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- All HBS Web
(2,187)
- People (1)
- News (437)
- Research (1,502)
- Events (49)
- Multimedia (13)
- Faculty Publications (934)
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- August 2013 (Revised November 2013)
- Case
Gordon Brothers: Collateralizing Corporate Loans by Brands
By: Paul Healy and Maria Loumioti
The case explores the collateralization of intellectual property in a loan agreement between a highly leveraged apparel company and a large US bank. Leveraging intangibles in the credit market is a new practice that has significantly grown over the past few years.... View Details
Healy, Paul, and Maria Loumioti. "Gordon Brothers: Collateralizing Corporate Loans by Brands." Harvard Business School Case 114-016, August 2013. (Revised November 2013.)
- October 2002 (Revised October 2005)
- Case
United Parcel Service's IPO
By: Paul M. Healy, Brett Laschinger and Ajay Shroff
Examines the valuation of United Parcel Service (UPS) at the time of its IPO in mid-1999. Offers students the opportunity to assess UPS's current performance relative to its major competitor, Federal Express (FedEx), and to judge whether that performance is... View Details
Keywords: Initial Public Offering; Valuation; Performance Evaluation; Competition; Shipping Industry; Georgia (state, US)
Healy, Paul M., Brett Laschinger, and Ajay Shroff. "United Parcel Service's IPO." Harvard Business School Case 103-015, October 2002. (Revised October 2005.)
- 2025
- Article
Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments
By: Kosuke Imai and Michael Lingzhi Li
Researchers are increasingly turning to machine learning (ML) algorithms to investigate causal heterogeneity in randomized experiments. Despite their promise, ML algorithms may fail to accurately ascertain heterogeneous treatment effects under practical settings with... View Details
Imai, Kosuke, and Michael Lingzhi Li. "Statistical Inference for Heterogeneous Treatment Effects Discovered by Generic Machine Learning in Randomized Experiments." Journal of Business & Economic Statistics 43, no. 1 (2025): 256–268.
- October 2007
- Article
The Influence of Financial Statement Recognition and Analyst Coverage on the Market's Valuation of R&D Capital
By: Michael D. Kimbrough
Statement of Financial Accounting Standards 141 (SFAS No. 141)'s requirement that an acquirer in a business combination estimate the fair value of the target's separately identifiable assets and liabilities (including research and development capital) provides a rare... View Details
- 03 Nov 2020
- Working Paper Summaries
An Executive Order Worth $100 Billion: The Impact of an Immigration Ban’s Announcement on Fortune 500 Firms’ Valuation
- Article
Exposure to Harmful Workplace Practices Could Account for Inequality in Life Spans Across Different Demographic Groups
By: Joel Goh, Jeffrey Pfeffer and Stefanos A. Zenios
The existence of important socioeconomic disparities in health and mortality is a well-established fact. Many pathways have been adduced to explain inequality in life spans. In this article we examine one factor that has been somewhat neglected: people with different... View Details
Goh, Joel, Jeffrey Pfeffer, and Stefanos A. Zenios. "Exposure to Harmful Workplace Practices Could Account for Inequality in Life Spans Across Different Demographic Groups." Health Affairs 34, no. 10 (October 2015): 1761–1768.
- June 2009
- Case
Midland Energy Resources, Inc.: Cost of Capital
By: Timothy A. Luehrman and Joel L. Heilprin
The senior vice president of project finance for a global oil and gas company must determine the weighted average cost of capital for the company as a whole and each of its divisions as part of the annual capital budgeting process. The case uses comparable companies to... View Details
Keywords: Risk Assessment; Risk and Uncertainty; Risk Management; Cost of Capital; Cash Flow; Capital Structure; Valuation; Capital Budgeting; Energy Industry
Luehrman, Timothy A., and Joel L. Heilprin. "Midland Energy Resources, Inc.: Cost of Capital." Harvard Business School Brief Case 094-129, June 2009.
