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  • 2018
  • Book

A Crisis of Beliefs: Investor Psychology and Financial Fragility

By: Nicola Gennaioli and Andrei Shleifer
The collapse of Lehman Brothers in September 2008 caught markets and regulators by surprise. Although the government rushed to rescue other financial institutions from a similar fate after Lehman, it could not prevent the deepest recession in postwar history. A... View Details
Keywords: Financial Fragility; Economic Risk; Investor Behavior; Behavioral Economics; Financial Crisis; Risk and Uncertainty; Financial Markets; Investment; Values and Beliefs; United States
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  • August 28, 2018
  • Article

How Intermittent Breaks in Interaction Improve Collective Intelligence

By: Ethan Bernstein, Jesse Shore and David Lazer
People influence each other when they interact to solve problems. Such social influence introduces both benefits (higher average solution quality due to exploitation of existing answers through social learning) and costs (lower maximum solution quality due to a... View Details
Keywords: Transparency; Social Influence; Collective Intelligence; Interaction; Problem Solving; Collaboration; Intermittant; Breaks; Always On; Communication Technologies; Communication; Design; Information; Management; Leadership; Organizational Design; Organizational Structure; Performance; Social and Collaborative Networks; Information Technology
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  • July–August 2018
  • Article

When Technology Gets Ahead of Society

By: Tarun Khanna
New technologies can be unsettling for industry incumbents, regulators, and consumers, because norms and institutions for dealing with them don’t yet exist. Interestingly, businesspeople in emerging economies face similar challenges: The rules are unclear and... View Details
Keywords: Technological Innovation; Society; Situation or Environment; Infrastructure; Entrepreneurship; Performance Effectiveness; Cooperation
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  • April 2014
  • Article

The Limits of Scale: Companies That Get Big Fast Are Often Left Behind. Here's Why.

By: Hanna Halaburda and Felix Oberholzer-Gee
The value of many products and services rises or falls with the number of customers using them; the fewer fax machines in use, the less important it is to have one. These network effects influence consumer decisions and affect companies' ability to compete. Strategists... View Details
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  • April 2008 (Revised September 2008)
  • Case

Shareholder Activists at Friendly Ice Cream (A)

By: Fabrizio Ferri, V.G. Narayanan and James Weber
Two activist investors, one a founder and one a hedge-fund manager, seek to improve board oversight at a chain restaurant company. Prestley Blake founded Friendly Ice Cream in 1935 with his brother, and the two created a chain of full-service restaurants. In 1979 they... View Details
Keywords: Investment Activism; Governing and Advisory Boards; Lawsuits and Litigation; Business or Company Management; Business and Shareholder Relations; Conflict of Interests; Food and Beverage Industry; United States
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  • 2006
  • Working Paper

On the Origin of Shared Beliefs (and Corporate Culture)

By: Eric J. Van den Steen

This paper shows why members of an organization often share similar beliefs. I argue that there are two mechanisms. First, when performance depends on making correct decisions, people prefer to work with others who share their beliefs and assumptions, since such... View Details

Keywords: Organizational Culture; Employees; Values and Beliefs; Mathematical Methods
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  • 23 Oct 2008
  • Working Paper Summaries

Economic Impacts of Immigration: A Survey

Keywords: by Sari Pekkala Kerr & William R. Kerr
  • Research Summary

A Consistent Weighted Ranking Scheme with an Application to NCAA College Football Rankings (with Chaim Fershtman and Neil Gandal)

The NCAA college football ratings, in which the so-called national champion is determined, has been plagued by controversies the last few years. The difficulty arises because there is a need to make a complete ranking of teams even though each team has a different... View Details
  • March–April 2025
  • Article

Getting Value from Digital Technologies

By: Frank Cespedes and Georg Krentzel
Companies need digital technologies in an omni-channel buying world where online and in-person interactions are complements, not either/or substitutes. Multi-channel hybrid sales solutions are required, but what are the key requirements for using the available... View Details
Keywords: Sales; Technology Adoption; Competitive Advantage
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  • August 2024
  • Article

Partisans neither Expect nor Receive Reputational Rewards for Sharing Falsehoods over Truth Online.

