Publications
Publications
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- All HBS Web
(2,129)
- Faculty Publications (556)
- 2025
- Working Paper
How Do Households Suppress the Price of Tail Risk?
By: Laurent Calvet, Claire Célérier, Gordon Liao and Boris Vallée
This paper investigates the effects of the issuance of retail products with non-linear payoffs on option prices. For a given underlying asset, when the outstanding volume of products embedding a short-put position increases, implied volatility at the corresponding... View Details
- 2021
- Working Paper
The Changing Role of Business in Society
Business interaction with the U.S. government, historically based on securing industry or company special interests at the expense of the public good, has enabled and furthered government dysfunction. Gridlock within the American political system has precluded the... View Details
Keywords: Politics; Shared Value; Social Progress Index; Competitiveness; Walmart; BlackRock; ESG (Environmental, Social, Governance) Performance; ESG; Transparency; Campaign Contributions; Campaign Finance; Lobbying; Revolving Door; Political Ideology; Political Parties; Political Partisanship; Government And Business; Government Innovation; Elections; Democracy; Capitalism; Stakeholder Capitalism; Shareholder Engagement; Competition; Strategy; Government and Politics; Society; Social Issues; Human Needs; Wealth and Poverty; Business and Community Relations; Business and Government Relations; Corporate Accountability; Financial Services Industry; Banking Industry; United States
- 9 Jul 2021
- Interview
Matthew Barzun and Amy Edmondson
By: Amy C. Edmondson and Matthew Barzun
Writer Matthew Barzun speaks with Harvard Professor and author Amy Edmondson about Barzun's book, "The Power of Giving Away Power: How the Best Leaders Learn to Let Go". Matthew Barzun has served as U.S. ambassador to the United Kingdom and Sweden. He served as... View Details
- June 2021 (Revised November 2021)
- Case
Equity Bank: Charting the Future
By: Lauren Cohen, Michael Chitavi and Spencer C. N. Hagist
After climbing the ranks among Kenya's financial institutions from 66th to 1st, and toppling a quarter of the market share held by mobile money giant Safaricom, CEO James Mwangi must now guide Equity Bank into its next stage of development beyond "Equity 3.0." Should... View Details
- June 2021
- Article
Short-Termism, Shareholder Payouts, and Investment in the EU
By: Jesse M. Fried and Charles C.Y. Wang
Investor-driven "short-termism" is said to harm EU public firms' ability to invest for the long term, prompting calls for the EU to better insulate managers from shareholder pressure. But the evidence offered—rising levels of repurchases and dividends—is incomplete and... View Details
- May 2021
- Case
Inclusive Innovation at Mass General Brigham
By: Katherine Baldiga Coffman and Olivia Hull
Massachusetts General Brigham (MGB) Chief Innovation Officer Christopher Coburn had overseen a period of exciting transformation and growth in healthcare innovation at MGB. In November 2019, the health system was the largest recipient of National Institutes of Health... View Details
Keywords: Inclusion; Innovation; Invention; Gender; Business Startups; Investment Funds; Private Equity; Health Care and Treatment; Innovation Strategy; Technological Innovation; Intellectual Property; Copyright; Patents; Research; Research and Development; Diversification; Technology; Health Industry; Massachusetts; Boston
- April 2021 (Revised December 2023)
- Case
The Mahindra Group: Leading with Purpose
By: Ranjay Gulati and Rachna Tahilyani
India headquartered Mahindra Group is a multibillion-dollar federation of companies operating across the globe. It is ahead of its time in articulating its purpose and mapping its values, something it had first done at inception and then refreshed yet again as ‘Rise’... View Details
Keywords: Mission and Purpose; Organizational Culture; Change Management; Communication Strategy; Family Ownership; Corporate Social Responsibility and Impact; Revenue; Auto Industry; Financial Services Industry; Manufacturing Industry; Technology Industry; Asia; India; Mumbai; South Korea; Italy; United States
- Article
Ten Year Sunset Rule for Healthcare Regulation Is a Nonstarter and Discouragement to Post-COVID-19 Investment
By: Regina E. Herzlinger and Eugene Schneller
U.S. healthcare delivery has not benefitted from the same productivity growth as many other service industries, such as bricks and mortar retailing, a loss that has gravely diminished cost control and access. Regulatory capture, which creates barriers to venture... View Details
- Article
A Feasibility Study Using Time-driven Activity-based Costing as a Management Tool for Provider Cost Estimation: Lessons from the National TB Control Program in Zimbabwe in 2018
By: J. Chirenda, B. Nhlema Simwaka, C. Sandy, K. Bodnar, S. Corbin, P. Desai, T. Mapako, S. Shamu, C. Timire, E. Antonio, A. Makone, A. Birikorang, T. Mapuranga, M. Ngwenya, T. Masunda, M. Dube, E. Wandwalo, L. Morrison and R. S. Kaplan
Background: This study used process maps and time-driven activity-based costing to document TB service delivery processes. The analysis identified the resources required to sustain TB services in Zimbabwe, as well as several opportunities for more effective and... View Details
- 2023
- Working Paper
Judging Foreign Startups
By: Nataliya Langburd Wright, Rembrand Koning and Tarun Khanna
Can accelerators pick the most promising startup ideas no matter their provenance? Using unique data from a global accelerator where judges are randomly assigned to evaluate startups headquartered across the globe, we show that judges are less likely to recommend... View Details
- March 2021
- Teaching Plan
The Black New Venture Competition
By: Karen G. Mills, Jeffrey J. Bussgang, Martin A. Sinozich and Gabriella Elanbeck
