Publications

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2016
Working Paper

Reviews, Reputation, and Revenue: The Case of Yelp.com

By: Michael Luca

Do online consumer reviews affect restaurant demand? I investigate this question using a novel dataset combining reviews from the website Yelp.com and restaurant data from the Washington State Department of Revenue. Because Yelp prominently displays a restaurant's... View Details

Keywords: Revenue; Network Effects; Reputation; Social and Collaborative Networks; Food and Beverage Industry; Service Industry; Washington (state, US)

November 2012
Article

Empirical Observations on Longer-term Use of Incentives for Weight Loss

By: Leslie K. John, George Loewenstein and Kevin Volpp

Behavioral economic-based interventions are emerging as powerful tools to help individuals accomplish their own goals, including weight loss. Deposit contract incentive systems give participants the opportunity to put their money down toward losing weight, which they... View Details

Keywords: Weight Loss; Obesity; Behavioral Economics; Intervention; Behavior; Motivation and Incentives

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March 2022
Article

How Much Does Your Boss Make? The Effects of Salary Comparisons

By: Zoë B. Cullen and Ricardo Perez-Truglia

The vast majority of the pay inequality in an organization comes from differences in pay between employees and their bosses. But are employees aware of these pay disparities? Are employees demotivated by this inequality? To address these questions, we conducted a... View Details

Keywords: Salary; Inequality; Managers; Career Concerns; Pay Transparency; Wages; Equality and Inequality; Perception; Behavior

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Other Article

The Market That Wasn't: The Non-emergence of the Online Grocery Category

By: Chad Navis, Greg Fisher, Ryan Raffaelli and Mary Ann Glynn

We examine the non-emergence of a potential new market category. In the late 1990s the entrepreneurial firms that attempted to sell groceries online attracted significant resources, made meaningful technological advancements and generated immense publicity, yet online... View Details

Keywords: Internet and the Web; Food; Emerging Markets; Service Industry; Food and Beverage Industry

November 2011
Case

Celeritas, Inc.: Leadership Challenges in a Fast-Growth Industry

By: Michael Beer and Ingrid Vargas

In 2011, Celeritas is a leading data communications company in the crowded, highly competitive, and ever-evolving enterprise-network optimization market. Having experienced rapid growth since its founding in 2003, Celeritas has recently seen sales decline and has begun... View Details

Keywords: Technology; Morale; Conflict; Organizational Change; Team Building; Organizational Change and Adaptation; Information Technology; Leadership; Communication; Groups and Teams; Attitudes; Conflict and Resolution; Information Technology Industry; Communications Industry

Educators

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August 2023 (Revised January 2024)
Supplement

Arla Foods: Data-Driven Decarbonization (B)

By: Michael Parzen, Michael W. Toffel, Susan Pinckney and Amram Migdal

The case describes Arla’s history, in particular its climate change mitigation efforts, and how it implemented a price incentive system to motivate individual farms to implement scope 1 greenhouse gas emissions mitigation measures and receive a higher milk price. The... View Details

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Publications - Faculty & Research

treatment... View Details Keywords: Measurement and Metrics ; Mathematical Methods ; Analytics and Data Science ; Agriculture and Agribusiness Industry ; India Citation Read Now Related Cole, Shawn, Tomoko Harigaya, Grady Killeen, and... View Details

Web

Curriculum | MBA

likely in the life sciences or biotech space. Capstone Overview First Year AUGUST Harvard Business School Online CORe Harvard Business School NextGen Biotechnology Harvard Department of Stem Cell and Regenerative Biology FALL TERM Data... View Details

2011
Working Paper

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: Geographic Location; Cross-Cultural and Cross-Border Issues; Multinational Firms and Management; Organizational Structure; Performance Productivity; Trust; Asia; Europe; United States

01 Dec 2015
Research & Ideas

What to Do When Your Organization Has Dueling Missions

explore the factors that enable hybrids to meet and sustain their social mission, while also engaging in commercial activities to support their operations. The researchers began by constructing a database containing annual View Details

