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- January 1982
- Background Note
Learning Curve
Sandretto, Michael J. "Learning Curve." Harvard Business School Background Note 182-130, January 1982.
- November 2015
- Article
Influence of Experience and the Surgical Learning Curve on Long-term Patient Outcomes in Cardiac Surgery
By: Bryan M. Burt, Andrew W. ElBardissi, Robert S. Huckman, Lawrence H. Cohn, Marisa W. Cevasco, James D. Rawn, Sary F. Aranki and John G. Byrne
OBJECTIVE: We hypothesized that increased post-graduate surgical experience correlates with improved operative efficiency and long-term survival in standard cardiac surgery procedures.
METHODS: Utilizing a prospectively collected retrospective database,... View Details
METHODS: Utilizing a prospectively collected retrospective database,... View Details
Keywords: Service Delivery; Value; Health Care and Treatment; Experience and Expertise; Health Industry
Burt, Bryan M., Andrew W. ElBardissi, Robert S. Huckman, Lawrence H. Cohn, Marisa W. Cevasco, James D. Rawn, Sary F. Aranki, and John G. Byrne. "Influence of Experience and the Surgical Learning Curve on Long-term Patient Outcomes in Cardiac Surgery." Journal of Thoracic and Cardiovascular Surgery 150, no. 5 (November 2015): 1061–1067.
- February 2021
- Tutorial
Assessing Prediction Accuracy of Machine Learning Models
By: Michael Toffel and Natalie Epstein
This video describes how to assess the accuracy of machine learning prediction models, primarily in the context of machine learning models that predict binary outcomes, such as logistic regression, random forest, or nearest neighbor models. After introducing and... View Details
- January 2021
- Article
Machine Learning for Pattern Discovery in Management Research
By: Prithwiraj Choudhury, Ryan Allen and Michael G. Endres
Supervised machine learning (ML) methods are a powerful toolkit for discovering robust patterns in quantitative data. The patterns identified by ML could be used for exploratory inductive or abductive research, or for post-hoc analysis of regression results to detect... View Details
Keywords: Machine Learning; Supervised Machine Learning; Induction; Abduction; Exploratory Data Analysis; Pattern Discovery; Decision Trees; Random Forests; Neural Networks; ROC Curve; Confusion Matrix; Partial Dependence Plots; AI and Machine Learning
Choudhury, Prithwiraj, Ryan Allen, and Michael G. Endres. "Machine Learning for Pattern Discovery in Management Research." Strategic Management Journal 42, no. 1 (January 2021): 30–57.
- August 2020 (Revised September 2020)
- Technical Note
Assessing Prediction Accuracy of Machine Learning Models
The note introduces a variety of methods to assess the accuracy of machine learning prediction models. The note begins by briefly introducing machine learning, overfitting, training versus test datasets, and cross validation. The following accuracy metrics and tools... View Details
Keywords: Machine Learning; Statistics; Econometric Analyses; Experimental Methods; Data Analysis; Data Analytics; Forecasting and Prediction; Analytics and Data Science; Analysis; Mathematical Methods
Toffel, Michael W., Natalie Epstein, Kris Ferreira, and Yael Grushka-Cockayne. "Assessing Prediction Accuracy of Machine Learning Models." Harvard Business School Technical Note 621-045, August 2020. (Revised September 2020.)
- 2022
- Working Paper
The Fed and the Secular Decline in Interest Rates
In this paper I document a striking fact: a narrow window around Fed meetings fully captures the secular decline in U.S. Treasury yields since 1980. By contrast, yield movements outside this window are transitory and wash out over time. This is surprising because the... View Details
Keywords: United States Treasury; Monetary Policy; Yield Curve; Central Banking; Interest Rates; Valuation
Hillenbrand, Sebastian. "The Fed and the Secular Decline in Interest Rates." Working Paper, January 2022.