- July 1988 (Revised May 1989)
- Background Note
On the Economics of a Parking Garage
By: David E. Bell
Introduces notions of cash flow, net present value, and internal rate of return by estimating the profitability of a parking garage. View Details
Bell, David E. "On the Economics of a Parking Garage." Harvard Business School Background Note 189-004, July 1988. (Revised May 1989.)
- 2023
- Working Paper
Polarizing Corporations: Does Talent Flow to "Good" Firms?
By: Emanuele Colonnelli, Tim McQuade, Gabriel Ramos, Thomas Rauter and Olivia Xiong
We conduct a field experiment in partnership with the largest job platform in Brazil to study how environmental, social, and governance (ESG) practices
of firms affect talent allocation. We find both an average job-seeker’s preference for ESG and a large degree of... View Details
Keywords: Corporate Social Responsibility and Impact; Job Search; Talent and Talent Management; Wages; Attitudes
Colonnelli, Emanuele, Tim McQuade, Gabriel Ramos, Thomas Rauter, and Olivia Xiong. Polarizing Corporations: Does Talent Flow to "Good" Firms? Working Paper, November 2023.
- 2023
- Working Paper
Complexity and Time
By: Benjamin Enke, Thomas Graeber and Ryan Oprea
We provide experimental evidence that core intertemporal choice anomalies -- including extreme short-run impatience, structural estimates of present bias, hyperbolicity and transitivity violations -- are driven by complexity rather than time or risk preferences. First,... View Details
Enke, Benjamin, Thomas Graeber, and Ryan Oprea. "Complexity and Time." NBER Working Paper Series, No. 31047, March 2023.
- December 1997
- Case
Fixed Income Valuation
By: W. Carl Kester
A collection of problems that introduces students to the use of discounted cash flow analysis in the valuation of fixed income securities. Students are required to estimate bond prices and yields to maturity, among other items. View Details
Kester, W. Carl. "Fixed Income Valuation." Harvard Business School Case 298-080, December 1997.
- 2025
- Working Paper
Luck of the Draw: The Causal Effect of Physicians on Birth Outcomes
By: Christian Posso, Jorge Tamayo, Arlen Guarin and Estefania Saravia
We estimate the effect on birth outcomes of a mother’s being treated by more-skilled versus less-skilled physicians by exploiting a Colombian government program that randomly assigned newly graduated physicians to local health centers (LHCs). We estimate the impact on... View Details
Keywords: Physicians' Health Skills; Health Birth Outcomes; Birthing Outcomes; Experimental Evidence; Health Care and Treatment; Competency and Skills; Outcome or Result; Health Industry; Colombia
Posso, Christian, Jorge Tamayo, Arlen Guarin, and Estefania Saravia. "Luck of the Draw: The Causal Effect of Physicians on Birth Outcomes." Harvard Business School Working Paper, No. 22-015, February 2021. (Revised January 2025. R&R American Economic Journal.)
- August 2022
- Article
Contract Duration and the Costs of Market Transactions
By: Alexander MacKay
The optimal duration of a supply contract balances the costs of reselecting a supplier against the costs of being matched to an inefficient supplier when the contract lasts too long. I develop a structural model of contract duration that captures this tradeoff and... View Details
Keywords: Supply Contracts; Intermediate Goods; Switching Costs; Vertical Relationships; Transaction Costs; Contract Duration; Identification; Supply Chain; Cost; Contracts; Auctions; Mathematical Methods
MacKay, Alexander. "Contract Duration and the Costs of Market Transactions." American Economic Journal: Microeconomics 14, no. 3 (August 2022): 164–212.
