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- February 2025
- Article
Variation in Batch Ordering of Imaging Tests in the Emergency Department and the Impact on Care Delivery
By: Jacob C. Jameson, Soroush Saghafian, Robert S. Huckman and Nicole Hodgson
Objectives: To examine heterogeneity in physician batch ordering practices and measure the impact of a physician's tendency to batch order imaging tests on patient outcomes and resource utilization.
Study Setting and Design: In this retrospective study, we used... View Details
Study Setting and Design: In this retrospective study, we used... View Details
- February 2025
- Article
Innovations in Evaluating Ambulatory Costs of Cystic Fibrosis Care: A Comparative Study Across Multidisciplinary Care Centers in Ireland and the United States
By: Emma Brady, Ryan C. Perkins, Kate Cullen, Gregory S. Sawicki, Robert S. Kaplan and Gerardine Doyle
Lead clinicians at two large pediatric cystic fibrosis (CF) centers in the United States and Ireland measured and compared their ambulatory care costs. The clinicians selected three strata of patients (0–11 months, 1–5 years, and 6–17 years of age). Process maps were... View Details
- 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
- December 2024
- Case
Core Innovation Capital: Investing in Fintech for Good
In 2017, Arjan Schütte, founder of Core Innovation Capital, faced a decision on whether to invest in Hugo Insurance, an auto insurance startup. Core, an early-stage social impact VC firm, focused on “fintech for good,” by investing in financial services for low- to... View Details
- 2024
- Working Paper
Scaling Core Earnings Measurement with Large Language Models
By: Matthew Shaffer and Charles CY Wang
We study the application of large language models (LLMs) to the estimation of core earnings, i.e., a firm's persistent profitability from its core business activities. This construct is central to investors' assessments of economic performance and valuations. However,... View Details
- November 2024 (Revised January 2025)
- Case
Balancing Impact: Modeling the Future at British International Investment
By: Shawn Cole and Jonah Zahnd
In 2022, British International Investment (BII), the £8.1 billion development finance arm of the British government, implemented a new impact measurement system called the Impact Score to align its financial and impact objectives systematically. The tool was designed... View Details
- November–December 2024
- Article
Group Size and Its Impact on Diversity-Related Perceptions and Hiring Decisions in Homogeneous Groups
By: Aneesh Rai, Edward H. Chang, Erika Kirgios and Katherine L. Milkman
Why do some homogeneous groups face backlash for lacking diversity, whereas others escape censure? We show that a homogeneous group’s size changes how it is perceived and whether decision makers pursue greater diversity in its ranks. We theorize that people make... View Details
- 2024
- Working Paper
Lessons from an App Update at Replika AI: Identity Discontinuity in Human-AI Relationships
By: Julian De Freitas, Noah Castelo, Ahmet Uğuralp and Zeliha Uğuralp
Can consumers form deep emotional bonds with AI and be vested in AI identities over time? We
leverage a natural app-update event at Replika AI, a popular US-based AI companion, to shed
light on these questions. We find that customers feel closer to their AI companion... View Details
- 2024
- Working Paper
Ponzi Funds
By: Philippe van der Beck, Jean-Philippe Bouchaud and Dario Villamaina
Many active funds hold concentrated portfolios. Flow-driven trading causes price pressure, which
pushes up the funds’ existing positions resulting in realized returns. We decompose fund returns
into a price pressure (self-inflated) and a fundamental component and... View Details
- September 26, 2024
- Article
A Better Way to Measure Social Impact
By: Robert S. Kaplan and Constance Spitzer
All impact investors report the financial returns from their funds and investments, and many provide metrics on intended social outcomes, such as numbers of individuals served, or quality jobs created. But investors do not supply metrics about their impacts on... View Details
- 2024
- Working Paper
Does Private Equity Have Any Business Being in the Health Care Business?
By: Nori Gerardo Lietz and Zirui Song
Private Equity (“PE”) has come under increased scrutiny by the press, academics, and policymakers, as well as the public, for its investments in health care delivery. This scrutiny has been exacerbated by recent high profile hospital bankruptcies following PE... View Details
- 2024
- Working Paper
Winner Take All: Exploiting Asymmetry in Factorial Designs
By: Matthew DosSantos DiSorbo, Iavor I. Bojinov and Fiammetta Menchetti
Researchers and practitioners have embraced factorial experiments to simultaneously test multiple treatments, each with different levels. With the rise of technologies like Generative AI, factorial experimentation has become even more accessible: it is easier than ever... View Details
- May 2024 (Revised June 2024)
- Case
Together for Sustainability
This case documents the origin and development of Together for Sustainability (TfS), a chemical industry initiative dedicated to raising sustainability standards throughout the industry’s supply chains. In 2011, six Chief Procurement Officers (CPOs) from some of the... View Details
- March 2024
- Module Note
Accounting Standards for the 21st Century
By: Jonas Heese
Over the past two decades, accounting standards have evolved to meet the demands of a rapidly changing business environment. This module note focuses on understanding the impact of these standards on measuring firm performance and financial position in the context of a... View Details
- 2024
- Working Paper
Measuring the Impact of Purpose
By: Ranjay Gulati, Franz Wohlgezogen and David Shin
- 2024
- Working Paper
Precautionary Debt Capacity
By: Deniz Aydin and Olivia S. Kim
Firms with ample financial slack are unconstrained... or are they? In a field experiment
that randomly expands debt capacity on business credit lines, treated small-and-medium
enterprises (SMEs) draw down 35 cents on the dollar of expanded debt capacity in... View Details
- 2024
- Working Paper
Principles and Content for Downstream Emissions Disclosures
By: Robert S. Kaplan and Karthik Ramanna
In a previous paper, we proposed the E-liability carbon accounting algorithm for companies to measure and subsequently reduce their own and their suppliers’ emissions. Some investors and stakeholders, however, want companies to also be accountable for downstream... View Details
- 2024
- Working Paper
Open Devices and Slices: Evidence from Wi-Fi Equipment
By: Do Yoon Kim, Roberto Fontana and Shane Greenstein
Prior studies suggest that openness shapes the introduction of new products. This study
collects novel data on all routers and subcomponents introduced between 2000 and 2018. We
characterize each firm's position in a supply chain as upstream component providers... View Details
- 2024
- Article
Financial Constraints and Short-Term Planning Are Linked to Flood Risk Adaptation Gaps in U.S. Cities
By: Shirley Lu and Anya Nakhmurina
Adaptation is critical in reducing the inevitable impact of climate change. Here we study cities’ adaptation to elevated flood risk by introducing a linguistic measure of adaptation extracted from financial disclosures of 431 US cities over 2013–2020. While cities with... View Details
- January 2024
- Technical Note
The ICARUS Principles: What It Takes to Tackle the World
By: Debora L. Spar and Julia M. Comeau
Over the course of the 20th century, most of the world’s major multinational corporations framed their mission around Milton Friedman’s famous mantra: that the sole purpose of the firm is to maximize its shareholders’ profits. Recently, however, growing numbers of... View Details