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- All HBS Web (1,153)
- Faculty Publications (217)
- 24 Apr 2007
- First Look
First Look: April 24, 2007
little impact. Download working paper: http://www.hbs.edu/research/pdf/07-065.pdf What Causes Industry Agglomeration? Evidence from Coagglomeration Patterns Authors:Glenn Ellison, Edward L. Glaeser, and William Kerr Abstract Many... View Details
Keywords: Sean Silverthorne
- 03 Aug 2016
- News
When capitalism only rewards shareholders, it’s time for reform
- 20 Oct 2010
- Op-Ed
Export Competitiveness: Reversing the Logic
of externalities became additional features of the debate. The introduction of market imperfection arguments actually introduced significant complications: specialization in the "wrong" activities, i.e. those with lower levels... View Details
Keywords: by Christian Ketels
protecting online advertisers
Online advertising presents remarkable efficiencies—better targeting, improved measurement, and greater return on investment. Yet there are challenges, including unwanted placements, fraudsters inflating advertising expense, and supplies with significant market... View Details
- March 2007 (Revised April 2011)
- Case
Madam C.J. Walker: Entrepreneur, Leader, and Philanthropist
By: Nancy F. Koehn, Anne Dwojeski, William Grundy, Erica Helms and Katherine Miller
Madam C. J. Walker, who has been credited as the first self-made African-American woman millionaire, created a hair-care empire after years spent as a laundress in St. Louis, Missouri. Decades before the Civil Rights movement, her company gave employment to thousands... View Details
Keywords: Leadership; Business History; Race; Corporate Social Responsibility and Impact; Entrepreneurship; Personal Development and Career; Gender; Philanthropy and Charitable Giving; Saint Louis
Koehn, Nancy F., Anne Dwojeski, William Grundy, Erica Helms, and Katherine Miller. "Madam C.J. Walker: Entrepreneur, Leader, and Philanthropist." Harvard Business School Case 807-145, March 2007. (Revised April 2011.)
- 05 Dec 2019
- News
How Artificial Intelligence Can Set Meaningful Sales Goals
- May 2023
- Supplement
Sian Flowers: Fresher by Sea - Video Supplement
By: Willy C. Shih
The setting for this case is the Sian Flowers, a company headquartered in Kitengela, Kenya that exports roses to predominantly Europe. Because cut flowers have a limited shelf life and consumers want them to retain their appearance for as long as possible, Sian or its... View Details
Keywords: Supply Chain; Supply Chains; Sustainability; Sustainable Agriculture; Sustainability Reporting; Carbon Emissions; Supply Chain Management; Quality; Ship Transportation; Cost Management; Agriculture and Agribusiness Industry; Africa; Kenya; Netherlands; Europe
Shih, Willy C. "Sian Flowers: Fresher by Sea - Video Supplement." Harvard Business School Multimedia/Video Supplement 623-713, May 2023.
- Research Summary
Concentrated Capital Losses and the Pricing of Corporate Credit Risk
In studying the U.S. credit default swap (CDS) market, Professor Siriwardane has discovered that the selling of CDS protection is extremely concentrated, with five sellers accounting for nearly half the market. Further, in contrast to what neoclassical theory... View Details
- 23 Dec 2019
- News
The gender gap in self-promotion
- July–August 2025
- Article
Don’t Let an AI Failure Harm Your Brand
How companies market their AI systems affects the repercussions they face when their products fail. Marketers must promote their AI products with potential failure in mind. To do that, they must first understand consumers’ unique attitudes toward AI. Marketers who... View Details
Keywords: AI and Machine Learning; Brands and Branding; Product Marketing; Consumer Behavior; Attitudes
De Freitas, Julian. "Don’t Let an AI Failure Harm Your Brand." Harvard Business Review 103, no. 4 (July–August 2025).
- 29 Nov 2005
- News
It's the Purpose Brand, Stupid
- March 2009 (Revised September 2010)
- Case
HOYA Corporation (A)
By: W. Carl Kester and Masako Egawa
In 2007, HOYA of Japan must decide whether to change its friendly exchange offer for Pentax into a hostile cash tender offer. A surprising sequence of events had caused a friendly merger agreement to fall apart, resulting in a boardroom coup at Pentax and the... View Details
Keywords: Mergers and Acquisitions; Investment Activism; Corporate Governance; Governance Controls; Governing and Advisory Boards; Negotiation Tactics; Business and Shareholder Relations; Valuation; Japan
Kester, W. Carl, and Masako Egawa. "HOYA Corporation (A)." Harvard Business School Case 209-065, March 2009. (Revised September 2010.)
