Publications
Publications
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- All HBS Web
(1,557)
- Faculty Publications (358)
- Article
Expected Stock Returns Worldwide: A Log-Linear Present-Value Approach
By: Akash Chattopadhyay, Matthew R. Lyle and Charles C.Y. Wang
This study provides the first large-scale study of the performance of expected-return proxies (ERPs) internationally. Analyst-forecast-based ICCs are sparsely populated and not robustly associated with future returns. Earnings-model-forecast-based ICCs are... View Details
- February 8, 2022
- Article
Time-Driven Activity-Based Cost Comparison of Treating Five Acute, Low-Severity Conditions
By: Alan Yang, Andy Hung-Yi Lee, Joseph W. Kopp, Katherine D. Rose, Adam M. Licurse, Philip D. Anderson and Robert S. Kaplan
In 2017, patients made 145 million visits to emergency departments (EDs), generating $76.3 billion in charges. About a third of ED visits, however, were for conditions that were treatable in lower-resourced settings. We used time-driven activity-based costing (TDABC)... View Details
- January 2022
- Teaching Note
'Why I Blew the Whistle': Mauro Botta v. PwC
By: Aiyesha Dey and Jonas Heese
Teaching Note for HBS Case No. 122-005. View Details
- February 2022
- Article
Client Concerns about Information Spillovers from Sharing Audit Partners
By: Jung Koo Kang, Clive Lennox and Vivek Pandey
We hypothesize that companies in the same product market avoid sharing the same audit partner when they are concerned about possible information spillovers. Consistent with our hypothesis, we find that product market rivals are less likely to share the same partner... View Details
- 2022
- Article
Improving Efficiency and Reducing Costs of MRI-Guided Prostate Brachytherapy Using Time-Driven Activity-Based Costing
By: Nikhil G. Thaker, Rajat J. Kudchadker, James R. Incalcaterra, Tharakeswara K. Bathala, Robert S. Kaplan, Ankit Agarwal, Deborah A. Kuban, Benjamin D. Frank, Prajnan Das, Thomas W. Feeley and Steven J. Frank
Integrated quality improvement (QI) and cost reduction strategies can help increase value in cancer care. We applied standard QI and TDABC methods to improve workflow efficiency and reduce costs for MRI-guided prostate brachytherapy. We constructed process maps,... View Details
- November–December 2021
- Article
Successfully Implementing TDABC in Health-Care Provider Organizations
By: Susanna Gallani and Gregory Sabin
This article describes some of the common obstacles that challenge the success of TDABC implementation in health-care provider organizations and suggests potential remedies and preventive measures. View Details
- 2021
- Working Paper
The Green Bonding Hypothesis: How Do Green Bonds Enhance the Credibility of Environmental Commitments?
By: Shirley Lu
This paper proposes and provides evidence on a green bonding hypothesis, where green bonds act as a commitment device that subjects firms to institutions holding them accountable to their environmental promises. I find that green-bond issuers face higher climate change... View Details
- 2024
- Working Paper
What Drives Variation in Investor Portfolios? Estimating the Roles of Beliefs and Risk Preferences
By: Mark Egan, Alexander MacKay and Hanbin Yang
We present an empirical model of portfolio choice that allows for the nonparametric estimation of investors' (subjective) expectations and risk preferences. Utilizing a comprehensive dataset of 401(k) plans from 2009 through 2019, we explore heterogeneity in asset... View Details
- November 2021 (Revised November 2023)
- Case
Hitting Home: Amazon and Mary's Place
By: Paul M. Healy, Debora L. Spar and Amy Klopfenstein
In 2020, Amazon, the $386 billion online retail behemoth, built an eight-story shelter for women and families experiencing homelessness on its expanding headquarters in Seattle, Washington. The shelter, operated in partnership with a non-profit organization known as... View Details
- Article
Accounting for Climate Change
By: Robert S. Kaplan and Karthik Ramanna
Corporations are facing growing pressure—from investors, advocacy groups, politicians, and even business leaders themselves—to reduce greenhouse gas (GHG) emissions from their operations and their supply and distribution chains. About 90% of the companies in the S&P... View Details
- November 2021
- Article
Determining Variable Costs in the Acute Urolithiasis Cycle of Care Through Time-driven Activity-based Costing
By: Tyler R. McClintock, David F. Friedlander, Aiden Y. Feng, Mahek A. Shah, Daniel J. Pallin, Steven L. Chang, Angela M. Bader, Thomas W. Feeley, Robert S. Kaplan and George E. Haleblian
Objective. To characterize full cycle of care costs for managing an acute ureteral stone using time-driven activity-based costing.
