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Show Results For
- All HBS Web
(728)
- News (73)
- Research (565)
- Events (12)
- Multimedia (3)
- Faculty Publications (311)
- October 2022
- Article
Amplification in the Evaluation of Multiple Emotional Expressions over Time
By: Amit Goldenberg, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari, Jamil Zaki and James J. Gross
Social interactions are dynamic and unfold over time. To make sense of social interactions, people must aggregate sequential information into summary, global evaluations. But how do people do this? Here, to address this question, we conducted nine studies (N = 1,583)... View Details
Goldenberg, Amit, Jonas Schöne, Zi Huang, Timothy D. Sweeny, Desmond C. Ong, Timothy Brady, Maria M. Robinson, David Levari, Jamil Zaki, and James J. Gross. "Amplification in the Evaluation of Multiple Emotional Expressions over Time." Nature Human Behaviour 6, no. 10 (October 2022): 1408–1416.
- 2002
- Other Unpublished Work
Market Liquidity as a Sentiment Indicator
By: Malcolm Baker and Jeremy Stein
We build a model that helps to explain why increases in liquidity—such as lower bid–ask spreads, a lower price impact of trade, or higher turnover—predict lower subsequent returns in both firm-level and aggregate data. The model features a class of irrational... View Details
Keywords: Price; Financial Liquidity; Trade; Valuation; Markets; Forecasting and Prediction; Equity; Stock Shares; Investment Return
Baker, Malcolm, and Jeremy Stein. "Market Liquidity as a Sentiment Indicator." NBER Working Paper Series, 2002. (First draft in 2001.)
- January 22, 2015
- Other Article
Are Capital Controls Effective? Firm-level Evidence from Brazil
By: Laura Alfaro, Anusha Chari and Fabio Kanczuk
Capital controls are back in fashion. This column discusses new firm-level evidence from Brazil showing that capital controls segment international financial markets, reduce external financing, and lower firm-level investment. They disproportionately affect small,... View Details
Alfaro, Laura, Anusha Chari, and Fabio Kanczuk. "Are Capital Controls Effective? Firm-level Evidence from Brazil." Vox, CEPR Policy Portal (January 22, 2015).
- July 1997
- Case
We've Got Rhythm! Medtronic Corporation's Cardiac Pacemaker Business
By: Clayton M. Christensen
Illustrates how a new management team at Medtronic's Cardiac Pacemaker business reversed a steep decline in market share by adopting certain management principles for new product development: clarifying strategy, aggregating project planning, accommodating the number... View Details
Keywords: Management Teams; Innovation Strategy; Innovation and Management; Product Development; Health; Technology; Change Management; Medical Devices and Supplies Industry; United States
Christensen, Clayton M. "We've Got Rhythm! Medtronic Corporation's Cardiac Pacemaker Business." Harvard Business School Case 698-004, July 1997.
- Article
The Cross Section of Expected Holding Period Returns and Their Dynamics: A Present Value Approach
By: Matthew R. Lyle and Charles C.Y. Wang
We provide a tractable model of firm-level expected holding period returns using two firm fundamentals—book-to-market ratio and ROE—and study the cross-sectional properties of the model-implied expected returns. We find that 1) firm-level expected returns and expected... View Details
Keywords: Expected Returns; Discount Rates; Holding Period Returns; Fundamental Valuation; Present Value; Valuation; Investment Return
Lyle, Matthew R., and Charles C.Y. Wang. "The Cross Section of Expected Holding Period Returns and Their Dynamics: A Present Value Approach." Journal of Financial Economics 116, no. 3 (June 2015): 505–525.
- June 2004
- Article
Market Liquidity as a Sentiment Indicator
By: Malcolm Baker and Jeremy Stein
We build a model that helps to explain why increases in liquidity-such as lower bid-ask spreads, a lower price impact of trade, or higher turnover-predict lower subsequent returns in both firm-level and aggregate data. The model features a class of irrational... View Details
Keywords: Markets; Financial Liquidity; Price; Trade; Sales; Equity; Information; Management Analysis, Tools, and Techniques; Accounting Industry
Baker, Malcolm, and Jeremy Stein. "Market Liquidity as a Sentiment Indicator." Journal of Financial Markets 7, no. 3 (June 2004): 271–299.
- March 2022 (Revised December 2022)
- Case
Perch
By: Jeffrey F. Rayport, Stacy Straaberg and Julia Kelley
In May 2021, Perch CEO Chris Bell needed to decide whether his e-commerce aggregator company, which bought and scaled Amazon Marketplace brands, should acquire up to three acquisition targets. The prospective acquisitions, Web Deals Direct, HomeCo, and Future Brands,... View Details
Keywords: Business Ventures; Acquisition; Business Growth and Maturation; Decision Making; Cost vs Benefits; Decision Choices and Conditions; Decisions; Management; Growth and Development Strategy; Strategy; Business Strategy; Integration; E-commerce; Consumer Products Industry; Retail Industry; Technology Industry; North America; United States; Massachusetts; Boston; California; Asia; Philippines
- Article
What Is Your Status Portfolio? Higher Status Variance across Groups Increases Interpersonal Helping but Decreases Intrapersonal Well-being
By: Catarina R. Fernandes, Siyu Yu, Taeya M. Howell, Alison Wood Brooks, Gavin J. Kilduff and Nathan C. Pettit
Individuals belong to multiple groups across various domains of life, which in aggregate constitute a portfolio of potentially distinct levels of experienced status. We propose a two-factor model for assessing the effects of an individual’s status portfolio, based on... View Details
Keywords: Status; Social Hierarchies; Helping; Perspective Taking; Anxiety; Status and Position; Groups and Teams; Perspective; Well-being
Fernandes, Catarina R., Siyu Yu, Taeya M. Howell, Alison Wood Brooks, Gavin J. Kilduff, and Nathan C. Pettit. "What Is Your Status Portfolio? Higher Status Variance across Groups Increases Interpersonal Helping but Decreases Intrapersonal Well-being." Organizational Behavior and Human Decision Processes 165 (July 2021): 56–75.