By: Isaias Ghezae, Jillian J. Jordan, Izzy Gainsburg, Mohsen Mosleh, Gordon Pennycook, Robb Willer and David Rand
A frequently invoked explanation for the sharing of false over true political information is that partisans are motivated by their reputations. In particular, it is often argued that by indiscriminately sharing news that is favorable to one’s political party,... View Details
Keywords: Political Ideology; Reputation; Communication Intention and Meaning; Social Media; News
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  • March 2022 (Revised July 2022)
  • Case

Nexleaf Analytics: Saving the World Using the Internet of Things

By: Frank Nagle
In 2019, a decade after co-founding Nexleaf Analytics, CEO Nithya Ramanathan faced an important decision that would impact the ability of the small, but growing, not-for-profit organization to thrive for another decade. Their sensor technologies and big data analytics... View Details
Keywords: Corporate Strategy; Collaborative Innovation and Invention; Technological Innovation; Nonprofit Organizations; Competitive Strategy; Patents; Expansion; Information Technology; Health Industry; Information Industry; Medical Devices and Supplies Industry; Technology Industry
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  • Article

Analyzing Scrip Systems

By: Kris Johnson, David Simchi-Levi and Peng Sun
Scrip systems provide a nonmonetary trade economy for exchange of resources. We model a scrip system as a stochastic game and study system design issues on selection rules to match potential trade partners over time. We show the optimality of one particular rule in... View Details
Keywords: ＂Repeated Games＂; Stochastic Trust Game; Dynamic Program; P2P Lending; Scrip Systems; Artificial Currency; Non-monetary Trade Economies; Marketplace Matching; Currency; Operations; Game Theory
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  • 27 Jun 2005
  • Research & Ideas

Asian and American Leadership Styles: How Are They Unique?

business leaders adopted already, and which styles are likely to be most successful in the future? In a talk in Kuala Lumpur on June 15 at the invitation of The Star/BizWeek publication and the Harvard Club of Malaysia, Mills explained the differences and View Details
Keywords: by D. Quinn Mills
  • 03 Mar 2011
  • Research & Ideas

HBS Faculty on Revolution in the Middle East and North Africa

similarities in the uprisings that have gripped the region, every country is unique. The histories, perspectives, and needs of people across the region differ, and we need to tailor our approach country by country. For example, too strong... View Details
Keywords: Re: Deepak Malhotra; Energy; Utilities
  • 01 Dec 2023
  • News

The Imposter Among Us

Edited by Jen McFarland Flint; Illustrations by Peter Arkle It was their rst day at Harvard and like the rest of his cohort, Edgar Wallner (PMD 22, 1971) will never forget meeting Robert Gaines-Cooper. Frankly, it would have been difficult to miss the Englishman, who... View Details
Keywords: Business Schools & Computer & Management Training; Educational Services
  • 30 Jun 2022
  • HBS Case

Peloton Changed the Exercise Game. Can the Company Push Through the Pain?

off by the original products’ cost. In August 2021, the company dropped the original bike’s price to $1,495; the treadmill that was still on the market cost $2,495, with a similar name but not the higher price of its recalled sister... View Details
Keywords: by Lane Lambert; Media & Broadcasting; Health; Bicycle
  • 30 Sep 2009
  • Working Paper Summaries

Breakthrough Inventions and Migrating Clusters of Innovation

Keywords: by William R. Kerr; Technology
  • September 2022
  • Article

Loneliness Versus Distress: A Comparison of Emotion Regulation Profiles

By: Alyssa J. Tan, Vincent Mancini, James J. Gross, Amit Goldenberg, Johanna C. Badcock, Michelle H. Lim, Rodrigo Becerra, Ben Jackson and David A. Preece
Loneliness, a negative emotion stemming from the perception of unmet social needs, is a major public health concern. Current interventions often target social domains but produce small effects and are not as effective as established emotion regulation (ER)-based... View Details
Keywords: Emotions
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  • March 2022
  • Article

Learning to Rank an Assortment of Products

By: Kris Ferreira, Sunanda Parthasarathy and Shreyas Sekar
We consider the product ranking challenge that online retailers face when their customers typically behave as “window shoppers”: they form an impression of the assortment after browsing products ranked in the initial positions and then decide whether to continue... View Details
Keywords: Online Learning; Product Ranking; Assortment Optimization; Learning; Internet and the Web; Product Marketing; Consumer Behavior; E-commerce
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  • 12 Apr 2022
  • Book

Racism, Colonialism, and Britain's Legacy of Violence

Britain’s 20th century empire was the largest in human history, with a quarter of the world’s land and nearly 700 million people. Yet the empire drew its strength from violence. That’s the conclusion Harvard Business School Professor Caroline Elkins draws in her new... View Details
Keywords: by Avery Forman