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Publications

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  • All HBS Web  (150)
    • Faculty Publications  (8)

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    • All HBS Web  (150)
      • Faculty Publications  (8)

      by Thomas F. Hellmann Remove by Thomas F. Hellmann →

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      • February 2022 (Revised May 2025)
      • Case

      Resident 2020

      By: Jeffrey F. Rayport and Thomas O. Jones
      Launched in 2016, Resident was a leading player in the direct-to-consumer bed-in-a-box mattress market, where it was one of at least 175 venture-backed companies competing in the space. By late 2020, it had realized over $500 million in revenue, profitability in the... View Details
      Keywords: Digital Marketing; Business Growth and Maturation; Operations; Entrepreneurship; Competitive Strategy; Initial Public Offering; Decisions; Marketing Strategy; Cash Flow; Demand and Consumers
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      Rayport, Jeffrey F., and Thomas O. Jones. "Resident 2020." Harvard Business School Case 822-114, February 2022. (Revised May 2025.)
      • 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
      Keywords: Time-Driven Activity-Based Costing; Health Care and Treatment; Cost; Activity Based Costing and Management
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      McClintock, Tyler R., 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. "Determining Variable Costs in the Acute Urolithiasis Cycle of Care Through Time-driven Activity-based Costing." Urology 157 (November 2021): 107–113.
      • March 2021 (Revised July 2021)
      • Case

      Resident

      By: Jeffrey F. Rayport and Thomas O. Jones
      Launched in 2016, Resident was a leading player in the direct-to-consumer bed-in-a-box mattress market, where it was one of at least 175 venture-backed companies competing in the space. By late 2020, it had realized over $500 million in revenue, profitability in the... View Details
      Keywords: Digital Marketing; Business Growth and Maturation; Operations; Entrepreneurship; Competitive Strategy; Initial Public Offering; Decisions; Marketing Strategy; Cash Flow; Demand and Consumers
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      Rayport, Jeffrey F., and Thomas O. Jones. "Resident." Harvard Business School Case 821-090, March 2021. (Revised July 2021.)
      • March 2017 (Revised October 2018)
      • Case

      Catalant: The Future of Work?

      By: Thomas Eisenmann, Jeffrey F. Rayport and Christine Snively
      Catalant, founded in 2013 as an online marketplace where MBAs could bid on consulting projects posted by small- to medium-sized businesses, had expanded by 2016 to provide Fortune 1000 companies with access to over 35,000 independent experts. The founders envisioned... View Details
      Keywords: Entrepreneurship; Human Resources; Recruitment; Labor; Market Platforms; Growth and Development Strategy; Employment Industry; Consulting Industry; United States
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      Eisenmann, Thomas, Jeffrey F. Rayport, and Christine Snively. "Catalant: The Future of Work?" Harvard Business School Case 817-103, March 2017. (Revised October 2018.)
      • 5 Feb 2013
      • Conference Presentation

      Financing Entrepreneurial Growth

      By: Tom Alberg, Andrew A. Bogan, Harold Bradley, Robert D. Cooter, Monika Gruter Cheney, Oliver R. Goodenough, William R. Hambrecht, Frank Hatheway, Thomas F. Hellmann, Marianne Hudson, Jared Konczal, Josh Lerner, Robert E. Litan, Diane Mulcahy, Ramana Nanda, Frank Partnoy, Joe Ratterman, Nava Ravikant, Jay R. Ritter, Alicia Robb, David T. Robinson, Allison Schrager, Barry Silbert, E. R. Sirri, Daniel Stangler and Sharon Vosmek

      Despite recent innovations in entrepreneurial finance, particularly at the early stage of business creation, many new and young companies continue to face hurdles to acquire capital.

      The Kauffman Foundation addressed current challenges and opportunities in... View Details

      Keywords: Finance; Entrepreneurial Finance; Venture Capital; Entrepreneurship; United States
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      Alberg, Tom, Andrew A. Bogan, Harold Bradley, Robert D. Cooter, Monika Gruter Cheney, Oliver R. Goodenough, William R. Hambrecht, Frank Hatheway, Thomas F. Hellmann, Marianne Hudson, Jared Konczal, Josh Lerner, Robert E. Litan, Diane Mulcahy, Ramana Nanda, Frank Partnoy, Joe Ratterman, Nava Ravikant, Jay R. Ritter, Alicia Robb, David T. Robinson, Allison Schrager, Barry Silbert, E. R. Sirri, Daniel Stangler, and Sharon Vosmek. "Financing Entrepreneurial Growth." Paper presented at the State of Entrepreneurship Address, Ewing Marion Kauffman Foundation, Washington, DC, USA, February 5, 2013.
      • April 2011 (Revised April 2012)
      • Case

      Angels in British Columbia

      By: Josh Lerner, Thomas Hellmann and Ilkin Ilyaszade
      The case study provides an overview of the angel investment practices and describes government policies towards angel and venture capital investing in British Columbia, Canada. It focuses in particular on the Equity Capital Program (BCECP henceforth), which provides... View Details
      Keywords: Venture Capital; Private Equity; Investment; Policy; Taxation; Performance Improvement; Programs; British Columbia
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      Lerner, Josh, Thomas Hellmann, and Ilkin Ilyaszade. "Angels in British Columbia." Harvard Business School Case 811-100, April 2011. (Revised April 2012.)
      • October 2003 (Revised March 2004)
      • Case

      Symbian: Setting the Mobility Standard

      By: Fernando F. Suarez and Thomas R. Eisenmann
      Symbian, a joint venture owned by companies who collectively sold a dominant share of the world's cell phones, faced competition from Microsoft in developing the operating system for "smartphones," which integrated mobile communications and computing functions. In... View Details
      Keywords: Competition; Joint Ventures; Information Technology; Software; Wireless Technology; Mobile Technology; Information Technology Industry; Telecommunications Industry
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      Suarez, Fernando F., and Thomas R. Eisenmann. "Symbian: Setting the Mobility Standard." Harvard Business School Case 804-076, October 2003. (Revised March 2004.)
      • November 2002 (Revised October 2003)
      • Supplement

      Anne F. Baird

      By: Leslie A. Perlow and Thomas J. DeLong
      Presents profiles written by six members of the HBS Class of 1976 from the 10th and 20th reunions. The six alumni represent a cross section of the class of 1976 and provide a snapshot of life at the time of the reunions. View Details
      Keywords: Personal Development and Career
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      Perlow, Leslie A., and Thomas J. DeLong. "Anne F. Baird." Harvard Business School Supplement 403-086, November 2002. (Revised October 2003.)
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