Publications

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2016
Working Paper

Infrastructure, Incentives and Institutions

By: Nava Ashraf, Edward L. Glaeser and Giacomo A.M. Ponzetto

Cities generate negative, as well as positive, externalities; addressing those externalities requires both infrastructure and institutions. Providing clean water and removing refuse requires water and sewer pipes, but the urban poor are often unwilling to pay for the... View Details

Keywords: Motivation and Incentives; Urban Development; Organizations; City; Infrastructure; Zambia

2020
Working Paper

Social Interactions in Pandemics: Fear, Altruism, and Reciprocity

By: Laura Alfaro, Ester Faia, Nora Lamersdorf and Farzad Saidi

In SIR models, homogeneous or with a network structure, infection rates are assumed to be exogenous. However, individuals adjust their behavior. Using daily data for 89 cities worldwide, we document that mobility falls in response to fear, as approximated by Google... View Details

Keywords: Social Interactions; Pandemics; Mobility; Cities; SIR Networks; Social Preferences; Social Planner; Targeted Policies; Health Pandemics; Interpersonal Communication; Behavior; Policy

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Article

Exposure to Harmful Workplace Practices Could Account for Inequality in Life Spans Across Different Demographic Groups

By: Joel Goh, Jeffrey Pfeffer and Stefanos A. Zenios

The existence of important socioeconomic disparities in health and mortality is a well-established fact. Many pathways have been adduced to explain inequality in life spans. In this article we examine one factor that has been somewhat neglected: people with different... View Details

Keywords: Occupational Health; Inequality; Life Expectancy; Socioeconomic Issues; Health

Fall 2022
Article

China's Political Economy and International Backlash: From Interdependence to Security Dilemma Dynamics

By: Margaret Pearson, Meg Rithmire and Kellee Tsai

Contrary to expectations that economic interdependence might lessen security conflict between China and the U.S. and its allies, much of the contestation between China and several OECD countries has focused on firms and economic links. This paper explains the... View Details

Keywords: Globalized Markets and Industries; Government and Politics; Information Technology; China

05 Nov 2009
Working Paper Summaries

Medium Term Business Cycles in Developing Countries

Keywords: by Diego Comin, Norman Loayza, Farooq Pasha & Luis Serven

Population Interference in Panel Experiments

The phenomenon of population interference, where a treatment assigned to one experimental unit affects another experimental unit’s outcome, has received considerable attention in standard randomized experiments. The complications produced by population... View Details

06 Jul 2011
Research & Ideas

Are You a Level-Six Leader?

several options)? “Opportunists are the people who always ask, 'What's in it for me?'” Asking the question whom do you serve? is a powerful vector on which to build a useful typology of leadership. Based on this idea, I have constructed a six-level Purpose-Driven View Details

Keywords: by Mitch Maidique

07 Mar 2013
Working Paper Summaries

Prominent Job Advertisements, Group Learning, and Wage Dispersion

Keywords: by Julio J. Rotemberg

September 2016
Article

Do Display Ads Influence Search?: Attribution and Dynamics in Online Advertising

By: Pavel Kireyev, Koen Pauwels and Sunil Gupta

As firms increasingly rely on online media to acquire consumers, marketing managers feel comfortable justifying higher online marketing spending by referring to online metrics such as click-through rate (CTR) and cost per acquisition (CPA). However, these standard... View Details

Keywords: Internet and the Web; Digital Marketing

January–February 2023
Article

The Overlooked Key to a Successful Scale-Up

By: Jeffrey F. Rayport, Davide Sola and Martin Kupp

Many start-ups experience enormous popularity and runaway growth, but only a few go on to become stable giants. What separates them from the pack? They all go through a developmental stage called extrapolation, say three business school professors.
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Keywords: Entrepreneurship And Strategy; Scalability; Business Startups; Growth and Development Strategy; Entrepreneurship

