-predicting Appreciation of Socially Responsible Gifts

By: Lisa A. Cavanaugh, F. Gino and Gavan J. Fitzsimons

Gifts that support a worthy cause (i.e., "gifts that give twice"), such as a charitable donation in the recipient's name, have become increasingly popular. Recipients generally enjoy these gifts, which not only benefit others in need but also make recipients feel good... View Details

Keywords: Perception; Philanthropy and Charitable Giving

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