- October 2009 (Revised June 2010)
- Case
Hulu: An Evil Plot to Destroy the World?
By: Anita Elberse and Sunil Gupta
In July 2009, Jason Kilar, the chief executive officer of Hulu, is debating whether the online video aggregator should move away from a purely advertising-supported model, and whether it should participate in an industry-wide initiative to develop and test... View Details
Keywords: Advertising; Business Model; Television Entertainment; Distribution Channels; Service Operations; Internet and the Web; Media and Broadcasting Industry; Motion Pictures and Video Industry
Elberse, Anita, and Sunil Gupta. "Hulu: An Evil Plot to Destroy the World?" Harvard Business School Case 510-005, October 2009. (Revised June 2010.)
- 2024
- Working Paper
Design of Panel Experiments with Spatial and Temporal Interference
By: Tu Ni, Iavor Bojinov and Jinglong Zhao
One of the main practical challenges companies face when running experiments (or A/B tests) over a panel is interference, the setting where one experimental unit's treatment assignment at one time period impacts another's outcomes, possibly at the following time... View Details
Keywords: Research
Ni, Tu, Iavor Bojinov, and Jinglong Zhao. "Design of Panel Experiments with Spatial and Temporal Interference." Harvard Business School Working Paper, No. 24-058, March 2024.
Design of Panel Experiments with Spatial and Temporal Interference
One of the main practical challenges companies face when running experiments (or A/B tests) over a panel is interference, the setting where one experimental unit's treatment assignment at one time period impacts another's outcomes, possibly at the following time... View Details
- November 2012
- Article
The Organization of Firms Across Countries
By: Nicholas Bloom, Raffaella Sadun and John Van Reenen
We argue that social capital as proxied by trust increases aggregate productivity by affecting the organization of firms. To do this we collect new data on the decentralization of investment, hiring, production, and sales decisions from Corporate Headquarters to local... View Details
Keywords: Decentralization; Social Capital; Theory Of The Firm; Firm Objectives, Organization, And Behavior; Business Economics; Management Of Technological Innovation And R＆D; Technological Change: Choices And Consequences; Diffusion Processes; Organizational Structure; Performance Productivity; Trust; Technology Adoption; Multinational Firms and Management
Bloom, Nicholas, Raffaella Sadun, and John Van Reenen. "The Organization of Firms Across Countries." Quarterly Journal of Economics 127, no. 4 (November 2012). (Slides from 2008, Harvard Business School Working Paper, No. 12-005, August 2011.)
- Article
How Much Does Industry Matter, Really?
By: A. M. McGahan and M. E. Porter
In this paper, we examine the importance of year, industry, corporate-parent, and business-specific effects on the profitability of U.S. public corporations within specific 4-digit SIC categories. Our results indicate that year, industry, corporate-parent, and... View Details
McGahan, A. M., and M. E. Porter. "How Much Does Industry Matter, Really?" Special Issue on Organizational and Competitive Influences on Strategy and Performance. Strategic Management Journal 18, no. S1 (July 1997): 15–30.
- 02 May 2016
- HBS Seminar
Chiara Farronato, Harvard Business School
- November 2013 (Revised November 2014)
- Case
Infection Control at Massachusetts General Hospital
By: Robert S. Huckman and Nikolaos Trichakis
The case explores the challenges facing Massachusetts General Hospital concerning the adoption of a new infection control policy, which promises to improve operational performance, patient safety, and profitability. The new policy requires coordination between... View Details
Keywords: Safety; Organizational Change and Adaptation; Integration; Health Care and Treatment; Policy; Health Industry; Boston
Huckman, Robert S., and Nikolaos Trichakis. "Infection Control at Massachusetts General Hospital." Harvard Business School Case 614-044, November 2013. (Revised November 2014.)
- 28 Feb 2018
- HBS Seminar
Kartik Hosanagar, Wharton, University of Pennsylvania
- 05 Aug 2010
- News
Harvard Business School Names 2010 Social Entrepreneurship Fellows
- 16 May 2012
- News
Amazon consumer book reviews as reliable as media experts
- March 2024
- Case
ixigo
By: Ranjay Gulati and Rachna Tahilyani
Ixigo is India’s second-largest online travel aggregator (OTA) and the market leader among private train OTAs. It has overcome numerous near-death crises to emerge as a customer-centric, profitable firm. It aspires to become the leading OTA in the next billion Internet... View Details
- August 2014
- Teaching Plan
The Huffington Post
In February 2010, management of the Huffington Post, a fast-growing but not-yet-profitable Internet newspaper that aggregates blog posts from unpaid contributors and excerpts of stories originally published by other news sites, faces a number of decisions about its... View Details
Keywords: Internet and the Web; Newspapers; Entrepreneurship; Growth and Development Strategy; Journalism and News Industry
Eisenmann, Thomas R. "The Huffington Post." Harvard Business School Teaching Plan 815-052, August 2014.