Black entrepreneurs encounter many unique obstacles when raising capital to start and grow a business, some stemming from deep systemic discrimination. During their second year at Harvard Business School (HBS), MBA students Kimberly Foster and Tyler Simpson decided to... View Details
Keywords: Analytics; Startup; Start-up; Startup Financing; Financing; Startups; Start-ups; Business And Community; Business And Society; Business Growth; Discrimination; Women; Women-owned Businesses; African Americans; African-american Entrepreneurs; African-american Investors; African-American Protagonist; African-American Women; Early Stage Funding; Early Stage; Innovation ＆ Entrepreneurship; Innovation Competitions; Entrepreneurial Financing; Business Plan; Business Startups; Diversity; Gender; Race; Entrepreneurship; Venture Capital; Small Business; Leadership; Information Technology; Competition
- February 2021
- Case
New England Baptist Hospital: Getting Paid for Value
By: Robert S. Kaplan, Mary Witkowski, Toby E. Emanuel and Syed S. Shehab
New England Baptist Hospital (NEBH), a national leader in adult orthopedic care, has the lowest rate of complications and 30-day readmissions in New England, but gets paid 30% less for its surgeries than nearby institutions. NEBH introduces, with several large... View Details
- February 2021
- Case
Lidya: Bringing Nigerian FinTech Innovation to Global Small and Medium Enterprises
By: Lauren Cohen and Spencer C.N. Hagist
Lidya CEO Tunde Kehinde must size up options for the expansion of his novel lending practices that drastically reduce the credit cycle in his developing Nigeria, and determine if expansion into Eastern Europe will prove successful or disastrous. View Details
- February 2021
- Article
Do Household Wealth Shocks Affect Productivity? Evidence from Innovative Workers During the Great Recession
By: S. Bernstein, T. McQuade and R. Townsend
We investigate how the deterioration of household balance sheets affects worker productivity, and, in turn, economic downturns. Specifically, we compare the output of innovative workers who experienced differential declines in housing wealth during the financial crisis... View Details
- January 2021
- Supplement
Bespoken Spirits: Disrupting Distilling
By: Benjamin C. Esty and Daniel Fisher
On October 7, 2020, Bespoken Spirits publicly announced it had received $2.6 million of seed funding for its “sustainable maturation process,” a process that could produce award-winning whiskeys in just days rather than years using a novel technology and data science. ... View Details
Keywords: Business Ventures; Business Strategy; Competitive Advantage; Disruption; Entrepreneurship; Environmental Sustainability; Cash Flow; Disruptive Innovation; Innovation Strategy; Brands and Branding; Business Model; Consumer Products Industry; Food and Beverage Industry; Service Industry; United States; California
- January 2021
- Case
Bespoken Spirits: Disrupting Distilling
By: Benjamin C. Esty and Daniel Fisher
On October 7, 2020, Bespoken Spirits publicly announced it had received $2.6 million of seed funding for its “sustainable maturation process,” a process that could produce award-winning whiskeys in just days rather than years using a novel technology and data science. ... View Details
Keywords: Business Ventures; Business Strategy; Competitive Advantage; Disruption; Entrepreneurship; Environmental Sustainability; Cash Flow; Disruptive Innovation; Innovation Strategy; Brands and Branding; Business Model; Consumer Products Industry; Food and Beverage Industry; Service Industry; United States; California
- 2021
- Working Paper
Connecting Expected Stock Returns to Accounting Valuation Multiples: A Primer
By: Akash Chattopadhyay, Matthew R. Lyle and Charles C.Y. Wang
We outline a framework in which accounting “valuation anchors" could be connected to expected stock returns. Under two general conditions, expected log returns is a log-linear function of a valuation (market value-to-accounting) multiple and the expected growth in the... View Details
Keywords: Expected Returns; Present Value; Investment Return; Accounting; Valuation; Information; Framework
- January 2021 (Revised October 2021)
- Case
Ken Talbot—Cautionary Tale in Estate Planning
By: Christina R. Wing and Faith Lyons
In 2010, Ken Talbot, a self-made Australian billionaire, was traveling throughout Africa to bring his innovative coal technology to the continent when he perished in a plane crash. His will was originally created years prior when his estate worth was estimated to be AU... View Details
- 2020
- Working Paper
Accounting for Product Impact in the Consumer Finance Industry
By: George Serafeim and Katie Trinh
We apply the product impact measurement framework of the Impact-Weighted Accounts Initiative (IWAI) in two competitor credit card providers within the consumer finance industry. We design a monetization methodology that allows us to calculate monetary impact estimates... View Details
Keywords: Product Innovation; Impact; Impact Investing; Impact Measurement; ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Corporate Responsibility; Corporate Social Responsibility; Social Impact; Consumer Finance; Financial Services; Financial Inclusion; Product; Product Design; Product Positioning; Society; Corporate Social Responsibility and Impact; Personal Finance; Credit Cards; Financial Services Industry
- October 2020 (Revised November 2020)
- Case
Digging for Gold: Paulson & Co.'s Activism in the Gold Sector
By: Suraj Srinivasan and Jonah S. Goldberg
The case describes the efforts of hedge fund Paulson & Co to influence corporate governance and improve performance in the gold industry. In an innovative move, the hedge fund led the creation of the Shareholder Gold Council, a consortium of large investors in gold... View Details