Publications

Article

Small Worlds and Regional Innovation

Small-world networks have attracted much theoretical attention and are widely thought to enhance creativity. Yet empirical studies of their evolution and evidence of their benefits remain scarce. We develop and exploit a novel database on patent coauthorship to... View Details

Keywords: Geographic Location; Collaborative Innovation and Invention; Patents; Performance Productivity; Creativity; Social and Collaborative Networks

July 2019
Article

Evaluation of Economic and Clinical Outcomes Under Centers for Medicare & Medicaid Services Mandatory Bundled Payments for Joint Replacements

By: Derek A. Haas, Xiaoran Zhang, Robert S. Kaplan and Zirui Song

In 2016, the Centers for Medicare & Medicaid Services (CMS) launched its first mandatory bundled payment program, the Comprehensive Care for Joint Replacement (CJR) model, by randomizing metropolitan statistical areas (MSAs) into the payment model. The paper analyzed... View Details

Keywords: Medicare; Medicaid; Bundled Payments; Health Care and Treatment; Cost Management; Performance Evaluation; Outcome or Result

Register to Read

Forthcoming
Article

Using Satellites and Phones to Evaluate and Promote Agricultural Technology Adoption: Evidence from Smallholder Farms in India

By: Shawn Cole, Grady Killeen, Tomoko Harigaya and Aparna Krishna

This paper evaluates a low-cost, customized soil nutrient management advisory service in India. As a methodological contribution, we examine whether and in which settings satellite measurements may be effective at estimating both agricultural yields and treatment... View Details

2021
Working Paper

The Luck of the Draw: The Causal Effect of Physicians on Birth Outcomes

By: Arlen Guarin, Christian Posso, Estefania Saravia and Jorge Tamayo

Identifying the effect of physicians’ skills on health outcomes is a challenging task due to the nonrandom sorting between physicians and hospitals. We overcome this challenge by exploiting a Colombian government program that randomly assigned 2,126 physicians to 618... View Details

Keywords: Physicians' Health Skills; Health Birth Outcomes; Birthing Outcomes; Experimental Evidence; Health Care and Treatment; Competency and Skills; Outcome or Result; Health Industry; Colombia

July 2001
Case

Bobbie D'Alessandro and the Redesign of the Cambridge Rindge and Latin School

By: Linda A. Hill, Kristin Doughty and Ellen Pruyne

Bobbi D'Alessandro, the superintendent of the school system in Cambridge, MA, has just hired a new principal to lead a major redesign effort in the city's only high school. The need for reform had been evident since the late 1980s when school statistics highlighted... View Details

Keywords: Problems and Challenges; Business and Stakeholder Relations; Performance Improvement; Change Management; Secondary Education; Selection and Staffing; Leading Change; Education Industry; Cambridge

2025
Working Paper

Using Satellites and Phones to Evaluate and Promote Agricultural Technology Adoption: Evidence from Smallholder Farms in India

By: Shawn Cole, Grady Killeen, Tomoko Harigaya and Aparna Krishna

This paper evaluates a low-cost, customized soil nutrient management advisory service in India. As a methodological contribution, we examine whether and in which settings satellite measurements may be effective at estimating both agricultural yields and treatment... View Details

Keywords: Performance Evaluation; Technology Adoption; Measurement and Metrics; Analytics and Data Science; Agriculture and Agribusiness Industry; India

August, 2024
Article

Heuristics on Call: The Impact of Mobile-Phone-Based Business-Management Advice

By: Shawn Cole, Mukta Joshi and Antoinette Schoar

There is growing evidence that business training for micro-entrepreneurs can be effective. However, in-person training can be expensive and imposes costs on the target beneficiaries. This paper presents the results of a two-site randomized evaluation of a light-touch,... View Details

2000
Other Unpublished Work

Do Executive Stock Options Encourage Risk-Taking?

By: Randolph B. Cohen, Brian J. Hall and Luis M. Viceira

Executive stock options create incentives for executives to manage firms in ways that maximize firm market value. Since options increase in value with the volatility of the underlying stock, executive stock options provide managers with incentives to take actions that... View Details

Keywords: Risk and Uncertainty; Motivation and Incentives; Stock Options; Executive Compensation

21 Jun 2012
Working Paper Summaries

Information Technology and Boundary of the Firm: Evidence from Plant-Level Data

Keywords: by Chris Forman & Kristina McElheran

05 Jul 2006
Working Paper Summaries

Failing to Learn and Learning to Fail (Intelligently): How Great Organizations Put Failure to Work to Improve and Innovate

Keywords: by Mark D. Cannon & Amy C. Edmondson

2024
Working Paper

The Effects of Medical Debt Relief: Evidence from Two Randomized Experiments

By: Raymond Kluender, Neale Mahoney, Francis Wong and Wesley Yin

Two in five Americans have medical debt, nearly half of whom owe at least $2,500. Concerned by this burden, governments and private donors have undertaken large, high-profile efforts to relieve medical debt. We partnered with RIP Medical Debt to conduct two randomized... View Details

Keywords: Borrowing and Debt; Credit; Outcome or Result; Well-being; Personal Finance

2019
Working Paper

Stewardship Codes and Shareholder Voting on Disputed Ballot Measures

By: Trang T. Nguyen and Charles CY Wang

This study examines the impact of stewardship codes on investor voting behavior in disputed ballot measures-- where ISS's recommendation differs from management's recommendation-- across nine countries. U.S. institutional investors' voting behavior in adopting country... View Details

Keywords: Stewardship Codes; Investment; Voting; Behavior

September 1991 (Revised August 1994)
Background Note

Note on Pharmaceutical Industry Regulation

By: Willis M. Emmons III

Traces the evolution of U.S. regulatory policy towards the pharmaceutical industry over the course of the twentieth century. A major theme is the steady shift away from a policy of 'let the buyer beware' to the creation of a complex and time-consuming review process,... View Details

Keywords: Safety; Industry Growth; Marketing; Research and Development; Health Testing and Trials; Economics; Pharmaceutical Industry; United States

Research Summary

Sovereigns, Upstream Capital Flows and Global Imbalances

By: Laura Alfaro

We construct measures of net private and public capital flows for a large cross-section of developing countries considering both creditor and debtor side of the international debt transactions. Using these measures, we demonstrate that sovereign-to-sovereign... View Details

2024
Working Paper

The New Digital Divide

By: Mayana Pereira, Shane Greenstein, Raffaella Sadun, Prasanna Tambe, Lucia Ronchi Darre, Tammy Glazer, Allen Kim, Rahul Dodhia and Juan Lavista Ferres

We build and analyze new metrics of digital usage that leverage telemetry data collected by Microsoft during operating system updates across forty million Windows devices in U.S. households. These measures of US household digital usage are much more comprehensive than... View Details

Keywords: Mathematical Methods; Measurement and Metrics; Geographic Location; Behavior; Technology Adoption; Demographics

Register to Read

March 2024
Article

Human Capital Affects Religious Identity: Causal Evidence from Kenya

By: Livia Alfonsi, Michal Bauer, Julie Chytilová and Edward Miguel

We study how human capital and economic conditions causally affect the choice of religious denomination. We utilize a longitudinal dataset monitoring the religious history of more than 5,000 Kenyans over 20 years, in tandem with a randomized experiment (deworming) that... View Details

Keywords: Religion; Human Capital; Developing Countries and Economies; Welfare; Kenya