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Show Results For
- All HBS Web
(2,463)
- People (6)
- News (579)
- Research (1,755)
- Events (11)
- Multimedia (14)
- Faculty Publications (1,385)
- Article
How Much Should We Trust Staggered Difference-In-Differences Estimates?
By: Andrew C. Baker, David F. Larcker and Charles C.Y. Wang
We explain when and how staggered difference-in-differences regression estimators, commonly applied to assess the impact of policy changes, are biased. These biases are likely to be relevant for a large portion of research settings in finance, accounting, and law that... View Details
Keywords: Difference In Differences; Staggered Difference-in-differences Designs; Generalized Difference-in-differences; Dynamic Treatment Effects; Mathematical Methods
Baker, Andrew C., David F. Larcker, and Charles C.Y. Wang. "How Much Should We Trust Staggered Difference-In-Differences Estimates?" Journal of Financial Economics 144, no. 2 (May 2022): 370–395. (Editor's Choice, May 2022; Jensen Prize, First Place, June 2023.)
- Article
Trends and Predictors of Biomedical Research Quality, 1990–2015: A Meta-Research Study
By: Maryaline Catillon
Keywords: Biomedical Research; R＆D; Innovation; Technology; Drug Trials; RCT; Health; Healthcare; Health Care And Treatment; Health Care Policy; Innovation and Invention; Innovation Strategy; Research and Development; Technological Innovation; Health Industry; Pharmaceutical Industry
Catillon, Maryaline. "Trends and Predictors of Biomedical Research Quality, 1990–2015: A Meta-Research Study." BMJ Open 9, no. 9 (September 2019).
- Article
Value of New Performance Information in Healthcare: Evidence from Japan
By: Susanna Gallani, Takehisa Kajiwara and Ranjani Krishnan
Mandatory measurement and disclosure of outcome measures are commonly used policy tools in
healthcare. The effectiveness of such disclosures relies on the extent to which the new information produced by the mandatory system is internalized by the healthcare... View Details
Keywords: Value Of Information; Feedback; Patient Satisfaction; Healthcare; Health Care and Treatment; Satisfaction; Information; Measurement and Metrics; Performance Improvement
Gallani, Susanna, Takehisa Kajiwara, and Ranjani Krishnan. "Value of New Performance Information in Healthcare: Evidence from Japan." International Journal of Health Economics and Management 20, no. 4 (December 2020): 319–357.
- 2024
- Working Paper
Incrementality Representation Learning: Synergizing Past Experiments for Intervention Personalization
This paper introduces Incrementality Representation Learning (IRL), a novel multitask representation learning framework that predicts heterogeneous causal effects of marketing interventions. By leveraging past experiments, IRL efficiently designs and targets... View Details
Keywords: Heterogeneous Treatment Effect; Multi-task Learning; Representation Learning; Personalization; Promotion; Deep Learning; Field Experiments; Customer Focus and Relationships; Customization and Personalization
Huang, Ta-Wei, Eva Ascarza, and Ayelet Israeli. "Incrementality Representation Learning: Synergizing Past Experiments for Intervention Personalization." Harvard Business School Working Paper, No. 24-076, June 2024.
- May 2020
- Article
Identifying Sources of Inefficiency in Health Care
By: Amitabh Chandra and Douglas O. Staiger
In medicine, the reasons for variation in treatment rates across hospitals serving similar patients are not well understood. Some interpret this variation as unwarranted and push standardization of care as a way of reducing allocative inefficiency. However, an... View Details
Keywords: Health Care and Treatment; Performance Efficiency; Performance Productivity; Mathematical Methods
Chandra, Amitabh, and Douglas O. Staiger. "Identifying Sources of Inefficiency in Health Care." Quarterly Journal of Economics 135, no. 2 (May 2020): 785–843.
- March 2016
- Article
Using Quality Improvement Methods and Time-Driven Activity-Based Costing to Improve Value-Based Cancer Care Delivery at a Cancer Genetics Clinic
By: R.Y. Tan, M. Met-Domestici, K. Zhou, A.B. Guzman, S.T. Lim, K.C. Soo, T.W. Feeley and J. Ngeow
Purpose:
To meet increasing demand for cancer genetic testing and improve value-based cancer care delivery, National Cancer Centre Singapore restructured the Cancer Genetics Service in 2014. Care delivery processes were redesigned. We sought to improve access by... View Details
To meet increasing demand for cancer genetic testing and improve value-based cancer care delivery, National Cancer Centre Singapore restructured the Cancer Genetics Service in 2014. Care delivery processes were redesigned. We sought to improve access by... View Details
Keywords: Cancer Treatment; Value Based Health Care; Time-Driven Activity-Based Costing; Health Care and Treatment; Quality; Performance Improvement; Activity Based Costing and Management
Tan, R.Y., M. Met-Domestici, K. Zhou, A.B. Guzman, S.T. Lim, K.C. Soo, T.W. Feeley, and J. Ngeow. "Using Quality Improvement Methods and Time-Driven Activity-Based Costing to Improve Value-Based Cancer Care Delivery at a Cancer Genetics Clinic." Journal of Oncology Practice 12, no. 3 (March 2016): 320–331. (e-Pub 1/2016. PMID: 26759493.)
