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- All HBS Web (185)
- Faculty Publications (52)
- 2024
- Working Paper
When Batteries Meet Hydrogen: Dual-Storage Investments for Load-Shifting Purposes
By: Christian Kaps and Simone Marinesi
Power systems account for nearly 40% of global emissions. As the world tries to reduce emissions by increasing renewable penetration, storage technologies are playing an increasingly important role in matching variable renewable supply with demand. Batteries have... View Details
Keywords: Environmental Sustainability; Renewable Energy; Transition; Utilities Industry; Utilities Industry
Kaps, Christian, and Simone Marinesi. "When Batteries Meet Hydrogen: Dual-Storage Investments for Load-Shifting Purposes." Working Paper, October 2024.
- May 2019 (Revised June 2021)
- Case
State of Charge: The Massachusetts Energy Storage Initiative
By: John R. Wells and Benjamin Weinstock
In early 2017, Judith Judson (Harvard Business School MBA, 2000), Commissioner of the Massachusetts Department of Energy Resources (DOER), was reflecting on the results of the initiative she had led to identify the contribution advanced electricity storage could make... View Details
Keywords: Energy Storage; Energy Generation; Programs; Policy; Strategy; Energy Industry; Utilities Industry; Massachusetts
Wells, John R., and Benjamin Weinstock. "State of Charge: The Massachusetts Energy Storage Initiative." Harvard Business School Case 719-448, May 2019. (Revised June 2021.)
- May 2024
- Article
True Costs of Uterine Artery Embolization: Time-Driven Activity-Based Costing in Interventional Radiology Over a 3-Year Period
By: Julia C. Bulman, Nicole H. Kim, Robert S. Kaplan, Sarah Schroeppel DeBacker, Olga R. Brook and Ammar Sarwar
The study used time-driven activity-based costing (TDABC) to estimate the costs to perform uterine artery embolization (UAE). Utilization times for patients undergoing outpatient UAE for fibroids or adenomyosis were captured from electronic health record timestamps and... View Details
Bulman, Julia C., Nicole H. Kim, Robert S. Kaplan, Sarah Schroeppel DeBacker, Olga R. Brook, and Ammar Sarwar. "True Costs of Uterine Artery Embolization: Time-Driven Activity-Based Costing in Interventional Radiology Over a 3-Year Period." Journal of the American College of Radiology 21, no. 5 (May 2024): 721–728.
- November 1992 (Revised May 1993)
- Case
American Mobile Satellite Corporation
By: Frank V. Cespedes and Laura Goode
American Mobile Satellite Corp. (AMSC) has a license to provide wireless mobile communications via satellite throughout the United States and 200 miles of coastal waters. The first satellite launch is scheduled for 1994 and, in the interim, AMSC is providing limited... View Details
Keywords: Wireless Technology; Decisions; Distribution Channels; Marketing Strategy; Product Development; Sales; Emerging Markets; Resource Allocation; Performance Capacity; Communications Industry; Information Technology Industry; United States
Cespedes, Frank V., and Laura Goode. "American Mobile Satellite Corporation." Harvard Business School Case 593-038, November 1992. (Revised May 1993.)
- Fall 2016
- Article
Global Talent Flows
By: Sari Pekkala Kerr, William R. Kerr, Çağlar Özden and Christopher Parsons
The global distribution of talent is highly skewed and the resources available to countries to develop and utilize their best and brightest vary substantially. The migration of skilled workers across countries tilts the deck even further. Using newly available data, we... View Details
Keywords: Geographic Location; Human Capital; Entrepreneurship; Global Range; Competency and Skills; Immigration
Kerr, Sari Pekkala, William R. Kerr, Çağlar Özden, and Christopher Parsons. "Global Talent Flows." Journal of Economic Perspectives 30, no. 4 (Fall 2016): 83–106.
- 2016
- Working Paper
Global Talent Flows
By: Sari Pekkala Kerr, William R. Kerr, Çağlar Özden and Christopher Parsons
The global distribution of talent is highly skewed and the resources available to countries to develop and utilize their best and brightest vary substantially. The migration of skilled workers across countries tilts the deck even further. Using newly available data, we... View Details
Kerr, Sari Pekkala, William R. Kerr, Çağlar Özden, and Christopher Parsons. "Global Talent Flows." Harvard Business School Working Paper, No. 17-026, October 2016.
