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Crowdsourced reviews

To determine whether online consumer reviews influence the way that reputation is formed, Professor Luca has combined reviews from the website Yelp.com with public restaurant data. He has shown that a one-star increase in Yelp ratings results in a 5- to 9-percent... View Details

26 Jan 2016
First Look

January 26, 2016

incremental change, while also seizing new markets where flexibility, autonomy, and experimentation rule the day. Publisher's link: https://www.hbs.edu/faculty/Pages/item.aspx?num=50401 forthcoming European Economic Review Taxation,... View Details

Keywords: Sean Silverthorne

Forthcoming
Article

Bank Risk-Taking and the Real Economy: Evidence from the Housing Boom and Its Aftermath

By: Antonio Falato, Giovanni Favara and David Scharfstein

We present evidence that pressure to maximize short-term stock prices and earnings leads banks to increase risk. We start by showing that banks increase risk when they transition from private to public ownership through a public listing or an acquisition. The increase... View Details

Keywords: Ownership Type; Risk and Uncertainty; Financial Markets; Banks and Banking; Transition; Price

10 Jan 2011
Research & Ideas

Is Groupon Good for Retailers?

may file for an initial public offering by the end of 2011, according to the New York Times. "Groupon has attracted remarkable interest," says Harvard Business School professor Benjamin G. Edelman. "With the economy... View Details

Keywords: by Carmen Nobel; Advertising; Technology

18 Nov 2010
Research & Ideas

GM’s IPO: Back to the Future

On a journey that began 17 months ago, General Motors entered and emerged from bankruptcy to become a private company with Uncle Sam as its largest shareholder. The company reaches another milestone today by offering an initial public... View Details

Keywords: by Staff; Auto

October 2014 (Revised October 2015)
Case

Mobileye: The Future of Driverless Cars

By: David B. Yoffie

Mobileye was an Israeli company, officially headquartered in The Netherlands, which was a Tier 2 supplier to the global automobile industry. After 15 years of building a leading technology for autonomous driving systems, Mobileye emerged in 2014 as one of the most... View Details

Keywords: Driverless Car; Competitive Advantage; Strategy; Market Entry and Exit; Technology; Auto Industry; Semiconductor Industry; Technology Industry; Israel

November 2002 (Revised April 2004)
Case

TCS: An Entrepreneurial Air-Express Company in Pakistan

Introduces Khalid Awan, co-founder of TCS, an entrepreneurial air-express company in Pakistan. Awan has succeeded in building a sizeable company despite serious obstacles, including pressure from the public postal system, an environment prone to corruption, and a... View Details

Keywords: Family Business; Emerging Markets; Entrepreneurship; Leasing; Transportation Industry; United Arab Emirates; Pakistan

March 2023 (Revised May 2025)
Case

On

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

Founded in 2010, in just one decade, the Swiss company On had established itself as a main player in global sports footwear and apparel. Based on an unconventional strategy which one of the founders labeled as “obsessively distinct,” On grew its sales with a compound... View Details

July 2020
Case

Amanda and Kristen: Mented Cosmetics

By: Steven Rogers, Jeffrey J. Bussgang and Alterrell Mills

The co-founders (Black HBS alumnae) of an e-commerce beauty startup explore the unmet needs within the beauty industry. This case study examines the entrepreneurial opportunities that come from identifying an underserved market, specifically within the Black community... View Details

October 2010 (Revised January 2011)
Case

Toyota Recalls (A): Hitting the Skids

By: John A. Quelch, Carin-Isabel Knoop and Ryan Johnson

In the fall of 2009, Toyota Motor Corporation, once revered for its commitment to quality and reliability, faced a highly publicized series of recalls in the United States representing approximately a year's worth of sales in one of its most important markets. While... View Details

Keywords: Communication Strategy; Crisis Management; Brands and Branding; Quality; Public Opinion; Auto Industry; Japan; United States

20 Dec 2006
Op-Ed

Investors Hurt by Dual-Track Tax Reporting

decipher from public filings. Their proposal, which will likely meet fierce opposition from accountants, lawyers, and managers, is a laudable first step in restoring sanity to U.S. corporate profit reporting. When the corporate tax was... View Details

Keywords: by Mihir Desai

30 Jan 2017
Research & Ideas

Vanguard, Trian And The Problem With 'Passive' Index Funds

need to get shareholders more engaged? What shape should the separation of management and ownership take in the twenty-first century?” “We are now in a situation where index investors are the major shareholders in most of the large- and medium-sized View Details

Keywords: by Michael Blanding; Financial Services

Andy Zelleke

Andy Zelleke is the MBA Class of 1962 Senior Lecturer of Business Administration. A member of the General Management unit, he is the Faculty Chair of HBS’ Middle East & North Africa Research Center.

Since Spring 2021, Dr. Zelleke has taught “Unpacking... View Details

Keywords: federal government; professional services; defense; financial services

Article

Making 'Green Giants': Environment Sustainability in the German Chemical Industry, 1950s–1980s

By: Geoffrey Jones and Christina Lubinski

This article examines the evolution of corporate environmentalism in the West German chemical industry between the 1950s and the 1980s. It focuses on two companies, Bayer and Henkel, that have been identified as "green giants," and traces the evolution of their... View Details

Keywords: Business History; Green Business; Regional Strategy; Pollution; Henkel; Bayer; Globalization; History; Chemical Industry; Germany; United States