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March – April 2008
Article

Interorganizational Trust, Governance Choice, and Exchange Performance

By: Ranjay Gulati and Jackson Nickerson

This paper looks at when and how preexisting interorganizational trust influences the choice of governance and in turn the performance of exchange relationships. We theorize that preexisting interorganizational trust complements the choice of governance mode (make,... View Details

Keywords: Corporate Governance; Organizational Culture; Performance Improvement; Conflict and Resolution; Trust

December 2013 (Revised March 2014)
Supplement

The LEGO Group: Envisioning Risks in Asia (B)

By: Anette Mikes and Amram Migdal

This brief follow-up complements the case on The LEGO Group: Stepping Up in Asia (9-113-054), and discusses the aftermath of the scenario planning session, in which LEGO managers contemplated the risks of their new Asian strategy. The scenario planning exercise played... View Details

Keywords: Risk Management; Global Strategy; Planning; Retail Industry; Asia

April 2021
Article

Homing and Platform Responses to Entry: Historical Evidence from the U.S. Newspaper Industry

By: K. Francis Park, Robert Seamans and Feng Zhu

We examine how heterogeneity in customers’ tendencies to single-home or multi-home affects a platform’s competitive responses to new entrants in the market. We first develop a formal model to generate predictions about how a platform will respond. We then empirically... View Details

Keywords: Single-homing; Multi-homing; Platform Responses; Newpaper; Television; Digital Platforms; Market Entry and Exit; Newspapers; Television Entertainment; History; Journalism and News Industry; Media and Broadcasting Industry

07 Nov 2014
Working Paper Summaries

Do Experts or Collective Intelligence Write with More Bias? Evidence from Encyclopædia Britannica and Wikipedia

Keywords: by Shane Greenstein & Feng Zhu; Information; Publishing

October 2016
Case

Addicaid: Scaling a Digital Platform for Addiction Wellness and Recovery

By: Robert S. Huckman and Sarah Mehta

In 2013, Sam Frons founded Addicaid—a mobile application (app) that allowed people in addiction recovery to track their progress, check in with counselors, and connect with others in recovery programs. The app was grounded in cognitive behavioral therapy and used the... View Details

Keywords: Digital Health Interventions; Substance Use Disorder; Addiction Treatment; Addiction Recovery; Scale; Innovation; Health; Health Disorders; Health Industry; New York (city, NY)

Educators

Research Summary

Microwedges: Challenging power one small opening at a time [Dissertation, job market paper]

Based on a 31-month qualitative inductive study of multidisciplinary change teams, I introduce the concept of the “microwedge”—a small action or series of actions by team members that allows the team to examine their own assumptions so that they can begin to engage... View Details

Teaching Interest

Harvard Business Analytics Program: Operations and Supply Chain Management

By: Dennis Campbell

Digital technologies and data analytics are radically changing the operating model of an organization and how it connects to its broader supply chain and ecosystem. This course emphasizes managing product availability, especially in a context of rapid product... View Details

June 2019
Article

Social Risk, Fiscal Risk, and the Portfolio of Government Programs

By: Samuel G. Hanson, David S. Scharfstein and Adi Sunderam

We develop a model of government portfolio choice in which a benevolent government chooses the scale of risky projects in the presence of market failures and tax distortions. These two frictions generate motives to manage social risk and fiscal risk. Social risk... View Details

Keywords: Risk Management; Government and Politics; Programs

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November 2022
Case

The Battle Among Channels for Marketing Pharmaceuticals: UpScript, Pharmacy Benefit Managers, and Direct-to-Consumer Sales

By: Regina E. Herzlinger and Tiffany Farrell

Can an online, direct-to-consumer pharmacy both improve the quality and speed of care for patients who need branded drugs and stabilize profits for pharmaceutical manufacturers? UpScript, after years spent achieving legal and regulatory compliance and simultaneous... View Details

Keywords: DTC; Internet and the Web; Marketing Channels; Customer Value and Value Chain; Governing Rules, Regulations, and Reforms; Competitive Strategy; Service Delivery; Growth and Development Strategy; Pharmaceutical Industry; Health Industry; Retail Industry

Educators