- 13 Jun 2005
- Research & Ideas
From Turf Wars to Learning Curves: How Hospitals Adopt New Technology
influential…, PTCA has been used less frequently than in hospitals with less influential surgeons." And even if PTCA and other innovations make it past initial gatekeepers, it's a long road to adoption because of learning View Details
- August 2013 (Revised November 2020)
- Case
Tesla Motors
In mid-2013, Tesla Motors was riding a wave of success: It had launched its first really mass-produced car—the model S—to rave reviews; had recently raised first-year production targets; and had started taking orders for its next car, the Model X. Tesla seemed to be on... View Details
Keywords: Barriers To Entry; Economic Analysis; Learning Curve; Economies Of Scale; Innovation; Market Entry; Sustainable Competitive Advantage; Vision; Strategy And Leadership; Strategy; Competitive Strategy; Market Entry and Exit; Competitive Advantage; Technological Innovation; Leadership; Learning; Economics; Analysis; Auto Industry
Van den Steen, Eric. "Tesla Motors." Harvard Business School Case 714-413, August 2013. (Revised November 2020.)
- September 2009
- Article
A Detailed Analysis of the Reduction Mammaplasty Learning Curve: A Statistical Process Model for Approaching Surgical Performance Improvement
By: Matthew Carty MD, Rodney Chan, Robert S. Huckman, Daniel C. Snow and Dennis Orgill
Background: The increased focus on quality and efficiency improvement within academic surgery has met with variable success among plastic surgeons. Traditional surgical performance metrics, such as morbidity and mortality, are insufficient to improve the... View Details
Keywords: Experience and Expertise; Health Care and Treatment; Medical Specialties; Outcome or Result; Performance Efficiency; Performance Improvement
Carty, Matthew, MD, Rodney Chan, Robert S. Huckman, Daniel C. Snow, and Dennis Orgill. "A Detailed Analysis of the Reduction Mammaplasty Learning Curve: A Statistical Process Model for Approaching Surgical Performance Improvement." Plastic and Reconstructive Surgery 124, no. 3 (September 2009): 706–714.
- 04 Apr 2011
- Research & Ideas
Attention Medical Shoppers: What Health Care Can Learn from Walmart and Amazon
percent of health care costs. Furthermore, when comparing health care at US hospitals, "The bell curve for quality and results does not match the bell curve for costs," he said. "There is a... View Details
- July 11, 2024
- Article
Research: New Hires’ Psychological Safety Erodes Quickly
By: Derrick P. Bransby, Michael J. Kerrissey and Amy C. Edmondson
Across industries, from manufacturing to health care, the luxury of waiting years to benefit from new talent is long gone. Thriving in today’s dynamic economy means bringing new hires up the learning curve faster than ever. Yet, the authors’ latest research suggests... View Details
Bransby, Derrick P., Michael J. Kerrissey, and Amy C. Edmondson. "Research: New Hires’ Psychological Safety Erodes Quickly." Harvard Business Review Digital Articles (July 11, 2024).
- Summer 2016
- Article
The Real Lessons From Kodak's Decline
By: Willy C. Shih
Eastman Kodak is often mischaracterized as a company whose managers didn't recognize soon enough that digital technology would decimate its traditional business. However, what really happened at Kodak is much more complicated—and instructive. Kodak suffered from a... View Details
Keywords: Technological Change; Disruption; Ecosystem; Semiconductors; Photography; Scaling-up; Scaling; Organizational Change and Adaptation; Information Technology; Product; Consumer Products Industry; United States
Shih, Willy C. "The Real Lessons From Kodak's Decline." MIT Sloan Management Review 57, no. 4 (Summer 2016): 11–13.
- July 2001 (Revised March 2002)
- Case
Nasdaq Stock Market, Inc., The
By: Andre F. Perold and Austin K Scee
NASDAQ's mission "to facilitate capital formation" is threatened by the emergence of Electronic Communication Networks, which are not as heavily regulated by the SEC. This case reviews the development of NASDAQ and its evolution from a loose network of broker-dealers... View Details
Keywords: Capital Markets; Stocks; Financial Markets; Governing Rules, Regulations, and Reforms; Innovation Strategy; Performance Efficiency; Perspective
Perold, Andre F., and Austin K Scee. "Nasdaq Stock Market, Inc., The." Harvard Business School Case 202-008, July 2001. (Revised March 2002.)