- December 2015
- Case
The Hain Celestial Group
By: David E. Bell, José B. Alvarez, James Weber and Mary Shelman
Hain Celestial manufactured natural and organic food and personal care products to be sold to retailers of these products. The company had grown successfully and profitably through acquisitions and organically for two decades. In late 2015, Hain faced challenges on... View Details
Bell, David E., José B. Alvarez, James Weber, and Mary Shelman. "The Hain Celestial Group." Harvard Business School Case 516-007, December 2015.
- Article
Act Like a Scientist: Great Leaders Challenge Assumptions, Run Experiments, and Follow the Evidence
By: Stefan Thomke and Gary W. Loveman
Though they’ve been warned for decades about the dangers of overrelying on gut instinct and personal experience, managers keep failing to critically examine—much less challenge—the ideas their decisions are based on. To correct this problem they need to think and act... View Details
Thomke, Stefan, and Gary W. Loveman. "Act Like a Scientist: Great Leaders Challenge Assumptions, Run Experiments, and Follow the Evidence." Harvard Business Review 100, no. 3 (May–June 2022): 120–129.
- 10 Sep 2021
- News
The Evolution of Black Friday Shopping — And What 2021 May Bring
- May 9, 2024
- Article
Business Education Is Broken: Here Are Strategies to Fix It
By: Andrew J. Hoffman
Business schools have lost their way. Students are schooled in a system that, having raised the standard of living for millions of people over centuries, is now facing systemic failures in both the environmental and social domains—failures that market forces cause and,... View Details
Keywords: Education Reform; Business And Society; Climate Change; Equality and Inequality; Environmental Sustainability; Business Education
Hoffman, Andrew J. "Business Education Is Broken: Here Are Strategies to Fix It." Inspiring Minds (May 9, 2024).
- October 2007 (Revised March 2008)
- Case
Dove: Evolution of a Brand
By: John A. Deighton
Examines the evolution of Dove from functional brand to a brand with a point of view after Unilever designated it as a masterbrand, and expanded its portfolio to cover entries into a number of sectors beyond the original bath soap category. The development causes the... View Details
Keywords: History; Expansion; Marketing Strategy; Social Marketing; Digital Marketing; Brands and Branding; Consumer Products Industry; Beauty and Cosmetics Industry
Deighton, John A. "Dove: Evolution of a Brand." Harvard Business School Case 508-047, October 2007. (Revised March 2008.) (request a courtesy copy.)
- Article
Competition for Scarce Resources
By: Peter Eso, Volker Nocke and Lucy White
We model a downstream industry where firms compete to buy capacity in an upstream market that allocates capacity efficiently. Although downstream firms have symmetric production technologies, we show that industry structure is symmetric only if capacity is sufficiently... View Details
Keywords: Competitive Strategy; Natural Environment; Technology; Production; Business Cycles; Forecasting and Prediction; Cost; Demand and Consumers; Industry Structures; Performance Capacity
Eso, Peter, Volker Nocke, and Lucy White. "Competition for Scarce Resources." RAND Journal of Economics 41, no. 3 (Fall 2010): 524–548.
- 2023
- Working Paper
Local Shocks and Internal Migration: The Disparate Effects of Robots and Chinese Imports in the U.S.
By: Marius Faber, Andres Sarto and Marco Tabellini
Do local labor markets adjust to economic shocks through migration? In this paper, we study this question by focusing on two of the most important shocks that hit U.S. manufacturing since the 1990s: Chinese import competition and the introduction of industrial robots.... View Details
Faber, Marius, Andres Sarto, and Marco Tabellini. "Local Shocks and Internal Migration: The Disparate Effects of Robots and Chinese Imports in the U.S." Harvard Business School Working Paper, No. 20-071, December 2019. (Revised February 2023. Also appears in HBS Working Knowledge. Longer NBER working paper version here.)