Publications

March 2012
Article

The Hierarchical Face: Higher Rankings Lead to Less Cooperative Looks

By: Patricia Chen, Christopher G. Myers, Shirli Kopelman and Stephen M. Garcia

In 3 studies, we tested the hypothesis that the higher ranked an individual's group is, the less cooperative the facial expression of that person is judged to be. Study 1 established this effect among business school deans, with observers rating individuals from higher... View Details

Keywords: Rank and Position; Cooperation

2012
Working Paper

Expertise Dissensus: A Multi-level Model of Teams' Differing Perceptions about Member Expertise

By: Heidi K. Gardner and Lisa Kwan

Why are some teams more effective than others at using their members' expertise to achieve short-term performance and longer term developmental benefits? We propose that a critical factor is expertise dissensus-members' differing perceptions of each other's level of... View Details

Keywords: Groups and Teams; Failure; Experience and Expertise; Research; Performance Effectiveness; Knowledge Use and Leverage; Perception; Personal Development and Career

August 2006
Article

Investor Sentiment and the Cross Section of Stock Returns

By: Malcolm Baker and Jeffrey Wurgler

We examine how investor sentiment affects the cross-section of stock returns. Theory predicts that a broad wave of sentiment will disproportionately affect stocks whose valuations are highly subjective and are difficult to arbitrage. We test this prediction by... View Details

Keywords: Behavioral Finance; Stocks; Investment Return; Forecasting and Prediction; Motivation and Incentives; Risk and Uncertainty; Volatility

21 Jul 2020
News

New Models for a New World

08 Nov 2017
HBS Seminar

Elizabeth Lyons, UC San Diego School of Global Policy & Strategy

January 1986
Article

Social Influences on Creativity: The Effects of Contracted-For Reward

By: T. M. Amabile, B. A. Hennessey and B. S. Grossman

Three studies, with 195 5–11 yr olds and 60 female undergraduates, tested the hypothesis that explicitly contracting to do an activity in order to receive a reward would have negative effects on creativity, but receiving no reward or only a noncontracted-for reward... View Details

Keywords: Social Psychology; Creativity; Motivation and Incentives; Situation or Environment

June 2025
Exercise

Full-Funnel Advertising on TikTok: An Experiment

By: Jeremy Yang and Ayelet Israeli

TikTok’s Marketing Science team developed a new type of advertising strategy beyond branding and performance advertising, called full-funnel advertising. Branding ads focused on brand building at the top of the funnel by generating consumer awareness, while performance... View Details

2021
Other Unpublished Work

Computer-Implemented Methods and Systems for Measuring, Estimating, and Managing Economic Outcomes and Technical Debt in Software Systems and Projects: US Patent 11,126,427 B2

By: Daniel J. Sturtevant, Carliss Baldwin, Alan MacCormack, Sunny Ahn and Sean Gilliland

An interrelated set of tools and methods is disclosed for: (1) measuring the relationship between software source code attributes (such as code quality, design quality, test quality, and complexity metrics) and software economics outcome metrics (such as... View Details

Keywords: Technical Debt; Applications and Software; Economics; Measurement and Metrics; Patents

September 2020 (Revised July 2022)
Exercise

Artea (C): Potential Discrimination through Algorithmic Targeting

By: Eva Ascarza and Ayelet Israeli

This collection of exercises aims to teach students about 1)Targeting Policies; and 2)Algorithmic bias in marketing—implications, causes, and possible solutions. Part (A) focuses on A/B testing analysis and targeting. Parts (B),(C),(D) Introduce algorithmic bias. The... View Details

Keywords: Targeting; Algorithmic Bias; Race; Gender; Marketing; Diversity; Customer Relationship Management; Prejudice and Bias; Retail Industry; Apparel and Accessories Industry; Technology Industry; United States

March 24, 2020
Article

A Time to Lead with Purpose and Humanity

By: Hubert Joly

In these unprecedented times, corporate leaders are being put to the test. Many just last summer had signed the Business Roundtable Statement of Purpose that committed their companies to serving all stakeholders. The pandemic is the first test of these principles. The... View Details

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December 2014
Article

When to Sell Your Idea: Theory and Evidence from the Movie Industry

By: Hong Luo

I study a model of investment and sale of ideas and test its empirical implications using a novel data set from the market for original movie ideas. Consistent with the theoretical results, I find that buyers are reluctant to meet unproven sellers for early-stage... View Details

Keywords: Market For Ideas; Information Asymmetry; Expropriation Risk; Intermediary; Intellectual Property Protection; Strategy; Intellectual Property; Film Entertainment; Sales; Entertainment and Recreation Industry

May 2004
Article

The Case for International Coordination of Electricity Regulation: Evidence from the Measurement of Efficiency in South America

A decade of experience has shown that monitoring the performance of public and private monopolies is the hardest part of electricity sector reform in South America—because operators control most of the information needed for effective regulation. South American... View Details

Keywords: Information; Mathematical Methods; Monopoly; Globalization; Energy Sources; Energy Industry; South America

12 Mar 2024
Research & Ideas

Publish or Perish: What the Research Says About Productivity in Academia

publication outputs also works against tenured professors, who typically spend more time on longer lead-time projects, such as writing books or advising policymakers. The Harvard team looked instead at per-hour research output to test the... View Details

Keywords: by Ben Rand; Education

July – August 2011
Article

Deliberate Learning to Improve Performance in Dynamic Service Settings: Evidence from Hospital Intensive Care Units

By: I. M. Nembhard and A. L. Tucker

Dynamic service settings-characterized by workers who interact with customers to deliver services in a rapidly changing, uncertain, and complex environment (e.g., hospitals)-play an important role in the economy. Organizational learning studies in these settings have... View Details

Keywords: Experience and Expertise; Customer Focus and Relationships; Learning; Health Care and Treatment; Service Delivery; Performance Improvement; Quality; Groups and Teams; Cooperation; Health Industry

29 Oct 2024
HBS Seminar

Lynn Wu, Wharton

December 2021
Article

Primary Care Access During the COVID-19 Pandemic: a Simulated Patient Study

By: Michael Anne Kyle, Renuka Tipirneni, Nitya Thakore, Sneha Dave and Ishani Ganguli

Background
Primary care practices have experienced major strains during the COVID-19 pandemic, such that patients newly seeking care may face potential barriers to timely visits.
Objective
To quantify availability and wait times for new patient... View Details

Keywords: COVID-19; Ambulatory Care; Policy/economics; Access; Telemedicine; Health Pandemics; Health Care and Treatment

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January 2009 (Revised July 2009)
Case

Targanta Therapeutics: Hitting a Moving Target

By: Arthur A. Daemmrich

This case explores regulatory, product testing, and business strategy at Targanta Therapeutics, a biotech company preparing its first new drug application to the FDA. In October 2007, Mark Leuchtenberger, president and CEO of Targanta—which has just held a successful... View Details

Keywords: Decision Choices and Conditions; Entrepreneurship; Governing Rules, Regulations, and Reforms; Health Testing and Trials; Product Development; Business and Government Relations; Business Strategy; Biotechnology Industry; Pharmaceutical Industry

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