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Show Results For
- All HBS Web
(3,081)
- People (5)
- News (571)
- Research (2,074)
- Events (21)
- Multimedia (2)
- Faculty Publications (915)
- 02 Sep 2020
- News
The 1920s and H1B visas
Stuart C. Gilson
Professor Stuart Gilson is the Steven R. Fenster Professor of Business Administration at Harvard Business School, and former chairman of the Finance Unit. His research, teaching, and consulting focuses on the financial, business, and legal strategies that companies... View Details
- 2022
- Article
Data Poisoning Attacks on Off-Policy Evaluation Methods
By: Elita Lobo, Harvineet Singh, Marek Petrik, Cynthia Rudin and Himabindu Lakkaraju
Off-policy Evaluation (OPE) methods are a crucial tool for evaluating policies in high-stakes domains such as healthcare, where exploration is often infeasible, unethical, or expensive. However, the extent to which such methods can be trusted under adversarial threats... View Details
Lobo, Elita, Harvineet Singh, Marek Petrik, Cynthia Rudin, and Himabindu Lakkaraju. "Data Poisoning Attacks on Off-Policy Evaluation Methods." Proceedings of the Conference on Uncertainty in Artificial Intelligence (UAI) 38th (2022): 1264–1274.
- Teaching Interest
Strategic Financial Analysis
By: Suraj Srinivasan
This course focuses on the tools used to create economic value. It presents frameworks for assessing strategy, monitoring performance, forecasting capital utilization, valuing strategic assets, and reviewing restructuring opportunities. Participants learn to... View Details
- 2011
- Working Paper
Divide and Rule or the Rule of the Divided? Evidence from Africa
By: Stelios Michalopoulos and Elias Papaioannou
We investigate jointly the importance of contemporary country-level institutional structures and local ethnic-specific pre-colonial institutions in shaping comparative regional development in Africa. We utilize information on the spatial distribution of African... View Details
Michalopoulos, Stelios, and Elias Papaioannou. "Divide and Rule or the Rule of the Divided? Evidence from Africa." NBER Working Paper Series, No. 17184, June 2011.
E. Scott Mayfield
Scott Mayfield is a Senior Lecturer of Business Administration in the Finance Unit at the Harvard Business School. Prior rejoining the faculty in 2011, Professor Mayfield was an assistant professor and member of the Finance Unit at HBS from 1997 to... View Details
- February 2019 (Revised September 2021)
- Case
The a2 Milk Company
By: Benjamin C. Esty and Daniel Fisher
The a2 Milk Company (a2MC) became the most valuable company listed on the New Zealand stock exchange in 2018 by capitalizing on a biochemical discovery related to the protein composition of cow's milk. Because many people find the A1 protein difficult to digest, and... View Details
Keywords: Judo Economics; Market Entry; Innovation; Barriers To Response; Industry Attractiveness; Advantage Horizon; Sustainability; First-mover Advantage; Scope; Strategy Execution; Strategic Evolution; Biochemistry; Genetics; Branding; Commodity; Milk; Dairy; Infant Formula; Farming; Porter's Five Forces; Competitive Advantage; Corporate Strategy; Value Creation; Competition; Disruption; Innovation and Invention; Five Forces Framework; Market Entry and Exit
Esty, Benjamin C., and Daniel Fisher. "The a2 Milk Company." Harvard Business School Case 719-424, February 2019. (Revised September 2021.)
- 2017
- Working Paper
Rethinking Measurement of Pay Disparity and its Relation to Firm Performance
By: Ethan Rouen
I develop measures of firm-level pay disparity and examine their relation to firm accounting performance. Using comprehensive compensation data for a large sample of firms, I find no statistically significant relation between the ratio of CEO-to-mean employee... View Details
Keywords: Pay Disparity; Pay Ratio; CEO Pay Ratio; Income Inequality; Executive Compensation; Wages; Equality and Inequality; Business Ventures; Performance
Rouen, Ethan. "Rethinking Measurement of Pay Disparity and its Relation to Firm Performance." Harvard Business School Working Paper, No. 18-007, July 2017.
- 2022
- Working Paper
Measuring the Tolerance of the State: Theory and Application to Protest
By: Veli Andirin, Yusuf Neggers, Mehdi Shadmehr and Jesse M. Shapiro
We develop a measure of a regime's tolerance for an action by its citizens. We ground our measure in an economic model and apply it to the setting of political protest. In the model, a regime anticipating a protest can take a costly action to repress it. We define the... View Details
Keywords: Political Protests; Modeling And Analysis; Government and Politics; Conflict and Resolution
Andirin, Veli, Yusuf Neggers, Mehdi Shadmehr, and Jesse M. Shapiro. "Measuring the Tolerance of the State: Theory and Application to Protest." NBER Working Paper Series, No. 30167, June 2022.
- 17 Feb 2011
- News
Business Ready for 'Shared Values,' But Government Lags
- June 2018
- Background Note
Introduction to Life Settlements
By: Alexander Braun, Lauren H. Cohen, Christopher J. Malloy and Jiahua Xu
Life insurance is an asset owned by the majority of American adults (61%). Note that this 61% penetration rate is essentially at parity with home ownership (64%) and higher than that of 401(k) retirement account ownership (53%). Life settlements, or life insurance... View Details
Braun, Alexander, Lauren H. Cohen, Christopher J. Malloy, and Jiahua Xu. "Introduction to Life Settlements." Harvard Business School Background Note 218-127, June 2018.
