Publications

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

Jul 2014
Working Paper

The State of Small Business Lending: Credit Access During the Recovery and How Technology May Change the Game

been slow to recover from a recession and credit crisis that hit them especially hard. This lag has prompted the question, "Is there a credit gap in small business lending?" This paper compiles and analyzes the current state of View Details

20 Jan 2021
News

In Biden’s first 100 days, businesses can expect more stimulus, easier access to loans, and government contracting opportunities

2014
Other Unpublished Work

Nudging Physicians to Pursue Careers in Underserved Areas: A Case for Behavioral Economics

By: Joseph Lopez, Mona Singh, Nava Ashraf and Joel Weissman

Currently, more than 60 million Americans live in "Health Professional Shortage Areas." Unless policymakers can encourage more physicians to practice in medically under-resourced areas, an increased number of uninsured individuals newly able to obtain health insurance... View Details

Keywords: Access To Care; Health Economics; Health Reform; Minority Health; Disparities; Health Care and Treatment; Health Industry

2002
Working Paper

Effects of Demographic Factors and Provider Structures on the Cost and Length of Stay for Hemodialysis Patients with Vascular Access Failure

By: Louis Brenner, Dennis Campbell, Frances X. Frei and Ajay Singh

December 2018
Article

Reserve Design: Unintended Consequences and the Demise of Boston's Walk Zones

By: Umut Dur, Scott Duke Kominers, Parag A. Pathak and Tayfun Sönmez

Admissions policies often use reserves to grant certain applicants higher priority for some (but not all) available seats. Boston’s school choice system, for example, reserved half of each school’s seats for local neighborhood applicants while leaving the other half... View Details

Keywords: Neighborhoods; Equal Access; School Choice; Affirmative Action; Desegregation; Marketplace Matching; Fairness; Local Range; Education; Policy

February 2015
Article

'Open' Disclosure of Innovations, Incentives and Follow-on Reuse: Theory on Processes of Cumulative Innovation and a Field Experiment in Computational Biology

By: Kevin J. Boudreau and Karim R. Lakhani

Most of society's innovation systems―academic science, the patent system, open source, etc.―are "open" in the sense that they are designed to facilitate knowledge disclosure among innovators. An essential difference across innovation systems is whether disclosure is of... View Details

Keywords: Open Innovation; Cumulative Innovation; Incentives; Search; Disclosure And Access; Knowledge Sharing; Motivation and Incentives; Collaborative Innovation and Invention

SSRN

2020
Working Paper

How ESG Issues Become Financially Material to Corporations and Their Investors

By: George Serafeim

Management and disclosure of environmental, social and governance (ESG) issues have received substantial interest over the last decade. In this paper, we outline a framework of how ESG issues become financially material, affecting corporate profitability and valuation.... View Details

SSRN

Article

A Career Life-Cycle Perspective on Women's Health and Safety

By: Robert S. Kaplan, Chizoba L. Chukwura, Gregory H. Gorman, Vivian S. Lee, Chester B. Good, Kathleen L. Martin, Gregory A. Ator and Michael D. Parkinson

Women's health has demanded more attention from employers as women integrated into the workforce. Traditionally male-dominant fields and occupations require special attention to workplace design, physical standards for entry, employment practices, equipment, and health... View Details

Keywords: Women's Health; Healthcare Access; Workplace Design; Military Health System; Occupational Health; Medical Equipment ＆ Devices; Employees; Gender; Personal Development and Career

May 2024
Case

SofMedica Group: Managing Growth

By: Boris Groysberg and Sarah L. Abbott

SofMedica Group had expanded from its origins as a medical equipment distributor in Romania to a holding company with four business lines operating in six countries. This expansion had been driven by SofMedica’s mission: to make cutting edge medical technology... View Details

November 2021
Case

Tommy Hilfiger Adaptive: Fashion for All

By: Elizabeth A. Keenan, Sandra J. Sucher and Shalene Gupta

In Fall 2017, Tommy Hilfiger launched Tommy Hilfiger Adaptive, a line of adaptive and inclusive fashion apparel intended to make dressing easier. Now, Tommy Hilfiger is planning to launch Tommy Hilfiger Adaptive internationally in early 2020. The prospect of making... View Details

July 2020
Article

Lessons from the Impact of Price Regulation on the Pricing of Anticancer Drugs in Germany

By: Victoria D. Lauenroth, Aaron S. Kesselheim, Ameet Sarpatwari and Ariel Dora Stern

Worldwide spending on prescription drugs has increased dramatically in recent years. Although this increase has been particularly pronounced in the U.S., it remains largely unaddressed there. In Europe, however, different approaches to regulating drug prices have been... View Details

Keywords: Pharmaceuticals; Prescription Drug Costs; Drug Pricing; Access To Care; Cost Reduction; Health Care and Treatment; Price; Governing Rules, Regulations, and Reforms; Cost Management; Germany

2014
Working Paper

Private Equity's Diversification Illusion: Economic Comovement and Fair Value Reporting

By: Kyle Travis Welch

This study examines how accounting has informed private equity diversification claims and demand for private equity investments. Despite research showing private equity lacks portfolio diversification benefits, those marketing private equity assets continue to... View Details

SSRN

July–August 2013
Article

A Joint Model of Usage and Churn in Contractual Settings

By: Eva Ascarza and Bruce G.S. Hardie

As firms become more customer-centric, concepts such as customer equity come to the fore. Any serious attempt to quantify customer equity requires modeling techniques that can provide accurate multiperiod forecasts of customer behavior. Although a number of researchers... View Details

Keywords: Churn; Retention; Contractual Settings; Access Services; Hidden Markov Models; RFM; Latent Variable Models; Customer Value and Value Chain; Consumer Behavior

October 2017 (Revised November 2017)
Case

NYC311

By: Constantine E. Kontokosta, Mitchell Weiss, Christine Snively and Sarah Gulick

Joe Morrisroe, executive director for NYC311, had some gut instincts but no definitive answer to the question he was just asked by one of the mayor’s deputies: “Are some communities being underserved by 311? How do we know we are hearing from the right people?” Founded... View Details

2019
Book

Fintech, Small Business & the American Dream: How Technology Is Transforming Lending and Shaping a New Era of Small Business Opportunity

By: Karen G. Mills

Fintech, Small Business & the American Dream describes the needs of small businesses for capital and demonstrates how technology—novel data sources, artificial intelligence, machine learning—will transform the small business lending market. This market has been... View Details