Methods. We defined all phases of care for patients presenting with an acute ureteral stone and built an... View Details
Methods. We defined all phases of care for patients presenting with an acute ureteral stone and built an... View Details
- October 7, 2021
- Article
Carbon Might Be Your Company’s Biggest Financial Liability
By: Robert G. Eccles and John Mulliken
The price of carbon may be zero in many places today, but it’s unlikely to remain zero for long. That means that many companies have hidden liabilities on their books. To cover their carbon short position, executives can take several steps: Measure the position in... View Details
- Article
Supporting Value-Based Health Care—Aligning Financial and Legal Accountability
By: Mark M. Zaki, Anupam B. Jena and Amitabh Chandra
U.S. health care payment and delivery-system reforms have focused on improving care by making organizations accountable for outcomes, quality, and costs. Payers have supported the implementation of accountable care organizations (ACOs), bundled-payment models, and... View Details
- Article
A Cost Comparison of Cataract Surgeries in Three Countries—United States, India, and Nepal
By: Jiayin Xue, John Hinkle, Mary-Grace Reeves, Luo Luo Zheng, Vengadesan Natarajan, Shyam Vyas, Radhika Upreti Oli, Matt Oliva, Robert S. Kaplan, Arnold Milstein, Geoff Tabin, Jeffrey L. Goldberg and Kevin Schulman
U.S.-based cataract surgeries are costly compared with those performed in high-quality Indian and Nepalese eye centers. The authors used time-driven activity-based costing to evaluate phacoemulsification surgery across four sites: a U.S.-based academic hospital... View Details
- 2021
- Working Paper
How to Fix ESG Reporting
By: Robert S. Kaplan and Karthik Ramanna
Investors, advocacy groups, academics, and the 200 CEOs of the US Business Roundtable have asked corporations to take on an added purpose beyond a narrow pursuit of shareholder value. In response, many companies now issue ESG (Environmental, Societal, and Governance)... View Details
Keywords: ESG Reporting; Sustainability; Corporate Purpose; Greenhouse Gas; Activity-Based Costing; Environmental Sustainability; Environmental Management; Corporate Social Responsibility and Impact; Measurement and Metrics; Goals and Objectives; Agreements and Arrangements; Corporate Accountability
- July 2021 (Revised December 2021)
- Case
Pershing Square's Pandemic Trade (A)
By: Emil N. Siriwardane, Luis M. Viceira, Dean Xu and Lucas Baker
This case explores the decision that Bill Ackman, CEO and founder of the hedge fund Pershing Square Capital, was considering in late February 2020 about hedging the exposure of the fund’s portfolio from the potential financial fallout ensuing from an extreme event like... View Details
- July 2021 (Revised July 2022)
- Case
Brigham & Women's Hospital: Using Patient Reported Outcomes to Improve Breast Cancer Care
By: Robert S. Kaplan, Navraj S. Nagra and Syed S. Shehab
Dr. Andrea Pusic, breast cancer reconstruction surgeon, wants to extend outcomes measurement beyond traditional surgical metrics of infections, complications, and survival rates. The case describes her development of a new mobile phone app, which collects patients’... View Details
- July 2021
- Article
Information Transparency, Multihoming, and Platform Competition: A Natural Experiment in the Daily Deals Market
By: Hui Li and Feng Zhu
Platform competition is shaped by the likelihood of multi-homing (i.e., complementors or consumers adopt more than one platform). To take advantage of multi-homing, platform firms often attempt to motivate their rivals’ high-performing complementors to adopt their own... View Details
- April 2021 (Revised August 2024)
- Case
The Turnaround at Ford Motor Company
By: Amy C. Edmondson and Olivia Jung
This case describes the corporate turnaround of the Ford Motor Company under the charismatic leadership of Alan Mulally. Ford was in deep trouble in the early 2000s as its prices and debt ratings plummeted and employee morale suffered. In 2006, the company anticipated... View Details
- 2021
- Working Paper
Diagnosing Quality: Learning, Amenities, and the Demand for Health Care
By: Achyuta Adhvaryu, Emilio Gutierrez, Anant Nyshadham and Jorge Tamayo
We study the role of amenities in increasing demand for underutilized healthcare services. We evaluate the offer of a high-amenity diagnostic consultation for cataracts with a randomized price and find that a lower price for the high-amenity consultation increases... View Details