- January 2017
- Case
The Six CEOs of Tyco International Ltd.
By: John R. Wells and Gabriel Ellsworth
In September 2016, Johnson Controls, Inc. completed the acquisition of Tyco International PLC, a $9.9 billion business with operating profits of $884 million. The purchase consideration was $14.4 billion. Although the deal was billed as a merger, Ireland-based Tyco... View Details
Keywords: Tyco; Dennis Kozlowski; Edward Breen; Fire Safety; Fire Protection; Security; Packaging; Securities And Exchange Commission; Fraud; Accounting; Accounting Audits; Earnings Management; Financial Statements; Goodwill Accounting; Acquisition; Mergers and Acquisitions; Business Conglomerates; Business Divisions; Business Exit or Shutdown; Business Growth and Maturation; Business Headquarters; Business Model; Business Organization; For-Profit Firms; Restructuring; Crime and Corruption; Engineering; Applied Optics; Chemicals; Construction; Metals and Minerals; Ethics; Finance; Cash Flow; Public Equity; Stock Options; Financing and Loans; Initial Public Offering; Profit; Revenue; Geographic Location; Geographic Scope; Global Range; Globalized Firms and Management; Multinational Firms and Management; Corporate Accountability; Corporate Disclosure; Health Care and Treatment; Business History; Executive Compensation; Selection and Staffing; Courts and Trials; Lawfulness; Lawsuits and Litigation; Business or Company Management; Goals and Objectives; Growth and Development Strategy; Market Entry and Exit; Public Ownership; Problems and Challenges; Strategy; Business Strategy; Competition; Competitive Strategy; Competitive Advantage; Consolidation; Corporate Strategy; Diversification; Expansion; Horizontal Integration; Value; Chemical Industry; Construction Industry; Consumer Products Industry; Electronics Industry; Energy Industry; Industrial Products Industry; Manufacturing Industry; Medical Devices and Supplies Industry; Mining Industry; Pharmaceutical Industry; Semiconductor Industry; Telecommunications Industry; Utilities Industry; Republic of Ireland; Switzerland; Bermuda; United States; New Hampshire
Wells, John R., and Gabriel Ellsworth. "The Six CEOs of Tyco International Ltd." Harvard Business School Case 717-459, January 2017.
- 2017
- Working Paper
Identifying Sources of Inefficiency in Health Care
By: Amitabh Chandra and Douglas O. Staiger
In medicine, the reasons for variation in treatment rates across hospitals serving similar patients are not well understood. Some interpret this variation as unwarranted and push standardization of care as a way of reducing allocative inefficiency. However, an... View Details
Keywords: Health Care and Treatment; Performance Efficiency; Performance Productivity; Mathematical Methods
Chandra, Amitabh, and Douglas O. Staiger. "Identifying Sources of Inefficiency in Health Care." NBER Working Paper Series, No. 24035, November 2017.
- 2024
- Working Paper
Tamoxifen—Reducing Breast Cancer Risks: Case Histories of Transformational Advances
By: Amar Bhidé, Srikant Datar and Katherine Stebbins
We describe the development of tamoxifen, considered a “gold standard” treatment for
millions of breast cancer patients. Specifically, we describe breast cancer treatments before tamoxifen’s
development; the initial development of tamoxifen from 1960 to 1973;... View Details
Keywords: Health Care and Treatment; Technological Innovation; Innovation and Invention; Innovation Strategy; Technology Adoption; Collaborative Innovation and Invention; Governing Rules, Regulations, and Reforms
Bhidé, Amar, Srikant Datar, and Katherine Stebbins. "Tamoxifen—Reducing Breast Cancer Risks: Case Histories of Transformational Advances." Harvard Business School Working Paper, No. 20-134, July 2020. (Revised May 2024.)
- 11 Oct 2016
- News
Seven Years Inside The Minds Of Four Dozen Corporate Criminals
- 2024
- Working Paper
Prozac—Controversial Blockbuster: Case Histories of Transformational Advances
By: Amar Bhidé, Srikant M. Datar and Katherine Stebbins
This case history describes the development of Prozac, a blockbuster drug that transformed
the treatment of depression – and became a cultural phenomenon in the United States. Specifically, we
chronicle the: 1) prior treatments for depression and the research that... View Details
Keywords: Health Care and Treatment; Technological Innovation; Innovation Strategy; Technology Adoption; Collaborative Innovation and Invention; Innovation and Invention; Governing Rules, Regulations, and Reforms
Bhidé, Amar, Srikant M. Datar, and Katherine Stebbins. "Prozac—Controversial Blockbuster: Case Histories of Transformational Advances." Harvard Business School Working Paper, No. 20-135, July 2020. (Revised May 2024.)
