Publications

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

Research Summary

Rare Consumption Disasters

By: Emil N. Siriwardane

Another defining feature of financial crises is consumption disasters, or large drops in aggregate consumption. Rather than taking the standard approach of seeking implications of such rare disasters for asset pricing in consumption data, Professor Siriwardane asks... View Details

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

Keywords: Social Interactions; Facial Expressions; Emotions; Behavior; Perception

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Other Unpublished Work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

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

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

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

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

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

SSRN

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

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

Keywords: Supply and Industry; Strategy

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

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

28 Feb 2018
HBS Seminar

Kartik Hosanagar, Wharton, University of Pennsylvania

16 May 2012
News

Amazon consumer book reviews as reliable as media experts

05 Aug 2010
News

Harvard Business School Names 2010 Social Entrepreneurship Fellows

June 2015
Article

The Organization of Enterprise in Japan

By: Tom Nicholas

Recent research reveals that the joint stock corporation was not a superior form of business organization in many countries historically. In Japan, however, it played a more fundamental role. Between 1896 and 1939 joint stock enterprises accounted for 44 percent of... View Details

Keywords: Japan; Legal Form; Enterprise; Modernization; Business Organization; Entrepreneurship; Japan

October 2019 (Revised August 2020)
Case

Souqalmal: The Choice Is Yours (A)

By: V.G. Narayanan and Alpana Thapar

This case describes how Ambareen Musa, Founder and CEO of Souqalmal, a Dubai-based online comparison aggregator of banking and insurance products launched her business in 2011 and rapidly grew it over next couple of years. However, by 2017, the Mauritian entrepreneur... View Details

Keywords: Unit Economics; Finance; Accounting; Competitive Strategy; Financial Statements; Insurance Industry; Middle East