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Show Results For
- All HBS Web
(3,785)
- People (6)
- News (652)
- Research (2,663)
- Events (44)
- Multimedia (43)
- Faculty Publications (1,484)
- Forthcoming
- Article
Passive Ownership and Price Informativeness
By: Marco Sammon
I show that passive ownership negatively affects the degree to which stock prices anticipate earnings announcements. Estimates across several research designs imply that the rise in passive ownership over the last 30 years has caused the amount of information... View Details
Keywords: Passive Ownership; ETFs; Market Efficiency; Price; Investment Funds; Stocks; Communication
Sammon, Marco. "Passive Ownership and Price Informativeness." Management Science (forthcoming). (Pre-published online September 17, 2024.)
- 2020
- Working Paper
Demystifying the Math of the Coronavirus
By: Elon Kohlberg and Abraham Neyman
We provide an elementary mathematical description of the spread of the coronavirus. We explain two fundamental relationships: How the rate of growth in new infections is determined by the “effective reproductive number” and how the effective reproductive number is... View Details
Kohlberg, Elon, and Abraham Neyman. "Demystifying the Math of the Coronavirus." Harvard Business School Working Paper, No. 20-112, April 2020. (Revised May 2020.)
- 2012
- Article
When Does the Glue of Social Ties Dissolve? Syndication Ties and Performance Cues in Withdrawals from Venture Capital Syndicates, 1985-2009
By: Pavel Zhelyazkov
The present study integrates the economic and social perspectives on the stability of collaboration by exploring how performance cues interact with interorganizational embeddedness in affecting firms' withdrawals from venture capital coinvestment syndicates. It finds... View Details
- September 1992 (Revised October 1992)
- Case
Acid Rain: The Southern Co. (B)
In addition to the issues of expected cost minimization elucidated in Acid Rain: The Southern Co. (A), problems involving regulatory uncertainty are critical to the firm's Clean Air Act compliance strategy. The regulatory uncertainty affects, and is affected by, the... View Details
Keywords: Energy Generation; Business Strategy; Environmental Sustainability; Cost vs Benefits; Risk and Uncertainty; Strategic Planning; Investment Return; Government Legislation; Wastes and Waste Processing; Business and Government Relations; Utilities Industry; Energy Industry; United States
Reinhardt, Forest L. "Acid Rain: The Southern Co. (B)." Harvard Business School Case 793-040, September 1992. (Revised October 1992.)
- 01 Oct 2013
- News
Lehman Brothers Plus Five: Have We Learned from Our Mistakes?
- 09 Apr 2021
- News
The Power of Why: Unlocking a Curious Mind
- January 1995
- Background Note
Note on Foreign Direct Investment
By: Debora L. Spar
Between 1985 and 1990, the global economy witnessed an unprecedented surge in flows of foreign direct investment (FDI). This sudden increase called back into prominence the range of questions that have long surrounded FDI. What causes firms to expand or contract their... View Details
Keywords: Foreign Direct Investment
Spar, Debora L., and Julia Kou. "Note on Foreign Direct Investment." Harvard Business School Background Note 795-031, January 1995.
- January 2015
- Case
Chevron Under Fire
By: George Serafeim, Rebecca Henderson and Christine Snively
Oil giant, Chevron, faced numerous challenges on environmental, social and governance (ESG) grounds in the first decade of the 21st century, including some major lawsuits and actions by NGOs. The case describes those challenges and raises questions about what is the... View Details
- 28 Aug 2023
- Research & Ideas
The Clock Is Ticking: 3 Ways to Manage Your Time Better
there are costs of working remotely when others are in the office together without you. “Our results suggest how important it is to be intentional about where you work, but also to be aware of how that affects the others on your team. ”... View Details
Keywords: by Kristen Senz
- 11 Feb 2016
- Working Paper Summaries
Do Interactions with Candidates Increase Voter Support and Participation? Experimental Evidence from Italy
- Research Summary
Engaging supply chains in climate change and sustainability issues
This research aims to develop a better understanding of the dynamics between supply chain partners in issues regarding climate change and sustainability. I am particularly interested in better understanding factors that motivate suppliers to share climate change... View Details
- February 2009 (Revised December 2009)
- Case
eReading: Amazon's Kindle
By: Bharat N. Anand, Peter W. Olson Esq. and Mary Tripsas
In November 2007, Amazon introduced the Kindle, the first electronic reader with wireless functionality. The case describes the launch of the Kindle and provides information on representative players in the industry (or broader ecosystem) who are likely to be affected... View Details
Keywords: Books; Disruptive Innovation; Technological Innovation; Industry Structures; Standards; Distribution Channels; Competitive Strategy; Publishing Industry
Anand, Bharat N., Peter W. Olson Esq., and Mary Tripsas. "eReading: Amazon's Kindle." Harvard Business School Case 709-486, February 2009. (Revised December 2009.)