- December 2023
- Article
When Should the Off-Grid Sun Shine at Night? Optimum Renewable Generation and Energy Storage Investments
By: Christian Kaps, Simone Marinesi and Serguei Netessine
Globally, 1.5 billion people live off the grid, their only access to electricity often limited to operationally-expensive fossil fuel generators. Solar power has risen as a sustainable and less costly option, but its generation is variable during the day and... View Details
Kaps, Christian, Simone Marinesi, and Serguei Netessine. "When Should the Off-Grid Sun Shine at Night? Optimum Renewable Generation and Energy Storage Investments." Management Science 69, no. 12 (December 2023): 7633–7650.
- May 2017
- Case
CNS Worldwide
By: Robert J. Dolan and Karthik Easwar
CNS Worldwide has long been the market share leader in the IaaS cloud server market, yet it has remained unprofitable for years. Industry capacity utilization is low, and prices have declined over 70% over the last decade. CNS is considering withdrawing from the market... View Details
Dolan, Robert J., and Karthik Easwar. "CNS Worldwide." Harvard Business School Brief Case 917-531, May 2017.
- February 2023
- Supplement
Graphic Packaging: Project Cowboy (A) Courseware
By: Benjamin C. Esty and Scott Mayfield
In July 2019, Graphic Packaging CEO Michael Doss was proposing a $600 million investment in a new machine to produce coated recycled board (CRB), a type of paper packaging used for consumer products (cups, cereal boxes, beverage boxes, etc.) that utilized recycled... View Details
- December 2023
- Article
Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency
By: Gunther Glenk, Philip Holler and Stefan Reichelstein
Widespread adoption of hydrogen as an energy carrier is widely believed to require continued advances in Power-to-Gas (PtG) technologies. Here we provide a comprehensive assessment of the dynamics of system prices and conversion efficiency for three currently prevalent... View Details
Keywords: Clean Technology; Green Hydrogen; Carbon Emissions; Decarbonization; Learning By Doing; Environment; Energy; Environmental Accounting; Environmental Management; Sustainable Cities; Cost Accounting; Innovation and Management; Technology Adoption; Energy Policy; Engineering; Green Technology; Utilities Industry; Utilities Industry; Utilities Industry; Utilities Industry; Utilities Industry; North America; South America; Africa; Europe; Asia
Glenk, Gunther, Philip Holler, and Stefan Reichelstein. "Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency." Energy & Environmental Science 16, no. 12 (December 2023): 6058–6070.
- Article
Describing Wait Time Bottlenecks for ED Patients Undergoing Head CT
By: Jonathan G. Rogg, Robert S. Huckman, Michael Lev, Ali Raja, Yuchiao Chang and Benjamin White
Study objectives: Facing increased utilization and subsequent capacity and budget constraints, EDs must better understand bottlenecks and their effect on process flow to improve process efficiency. The primary objective of this study was to identify bottlenecks in... View Details
Keywords: Health Care; Bottleneck; Health Care and Treatment; Operations; Health Industry; United States
Rogg, Jonathan G., Robert S. Huckman, Michael Lev, Ali Raja, Yuchiao Chang, and Benjamin White. "Describing Wait Time Bottlenecks for ED Patients Undergoing Head CT." American Journal of Emergency Medicine 35, no. 10 (October 2017): 1510–1513.
- February 2023 (Revised March 2025)
- Case
Graphic Packaging: Project Cowboy (A)
By: Benjamin C. Esty and E. Scott Mayfield
In July 2019, Graphic Packaging CEO Michael Doss was proposing a $600 million investment in a new machine to produce coated recycled board (CRB), a type of paper packaging used for consumer products (cups, cereal boxes, beverage boxes, etc.) that utilized recycled... View Details
Keywords: Capital Budgeting; Growth Management; Demand and Consumers; Duopoly and Oligopoly; Competitive Strategy; Competitive Advantage; Expansion; Value Creation; Supply and Industry; Pulp and Paper Industry; Manufacturing Industry; United States; North America
Esty, Benjamin C., and E. Scott Mayfield. "Graphic Packaging: Project Cowboy (A)." Harvard Business School Case 223-009, February 2023. (Revised March 2025.)