- 2012
- Working Paper
Average Marginal Income Tax Rates in New Zealand, 1907-2009
By: Debasis Bandyopadhyay, Robert J. Barro, Jeremy Couchman, Norman Gemmell, Gordon Y Liao and Fiona McAlister
Estimates of marginal tax rates (MTRs) faced by individual economic agents, and for various aggregates of taxpayers, are important for economists testing behavioural responses to changes in those tax rates. This paper reports estimates of a number of personal marginal... View Details
Bandyopadhyay, Debasis, Robert J. Barro, Jeremy Couchman, Norman Gemmell, Gordon Y Liao, and Fiona McAlister. "Average Marginal Income Tax Rates in New Zealand, 1907-2009." Working Paper, July 2012.
- 31 May 2022
- Cold Call Podcast
Corruption: New Insights for Fighting an Age-Old Business Problem
Keywords: Re: Tarun Khanna & Geoffrey G. Jones
- 1980
- Working Paper
Taxation and the Ex-dividend Day Behavior of Common Stock Prices
By: Jerry R. Green
The behavior of stock prices around ex-dividend days has been suggested as evidence for tax-induced clientele effects and as a means to estimate the average effective tax rate faced by investors. In this paper these possibilities are examined theoretically and... View Details
Green, Jerry R. "Taxation and the Ex-dividend Day Behavior of Common Stock Prices." NBER Working Paper Series, No. 496, July 1980.
- 07 Jul 2020
- Working Paper Summaries
Predictable Financial Crises
- January 2021 (Revised August 2021)
- Case
ByteDance: TikTok and the Trials of Going Viral
By: William C. Kirby and John P. McHugh
In 2020, TikTok became the most valuable start-up ever. The short-form, video-sharing social media platform emerged as the crown jewel of the Chinese technology firm ByteDance, realizing 850 million monthly users and an estimated worth of $180 billion. However, a... View Details
Keywords: China; Technology; Startup; Start-up; International Strategy; Global Strategy And Leadership; Innovation; Political Risk; Regulations; Trump; Foreign Policy; Foreign Investment; Chinese Internet Market; Global Strategy; Crisis Management; Risk and Uncertainty; Entrepreneurship; Globalized Economies and Regions; Government Legislation; Innovation and Management; Governing Rules, Regulations, and Reforms; Internet and the Web; Social Media; Technology Industry; China; United States
Kirby, William C., and John P. McHugh. "ByteDance: TikTok and the Trials of Going Viral." Harvard Business School Case 321-110, January 2021. (Revised August 2021.)
- August 2024
- Article
How Do Copayment Coupons Affect Branded Drug Prices and Quantities Purchased?
By: Leemore S. Dafny, Kate Ho and Edward Kong
Drug copayment coupons to reduce patient cost-sharing have become nearly ubiquitous for high-priced brand-name prescription drugs. Medicare bans such coupons on the grounds that they are kickbacks that induce utilization, but they are commonly used by... View Details
Keywords: Prescription Drugs; Coupons; Impact; Health Care and Treatment; Markets; Price; Spending; Pharmaceutical Industry; United States
Dafny, Leemore S., Kate Ho, and Edward Kong. "How Do Copayment Coupons Affect Branded Drug Prices and Quantities Purchased?" American Economic Journal: Economic Policy 16, no. 3 (August 2024): 314–346.
- February 2022
- Article
Borrowing to Save? The Impact of Automatic Enrollment on Debt
By: John Beshears, James J. Choi, David Laibson, Brigitte C. Madrian and William L. Skimmyhorn
Does automatic enrollment into a retirement plan increase financial distress due to increased borrowing outside the plan? We study a natural experiment created when the U.S. Army began automatically enrolling newly hired civilian employees into the Thrift Savings Plan.... View Details
Keywords: Retirement Savings; Automatic Enrollment; Choice Architecture; Nudge; Financial Distress; Retirement; Saving; Borrowing and Debt; Behavior
Beshears, John, James J. Choi, David Laibson, Brigitte C. Madrian, and William L. Skimmyhorn. "Borrowing to Save? The Impact of Automatic Enrollment on Debt." Journal of Finance 77, no. 1 (February 2022): 403–447.