Publications

Educators

30 Jan 2018
Working Paper Summaries

Credit Supply Shocks, Network Effects, and the Real Economy

Keywords: by Laura Alfaro, Manuel García, and Enrique Moral-Benito

2013
Working Paper

Separating Homophily and Peer Influence with Latent Space

By: Joseph P. Davin, Sunil Gupta and Mikolaj Jan Piskorski

We study the impact of peer behavior on the adoption of mobile apps in a social network. To identify social influence properly, we introduce latent space as an approach to control for latent homophily, the idea that "birds of a feather flock together." In a series of... View Details

Keywords: Social Influence; Social Network; Mobile App; Peer Effects; Latent Homophily; Latent Space; Proxy Variables; Familiarity; Behavior; Consumer Behavior; Applications and Software; Social and Collaborative Networks; Mobile and Wireless Technology; Power and Influence; Social Media

April 2010
Article

Endowments, Fiscal Federalism, and the Cost of Capital for States: Evidence from Brazil, 1891-1930

By: Andre C. Martinez Fritscher and Aldo Musacchio

There is a large literature looking at the determinants of country risk (defined as the difference between the yield of a sovereign's bonds and the risk-free rate). In this paper, we contribute to the discussion by arguing that an important explanatory factor is the... View Details

Keywords: Bonds; Performance Capacity; Taxation; Revenue; Governance; Geographic Location; Trade; Price; Cost of Capital; Risk and Uncertainty; Public Administration Industry; Brazil

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U.S. states increasingly require identification to vote—an ostensible attempt to deter fraud that prompts complaints of selective disenfranchisement. Using a difference-in-differences design on a panel data set with 1.6 billion observations, 2008–2018, we find that... View Details

April 2024
Article

Detecting Routines: Applications to Ridesharing CRM

By: Ryan Dew, Eva Ascarza, Oded Netzer and Nachum Sicherman

Routines shape many aspects of day-to-day consumption. While prior work has established the importance of habits in consumer behavior, little work has been done to understand the implications of routines—which we define as repeated behaviors with recurring, temporal... View Details

Keywords: Ride-sharing; Routine; Machine Learning; Customer Relationship Management; Consumer Behavior; Segmentation

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July–August 2024
Article

Doing More with Less: Overcoming Ineffective Long-Term Targeting Using Short-Term Signals

By: Ta-Wei Huang and Eva Ascarza

Firms are increasingly interested in developing targeted interventions for customers with the best response, which requires identifying differences in customer sensitivity, typically through the conditional average treatment effect (CATE) estimation. In theory, to... View Details

Keywords: Long-run Targeting; Heterogeneous Treatment Effect; Statistical Surrogacy; Customer Churn; Field Experiments; Consumer Behavior; Customer Focus and Relationships; AI and Machine Learning; Marketing Strategy

2019
Working Paper

Government Technology Policy, Social Value, and National Competitiveness

By: Frank Nagle

This study seeks to better understand the impact that government technology procurement regulations have on social value and national competitiveness. To do this, it examines the impact of a change in France’s technology procurement policy that required government... View Details

Keywords: Social Value; Competitiveness; Government Administration; Information Technology; Acquisition; Policy; Value

SSRN

23 Aug 2013
Working Paper Summaries

Waves in Ship Prices and Investment

Keywords: by Robin Greenwood & Samuel Hanson

2021
Working Paper

Dirty Money: How Banks Influence Financial Crime

By: Joseph Pacelli, Janet Gao, Jan Schneemeier and Yufeng Wu

On September 21st, 2020, a consortium of international journalists leaked nearly 2,500 suspicious activity reports (SAR) obtained from the U.S. Financial Crimes Enforcement Network, exposing nearly $2 trillion of money laundering activity. The event raises important... View Details

Keywords: Financial Institutions; Crime and Corruption; Policy

SSRN

July 2021
Article

Energy Efficiency and Electricity Reliability

By: Eliana Carranza and Robyn C. Meeks

Overloaded electrical systems are a major source of unreliable power. Using a randomized saturation design, we estimate the impact of compact fluorescent lamps (CFLs) on electricity reliability and household electricity consumption in the Kyrgyz Republic. Greater... View Details

Keywords: Energy; Technology Adoption; Green Technology; Consumer Behavior; Utilities Industry; Kyrgyzstan

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TeachingInterests

Decision Making Under Uncertainty

By: David E. Bell

Many of the decisions we face are made complicated by having uncertain consequences: how should I set my inventory when I don’t know what demand will be, should I refinance my mortgage when rates might go lower, how big a bet shall I make in a new business, and so... View Details

03 May 2019
HBS Seminar

Stephanie Cheng & Ran Song, Harvard University & Harvard Law School

2011
Chapter

How Does Simplified Disclosure Affect Individuals' Mutual Fund Choices?

By: John Beshears, James J. Choi, David Laibson and Brigitte C. Madrian

We use an experiment to estimate the effect of the SEC's Summary Prospectus, which simplifies mutual fund disclosure. Our subjects chose an equity portfolio and a bond portfolio. Subjects received either statutory prospectuses or Summary Prospectuses. We find no... View Details

Keywords: Information; Corporate Disclosure; Decision Choices and Conditions; Consumer Behavior; Retirement; Personal Finance; Investment Funds; Microeconomics

07 Mar 2007
Research & Ideas

How Do You Value a “Free” Customer?

begins to answer. Sarah Jane Gilbert: Why do traditional customer lifetime value formulas break down in a networked setting, and how does your model address those shortcomings? Sunil Gupta: Traditional models of CLV estimate a customer's... View Details

Keywords: by Sarah Jane Gilbert; Web Services

20 Feb 2007
First Look

First Look: February 20, 2007

empirical methods in permitting strong conclusions. Finally, we offer several observations on the implications of certain analyses in the paper. Overall, the authors are to be applauded for their efforts to maintain a high standard in empirical accounting research.... View Details

Keywords: Martha Lagace

March 2024 (Revised April 2024)
Case

Angel City Football Club: Scoring a New Model

By: Jeffrey F. Rayport, Jennifer Fonstad and Nicole Tempest Keller

In January 2024, Kara Nortman, Julie Uhrman, and Natalie Portman, the founders of Angel City Football Club (ACFC) were developing the club’s first three-year strategic plan. Founded in 2020, ACFC had a star-studded investor group, including Portman and celebrities such... View Details

Keywords: Sports; Entertainment; Entrepreneurship; Brands and Branding; Venture Capital; Business Model; Corporate Strategy; Digital Marketing; Sports Industry; Entertainment and Recreation Industry; United States; California; Los Angeles

Educators

2014
Working Paper

Non-Adherence in Health Care: A Positive and Normative Analysis

By: Mark Egan and Tomas J. Philipson

Non-adherence in health care results when a patient does not initiate or continue care that a provider has recommended. Previous research identifies non-adherence as a major source of waste in US health care, totaling approximately 2.3% of GDP, and have proposed a... View Details

Keywords: Health Care and Treatment; Behavior; Economics; Analysis; Mathematical Methods