Graphic Packaging: Project Cowboy
In July 2019, Graphic Packaging CEO Michael Doss was proposing a $600 million investment in a new machine to produce coated recycled board (CRB), a type of paper packaging used for consumer products (cups, cereal boxes, beverage boxes, etc.) that utilized recycled... View Details
- October, 2022
- Article
The Economic Dynamics of Competing Power Generation Sources
By: Gunther Glenk and Stefan Reichelstein
Competing power generation sources have experienced considerable shifts in both their revenue potential and their costs in recent years. Here we introduce the concept of Levelized Profit Margins (LPM) to capture the changing unit economics of both intermittent and... View Details
Keywords: Renewable Energy; Intermittant; Cost Accounting; Profitability Analysis; Learning-by-doing; Cannibalization Effect; Energy; Environmental Management; Investment; Operations; Technological Innovation; Utilities Industry; Utilities Industry; Utilities Industry; Utilities Industry; Europe; North America; South America; Africa; Asia
Glenk, Gunther, and Stefan Reichelstein. "The Economic Dynamics of Competing Power Generation Sources." Art. 112758. Renewable and Sustainable Energy Reviews 168 (October, 2022).
- 05 Feb 2007
- Research & Ideas
Business and the Global Poor
life, just that the pecking order from the poor person's perspective is likely to be different. The shift we see is in a new understanding about who the customer is. That's why we think that more companies should be looking to leverage the productive View Details
Keywords: by Sean Silverthorne
- February 2011 (Revised November 2012)
- Case
Aquion Energy
By: Thomas R. Eisenmann and David Kiron
Leaders at Aquion Energy, a Pittsburgh-based battery start-up, are deciding on a market entry strategy. Should they pursue the large but unproven grid utility market or a smaller, but higher margin market? View Details
Keywords: Business Startups; Production; Business Strategy; Growth and Development Strategy; Innovation Strategy; Disruptive Innovation; Market Entry and Exit; Performance Capacity; Energy Industry
Eisenmann, Thomas R., and David Kiron. "Aquion Energy." Harvard Business School Case 811-047, February 2011. (Revised November 2012.)
The Treasure You Seek: A Guide to Developing and Leveraging Your Leadership Capital
Most leadership books are written for people who are already labeled as “leaders”—corporate execs, high-ranking managers, entrepreneurs. They may not speak to the underrepresented young person or uncommon experienced person with a dream to create change in the... View Details
- 2023
- Working Paper
Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency
By: Gunther Glenk, Philip Holler and Stefan Reichelstein
Widespread adoption of hydrogen as an energy carrier is widely believed to require continued advances in Power-to-Gas (PtG) technologies. Here we provide a comprehensive assessment of the dynamics of system prices and conversion efficiency for three currently prevalent... View Details
Keywords: Clean Tech; Decarbonization; Carbon Emissions; Learning By Doing; Environment; Energy; Environmental Management; Sustainable Cities; Price; Utilities Industry; Utilities Industry; Utilities Industry; Utilities Industry; Utilities Industry; Europe; North America; South America; Africa; Asia
Glenk, Gunther, Philip Holler, and Stefan Reichelstein. "Advances in Power-to-Gas Technologies: Cost and Conversion Efficiency." TRR 266 Accounting for Transparency Working Paper Series, No. 109, December 2022.
- June 2016
- Article
When Doctors Go to Business School: Career Choices of Physician-MBAs
By: Damir Ljuboja, Brian W. Powers, Benjamin Robbins, Robert S. Huckman, Krishna Yeshwant and Sachin Jain
There has been substantial growth in the number of physicians pursuing Master of Business Administration (MBA) degrees over the past decade, but there is continuing debate over the utility of these programs and the career outcomes of their graduates. The authors... View Details
Keywords: Medical Education; MD; MBA; Physicians; Executive Education; Training; Personal Development and Career; Health Care and Treatment; Health Industry; United States
Ljuboja, Damir, Brian W. Powers, Benjamin Robbins, Robert S. Huckman, Krishna Yeshwant, and Sachin Jain. "When Doctors Go to Business School: Career Choices of Physician-MBAs." American Journal of Managed Care 22, no. 6 (June 2016): e196–e198.