Keywords: by Carmen Nobel

2023
Working Paper

When Should Public Programs Be Privately Administered? Theory and Evidence from the Paycheck Protection Program

By: Alexander Bartik, Zoë B. Cullen, Edward L. Glaeser, Michael Luca, Christopher Stanton and Adi Sunderam

What happens when public resources are allocated by private companies whose objectives may be imperfectly aligned with policy goals? We study this question in the context of the Paycheck Protection Program (PPP), which relied on private banks to disburse aid to small... View Details

Keywords: Paycheck Protection Program; Targeting; Impact; Entrepreneurship; Health Pandemics; Small Business; Financing and Loans; Outcome or Result; United States

2015
Working Paper

The Market That Wasn't: The Non-Emergence of the Online Grocery Category.

By: C. Navis, G. Fisher, Ryan Raffaelli and Mary Ann Glynn

In this paper, we examine the non-emergence of a potential new market category. In the late 1990s, the entrepreneurial firms that attempted to sell groceries online in the US attracted significant resources, made impressive technological advancements, and generated... View Details

Keywords: Emerging Markets; Failure; Food; Online Technology; Food and Beverage Industry; Web Services Industry

20 Mar 2007
First Look

First Look: March 20, 2007

model to establish these interrelationships at a firm level. Using publicly available financial data we estimate the six causal effects among sales, inventory, and gross margin. Our results show that sales, inventory, and gross margin are... View Details

Keywords: Martha Lagace

Research Summary

Divergent change in organizations

By: Julie Battilana

The first stream of research in Professor Battilana’s work aims to identify the conditions that enable individual actors to initiate divergent change within organizations as well as the conditions enabling successful implementation of such change. It combines... View Details

Forthcoming
Article

When Should Public Programs Be Privately Administered? Theory and Evidence from the Paycheck Protection Program

By: Alexander W. Bartik, Zoë Cullen, Edward L. Glaeser, Michael Luca, Christopher Stanton and Adi Sunderam

What happens when public resources are allocated by private companies whose objectives may be imperfectly aligned with policy goals? We study this question in the context of the Paycheck Protection Program (PPP), which relied on private banks to disburse aid to small... View Details

Keywords: Paycheck Protection Program; Targeting; Impact; Entrepreneurship; Health Pandemics; Small Business; Financing and Loans; Outcome or Result; United States

April 2013
Article

Overcoming Resistance to Organizational Change: Strong Ties and Affective Cooptation

By: Julie Battilana and Tiziana Casciaro

We propose a relational theory of how change agents in organizations use the strength of ties in their network to overcome resistance to change. We argue that strong ties to potentially influential organization members who are ambivalent about a change (fence-sitters)... View Details

Keywords: Organizational Change and Adaptation; Social and Collaborative Networks; Power and Influence; Health Industry; United Kingdom

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HBS Working Knowledge – Harvard Business School Faculty Research

three working Americans with criminal records from the economy? In a case study, Paul Gompers explores the challenges a social justice startup encounters in helping the formerly incarcerated, as well as lessons for other entrepreneurs. 12... View Details

Article

Learning Through Noticing: Theory and Evidence from a Field Experiment

By: Rema Hanna, Sendhil Mullainathan and Joshua Schwartzstein

We consider a model of technological learning under which people "learn through noticing": they choose which input dimensions to attend to and subsequently learn about from available data. Using this model, we show how people with a great deal of experience may... View Details

Keywords: Perception; Behavior; Learning

2024
Working Paper

Second- versus Third-party Audit Quality: Evidence from Global Supply Chain Monitoring

By: Maria R. Ibanez, Ashley Palmarozzo, Jodi L. Short and Michael W. Toffel

Capitalizing on the superior credibility and flexibility and potential lower cost of external assessments, many global buyers are relying less on their own employee (“second-party”) auditors and more on third-party auditors to monitor and prevent environmental and... View Details

Keywords: Auditing; Audit Quality; Working Conditions; Sustainability; Empirical Operations; Empirical Service Operations; Sustainability Management; Corporate Accountability; Corporate Social Responsibility and Impact; Supply Chain Management