- July 2006
- Article
Dynamic Mixed Duopoly: A Model Motivated by Linux vs. Windows
By: Ramon Casadesus-Masanell and Pankaj Ghemawat
This paper analyzes a dynamic mixed duopoly in which a profit-maximizing competitor interacts with a competitor that prices at zero (or marginal cost), with the cumulation of output affecting their relative positions over time. The modeling effort is motivated by... View Details
Keywords: Open Source Software; Demand-side Learning; Network Effects; Linux; Mixed Duopoly; Competitive Dynamics; Business Models; Duopoly and Oligopoly; Information Technology; Applications and Software; Business Model; Mathematical Methods; Digital Platforms; Profit; Balance and Stability; Management Analysis, Tools, and Techniques; SWOT Analysis; Competition; Price; Information Technology Industry
Casadesus-Masanell, Ramon, and Pankaj Ghemawat. "Dynamic Mixed Duopoly: A Model Motivated by Linux vs. Windows." Management Science 52, no. 7 (July 2006): 1072–1084.
- 07 Mar 2022
- News
Risks to the Brain
- 07 Jun 2016
- News
Digital Discrimination in a Sharing Economy
- December 2017
- Article
Discordant vs. Harmonious Selves: The Effects of Identity Conflict and Enhancement on Sales Performance in Employee-Customer Interactions
By: Lakshmi Ramarajan, Nancy Rothbard and Steffanie Wilk
Across multiple studies, we examine how identity conflict and enhancement within people affect performance in tasks that involve interactions between people through two mechanisms: role-immersion, operationalized as intrinsic motivation, and role-taking,... View Details
Ramarajan, Lakshmi, Nancy Rothbard, and Steffanie Wilk. "Discordant vs. Harmonious Selves: The Effects of Identity Conflict and Enhancement on Sales Performance in Employee-Customer Interactions." Academy of Management Journal 60, no. 6 (December 2017): 2208–2238.
- 04 Dec 2012
- First Look
First Look: December 4
are incompatible mediated the relationship between ambient cultural disharmony and creativity. Alternative mechanisms such as negative affect and cognitive disruption were not viable mediators. Although ambient cultural disharmony... View Details
Keywords: Carmen Nobel
- September 2020
- Teaching Note
Miami's Tech Future (C): Reaching Another Miami
By: Rosabeth Moss Kanter and Joyce J. Kim
The effects of Miami’s startup scene have not reached many “left-behind” lower-income Black communities, which are disproportionately affected by problems such as segregation and racial discrimination, lack of transportation access, crime, education quality, government... View Details
Keywords: Technology; Change; Transformation; Progress; Community; Scaling; Income Inequality; Racism; Community Impact; Community Relations; Change Management; Business Startups; Information Technology; Diversity; Race; Equality and Inequality; Social Issues; Business and Community Relations; Miami; Florida
- 2018
- Speaking truth: Mobilizing Change Through Artistic Expression
How I Found My Voice
- Research Summary
Overview
I am currently a Principal or Co-Principal Investigator of five field-based randomized controlled trials, each of which examines the management of lay health workers in developing countries, with an eye toward generating theoretical insights and policy guidance on how... View Details