Importance of Being Causal
Causal inference is the study of how actions, interventions, or treatments affect outcomes of interest. The methods that have received the lion’s share of attention in the data science literature for establishing causation are variations of randomized... View Details
- November 2016 (Revised February 2017)
- Case
BrightStar Care: The Evolution of a Leadership Team
By: Boris Groysberg, Colleen Ammerman and John D. Vaughan
BrightStar Care was a rapidly growing franchise of home health care agencies. Founded by husband and wife team JD and Shelly Sun as a single agency near Chicago in 2002, BrightStar had opened nearly 300 franchises across the United States by 2016, generating over $300... View Details
Keywords: Health Care Services; Entrepreneurs; Board Of Directors; Boards Of Directors; Health Care Industry; Growth Strategy; Organizational Change; Brand Positioning; Entrepreneurial Organizations; Entrepreneurial Management; Franchising; Family-owned Business; Home Health Care; Managing Growth; Management Styles; Organizational Development; Talent Management; Women Executives; Women And Leadership; Business Startups; Family Business; Small Business; Talent and Talent Management; Governing and Advisory Boards; Health Care and Treatment; Human Capital; Leadership Development; Leadership Style; Business or Company Management; Growth and Development Strategy; Management Analysis, Tools, and Techniques; Management Skills; Management Style; Management Succession; Management Systems; Management Teams; Brands and Branding; Marketing Strategy; Strategy
Groysberg, Boris, Colleen Ammerman, and John D. Vaughan. "BrightStar Care: The Evolution of a Leadership Team." Harvard Business School Case 417-020, November 2016. (Revised February 2017.)
- March 2008
- Case
The Multiple Sclerosis Center of Atlanta
By: Regina E. Herzlinger and Alfred Martin
The Multiple Sclerosis Center of Atlanta wishes to expand beyond Georgia. The factors influencing this decision are discussed, including drug treatments currently available, and the impact of future drugs in the FDA pipeline as well as financing issues. View Details
Keywords: Decision Choices and Conditions; Financing and Loans; Health Care and Treatment; Health Disorders; Medical Specialties; Expansion; Health Industry; Atlanta
Herzlinger, Regina E., and Alfred Martin. "The Multiple Sclerosis Center of Atlanta." Harvard Business School Case 308-085, March 2008.
- 17 Jun 2020
- News
Assessing the Value of Pediatric Aerodigestive Care
- 2021
- Article
Masked and Distanced: A Qualitative Study of How Personal Protective Equipment and Distancing Affect Teamwork in Emergency Care
By: Tuna Cem Hayirli, Nicholas Stark, Aditi Bhanja, James Hardy, Christopher Peabody and Michaela J. Kerrissey
Background: Newly intensified use of personal protective equipment (PPE) in emergency departments presents teamwork challenges affecting the quality and safety of care at the frontlines.
Objective: We conducted a qualitative study to categorize and... View Details
Objective: We conducted a qualitative study to categorize and... View Details
Keywords: COVID-19; Teamwork; Emergency Service; Hospital; Quality Of Health Care; Health Pandemics; Health Care and Treatment; Quality; Groups and Teams; Communication
Hayirli, Tuna Cem, Nicholas Stark, Aditi Bhanja, James Hardy, Christopher Peabody, and Michaela J. Kerrissey. "Masked and Distanced: A Qualitative Study of How Personal Protective Equipment and Distancing Affect Teamwork in Emergency Care." International Journal for Quality in Health Care 33, no. 2 (2021): mzab069.
- February 2018
- Article
Retention Futility: Targeting High-Risk Customers Might Be Ineffective.
By: Eva Ascarza
Companies in a variety of sectors are increasingly managing customer churn proactively, generally by detecting customers at the highest risk of churning and targeting retention efforts towards them. While there is a vast literature on developing churn prediction models... View Details
Keywords: Retention/churn; Proactive Churn Management; Field Experiments; Heterogeneous Treatment Effect; Machine Learning; Customer Relationship Management; Risk Management
Ascarza, Eva. "Retention Futility: Targeting High-Risk Customers Might Be Ineffective." Journal of Marketing Research (JMR) 55, no. 1 (February 2018): 80–98.
- 2018
- Working Paper
Two Hundred Years of Health and Medical Care: The Importance of Medical Care for Life Expectancy Gains
By: Maryaline Catillon, David Cutler and Thomas Getzen
Using two hundred years of national and Massachusetts data on medical care and health, we examine how central medical care is to life expectancy gains. While common theories about medical care cost growth stress growing demand, our analysis highlights the importance of... View Details
Keywords: Mortality; Life Expectancy; Medical Care; Productivity; Public Health; Healthcare Spending; Spending Per Year Of Life Gained; Personal Medicine; Technophysio Evolution; Health; Economics; Health Care and Treatment; Spending; Data and Data Sets; Health Industry
Catillon, Maryaline, David Cutler, and Thomas Getzen. "Two Hundred Years of Health and Medical Care: The Importance of Medical Care for Life Expectancy Gains." NBER Working Paper Series, No. 25330, December 2018.
- 09 Jan 2018
- Working Paper Summaries