- 2019
- Working Paper
The Future of Executive Development: The CLO's Compass and The Executive Programs Designer's Guide
By: Mihnea Moldoveanu and Das Narayandas
Executive education worldwide has entered a period of disruption catalyzed by the digitalization of content, connectivity, and communication—while the demand for managerial skills is growing. The forces of disintermediation, disaggregation, and decoupling are creating... View Details
Keywords: Digitalization; Executive Education; Disruption; Leadership Development; Management Skills; Curriculum and Courses; Internet and the Web; Design
Moldoveanu, Mihnea, and Das Narayandas. "The Future of Executive Development: The CLO's Compass and The Executive Programs Designer's Guide." Harvard Business School Working Paper, No. 20-060, November 2019.
- 2023
- Article
Experimental Evaluation of Individualized Treatment Rules
By: Kosuke Imai and Michael Lingzhi Li
The increasing availability of individual-level data has led to numerous applications of individualized (or personalized) treatment rules (ITRs). Policy makers often wish to empirically evaluate ITRs and compare their relative performance before implementing them in a... View Details
Keywords: Causal Inference; Heterogeneous Treatment Effects; Precision Medicine; Uplift Modeling; Analytics and Data Science; AI and Machine Learning
Imai, Kosuke, and Michael Lingzhi Li. "Experimental Evaluation of Individualized Treatment Rules." Journal of the American Statistical Association 118, no. 541 (2023): 242–256.
- December 1991 (Revised October 1998)
- Case
Eli Lilly and Co.: Manufacturing Process Technology Strategy--1991
By: Gary P. Pisano, Steven C. Wheelwright and Jonathan West
Outlines the evolution of Lilly's corporate manufacturing strategy over the past decade. The corporate vice president of manufacturing must decide on the next phase of Lilly's strategy for the early 1990s, as well as to what extent and what role process development... View Details
Keywords: Cost vs Benefits; Management Practices and Processes; Industry Structures; Product Development; Production; Research and Development; Competitive Advantage; Corporate Strategy; Manufacturing Industry
Pisano, Gary P., Steven C. Wheelwright, and Jonathan West. "Eli Lilly and Co.: Manufacturing Process Technology Strategy--1991." Harvard Business School Case 692-056, December 1991. (Revised October 1998.)
- August 2018 (Revised September 2018)
- Supplement
LendingClub (C): Gradient Boosting & Payoff Matrix
By: Srikant M. Datar and Caitlin N. Bowler
This case builds directly on the LendingClub (A) and (B) cases. In this case students follow Emily Figel as she builds an even more sophisticated model using the gradient boosted tree method to predict, with some probability, whether a borrower would repay or default... View Details
Keywords: Data Analytics; Data Science; Investment; Financing and Loans; Analytics and Data Science; Analysis; Forecasting and Prediction
Datar, Srikant M., and Caitlin N. Bowler. "LendingClub (C): Gradient Boosting & Payoff Matrix." Harvard Business School Supplement 119-022, August 2018. (Revised September 2018.)
- July 2010
- Supplement
Marketing Analysis Toolkit: Pricing and Profitability Analysis (CW)
By: Thomas J. Steenburgh and Jill Avery
Pricing is one of the most difficult decisions marketers make and the one with the most direct and immediate impact on the firm's financial position. This toolkit will introduce the fundamental terminology and calculations associated with pricing and profitability... View Details
- 1998
- Journal Article
Ford's Model-T: Pricing over the Product Life Cycle
The pricing decisions monopolistic firms make over time are determined to a large extent by the complex interplay of two distinct sets of elements: demand- and supply-based considerations. Demand factors include the possibilities of (a) exercising dynamic price... View Details
Keywords: Experience and Expertise; Decisions; Forecasting and Prediction; Cost; Price; Information; Demand and Consumers; Monopoly; Product; Sales; Complexity; Auto Industry
Casadesus-Masanell, Ramon. "Ford's Model-T: Pricing over the Product Life Cycle." Abante: Estudios en dirección de empresas 1, no. 2 (1998): 143–65.