Publications

2024
Working Paper

What Do Impact Investors Do Differently?

By: Shawn Cole, Leslie Jeng, Josh Lerner, Natalia Rigol and Benjamin N. Roth

In recent years, impact investors – private investors who seek to generate simultaneously financial and social returns – have attracted intense interest and controversy. We analyze a novel, comprehensive data set of impact and traditional investors to assess how the... View Details

Keywords: ESG; Socially Responsible Investing; Investment Decisions; Public Goods; Impact Investment; Investment; Private Equity; Venture Capital

SSRN

March 2013
Article

Punctuated Generosity: How Mega-events and Natural Disasters Affect Corporate Philanthropy in U.S. Communities

By: Andras Tilcsik and Christopher Marquis

Geographic communities have been shown to affect organizations through their enduring features, but less attention has been given to communities as sites of human-made and natural events that occasionally disrupt the lives of organizations. We develop a... View Details

Keywords: Geographic Communities; Punctuated Equilibrium; Corporate Social Responsibility; Institutional Theory; Natural Disasters; Situation or Environment; Balance and Stability; Corporate Social Responsibility and Impact; Business and Community Relations; Philanthropy and Charitable Giving; United States

May 2023
Article

How Do Campaigns Shape Vote Choice? Multi-Country Evidence from 62 Elections and 56 TV Debates

By: Caroline Le Pennec and Vincent Pons

We use two-round survey data from 62 elections in 10 countries since 1952 to study the formation of vote choice, beliefs, and policy preferences and assess how televised debates contribute to this process. Our data include 253,000 observations. We compare the... View Details

Keywords: Political Debates; TV Debates; Voting; Political Elections; Decision Choices and Conditions

2021
Working Paper

Does Social Media Cause Polarization? Evidence from Access to Twitter Echo Chambers during the 2019 Argentine Presidential Debate

By: Rafael Di Tella, Ramiro H. Gálvez and Ernesto Schargrodsky

We study how two groups, those inside vs. those outside echo chambers, react to a political event when we vary social media status (Twitter). Our treatments mimic two strategies often suggested as a way to limit polarization on social media: they expose people to... View Details

Keywords: Political Polarization; Political Elections; Internet and the Web; Attitudes; Social Media; Argentina

2008
Working Paper

Market Reaction to the Adoption of IFRS in Europe

By: Christopher S. Armstrong, Mary E. Barth, Alan D. Jagolinzer and Edward J. Riedl

This study examines the European stock market reaction to sixteen events associated with the adoption of International Financial Reporting Standards (IFRS) in Europe. European IFRS adoption represented a major milestone towards financial reporting convergence yet... View Details

Keywords: Financial Reporting; International Accounting; Financial Markets; Code Law; Standards; Adoption; Europe

December 2008
Article

The Political Economy of 'Natural' Disasters

By: Charles Cohen and Eric D. Werker

Natural disasters occur in a political space. Although events beyond our control may trigger a disaster, the level of government preparedness and response greatly determines the extent of suffering incurred by the affected population. We use a political economy model... View Details

Keywords: History; Demographics; Natural Disasters; Policy; Economy; Government and Politics

January 2025
Article

Communication Within Firms: Evidence from CEO Turnovers

By: Stephen Michael Impink, Andrea Prat and Raffaella Sadun

This paper uses novel, firm-level communication measures derived from communications metadata several months before and after a CEO transition for 102 firms to study whether and how this organizational event is reflected in employees’ communication flows. We find that... View Details

Keywords: Information; Communication; Management Succession; Organizational Change and Adaptation; Alignment

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05 Dec 2023
Research & Ideas

Lessons in Decision-Making: Confident People Aren't Always Correct (Except When They Are)

right combination of weights to maximize the load without breaking it. A coin flipping task that demonstrates the “gambler’s fallacy,” the faulty tendency to think that previous events influence a future random event. A bidding task to... View Details

Keywords: by Kara Baskin

December 2009
Article

Estimation and Empirical Properties of a Firm-Year Measure of Accounting Conservatism

By: Mozaffar N. Khan and Ross L. Watts

We estimate a firm-year measure of accounting conservatism, examine its empirical properties as a metric, and illustrate applications by testing new hypotheses that shed further light on the nature and effects of conservatism. The results are consistent with the... View Details

2016
Working Paper

Paying (for) Attention: The Impact of Information Processing Costs on Bayesian Inference

By: Scott Duke Kominers, Xiaosheng Mu and Alexander Peysakhovich

Human information processing is often modeled as costless Bayesian inference. However, research in psychology shows that attention is a computationally costly and potentially limited resource. We study a Bayesian individual for whom computing posterior beliefs is... View Details

Keywords: Behavior; Cognition and Thinking; Economics

2020
Working Paper

Reinventing Retail: The Novel Resurgence of Independent Bookstores

By: Ryan Raffaelli

This study examines how community-based brick-and-mortar retailers can achieve sustained market growth in the face of online and big box retail competition. The appearance of Amazon.com in 1995 led to a significant decline in the number of independent bookstores in the... View Details

Keywords: Bookstores; Competitive Strategy; Business and Community Relations; Customization and Personalization; Growth and Development; Retail Industry; United States

03 May 2024
Research & Ideas

How Much Does Proximity Influence Startup Innovation? 20 Meters' Worth to Be Exact

moderately diverse environments (within 20 meters)—a composite measure based on variables like product market—that share what they know while also participating in coworking social events can help each other gain traction. The View Details

Keywords: by Ben Rand

2007
Working Paper

The Political Economy of 'Natural' Disasters

By: Charles Cohen and Eric D. Werker

Natural disasters occur in a political space. Although events beyond our control may trigger a disaster, the level of government preparedness and response greatly determines the extent of suffering incurred by the affected population. We use a political economy model... View Details

Keywords: Policy; Government and Politics; Strategic Planning; Mathematical Methods; Natural Disasters; Welfare or Wellbeing

17 Oct 2006
First Look

First Look: October 17, 2006

Walt Disney and the 1941 Animators' Strike Harvard Business School Case 406-076 Focuses on the leadership lessons drawn from the events precipitating the Animator's Strike of 1941, depicting the growing pains of a company that was as much... View Details

Keywords: Sean Silverthorne

April 2004
Article

Do CEOs in Mergers Trade Power for Premium? Evidence from 'Mergers of Equals'

By: Julie Wulf

I analyze chief executive officer (CEO) incentives to negotiate shared control in the postmerger governance of the surviving firm. In order to do this, I study abnormal returns in a sample of "mergers of equals" (MOEs) transactions in which the two firms are... View Details

Keywords: Mergers and Acquisitions; Negotiation; Governance Controls; Power and Influence; Value Creation; Business and Shareholder Relations; Governing and Advisory Boards; Motivation and Incentives; Market Transactions

May 2022
Article

The Impact of COVID-19 on Digital Communication Patterns

By: Evan DeFilippis, Stephen Michael Impink, Madison Singell, Jeff Polzer and Raffaella Sadun

We explore the impact of COVID-19 on employees’ digital communication patterns through an event study of lockdowns in 16 large metropolitan areas in North America, Europe, and the Middle East. Using de-identified, aggregated meeting and email meta-data from 3,143,270... View Details

Keywords: Meetings; Email; COVID-19 Pandemic; Communication Technology; Health Pandemics; Time Management