- October 2023
- Article
Improving Regulatory Effectiveness Through Better Targeting: Evidence from OSHA
By: Matthew S. Johnson, David I. Levine and Michael W. Toffel
We study how a regulator can best target inspections. Our case study is a U.S. Occupational Safety and Health Administration (OSHA) program that randomly allocated some inspections. On average, each inspection averted 2.4 serious injuries (9%) over the next five years.... View Details
Keywords: Safety Regulations; Regulations; Regulatory Enforcement; Machine Learning Models; Safety; Operations; Service Operations; Production; Forecasting and Prediction; Decisions; United States
Johnson, Matthew S., David I. Levine, and Michael W. Toffel. "Improving Regulatory Effectiveness Through Better Targeting: Evidence from OSHA." American Economic Journal: Applied Economics 15, no. 4 (October 2023): 30–67. (Profiled in the Regulatory Review.)
- 2020
- Working Paper
Internal Models, Make Believe Prices, and Bond Market Cornering
By: Ishita Sen and Varun Sharma
Exploiting position-level heterogeneity in regulatory incentives to misreport and novel data on regulators, we document that U.S. life insurers inflate the values of corporate bonds using internal models. We estimate an additional $9-$18 billion decline in regulatory... View Details
Keywords: Life Insurers; Capital Regulation; Internal Models; Corporate Bonds; Regulatory Supervision; Concentrated Ownership; Bonds; Capital; Governing Rules, Regulations, and Reforms; Insurance; Investment Portfolio
Sen, Ishita, and Varun Sharma. "Internal Models, Make Believe Prices, and Bond Market Cornering." Working Paper, June 2020.
- 2020
- Working Paper
Improving Regulatory Effectiveness Through Better Targeting: Evidence from OSHA
By: Matthew S. Johnson, David I. Levine and Michael W. Toffel
We study how a regulator can best target inspections. Our case study is a US Occupational Safety and Health Administration (OSHA) program that randomly allocated some inspections. On average, each inspection averted 2.4 serious injuries (9%) over the next five years.... View Details
Keywords: Government Administration; Working Conditions; Safety; Quality; Production; Analysis; Resource Allocation; Manufacturing Industry; United States
Johnson, Matthew S., David I. Levine, and Michael W. Toffel. "Improving Regulatory Effectiveness Through Better Targeting: Evidence from OSHA." Harvard Business School Working Paper, No. 20-019, August 2019. (Revised February 2020.)
- 2015
- Working Paper
Banks' Risk Exposures
By: Juliane Begenau, Monika Piazzesi and Martin Schneider
This paper studies U.S. banks' exposure to interest rate and credit risk. We exploit the factor structure in interest rates to represent many bank positions in terms of simple factor portfolios. This approach delivers time varying measures of exposure that are... View Details
Begenau, Juliane, Monika Piazzesi, and Martin Schneider. "Banks' Risk Exposures." NBER Working Paper Series, No. 21334, July 2015.
- 04 Apr 2016
- HBS Seminar
Ariel Stern, Harvard Business School
- 2024
- Working Paper
The Wandering Scholars: Understanding the Heterogeneity of University Commercialization
By: Josh Lerner, Henry Manley, Carolyn Stein and Heidi Williams
University-based scientific research has long been argued to be a central source of
commercial innovation and economic growth. Yet at the same time, there have been
long-held concerns that many university-based discoveries never realize their potential
social... View Details
Lerner, Josh, Henry Manley, Carolyn Stein, and Heidi Williams. "The Wandering Scholars: Understanding the Heterogeneity of University Commercialization." Harvard Business School Working Paper, No. 24-043, January 2024.
- 2021
- Working Paper
Stock Investors' Returns Are Exaggerated
By: Jesse M. Fried, Paul Ma and Charles C.Y. Wang
The stock market generates less wealth than it appears. We show that total shareholder return (TSR), the standard measure of stock investor performance, substantially exaggerates returns earned by these investors in aggregate, and thus by most investors. The main... View Details
Keywords: All-shareholder Returns; Capital Flows; Dividend Reinvestment; Equity Premium; Total Shareholder Returns; Stocks; Investment Return; Market Timing
Fried, Jesse M., Paul Ma, and Charles C.Y. Wang. "Stock Investors' Returns Are Exaggerated." Harvard Business School Working Paper, No. 22-036, November 2021.
- January 2021
- Article
'Mobile'izing Agricultural Advice: Technology Adoption, Diffusion and Sustainability
By: Shawn A. Cole and A. Nilesh Fernando
We examine the role of management in agricultural productivity by evaluating a mobile-phone based agricultural advice service provided to farmers in India. Demand for advice is high, and advice changes practices, increasing yields in cumin (28%) and cotton (8.6% for a... View Details
Keywords: Agricultural Extension; Informational Inefficiencies; Technology Adoption; Agribusiness; Information; Mobile Technology; India
Cole, Shawn A., and A. Nilesh Fernando. "'Mobile'izing Agricultural Advice: Technology Adoption, Diffusion and Sustainability." Economic Journal 131, no. 633 (January 2021): 192–219.