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Show Results For
- All HBS Web
(1,140)
- People (1)
- News (179)
- Research (622)
- Events (18)
- Multimedia (5)
- Faculty Publications (379)
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- 2020
- Working Paper
Do Lenders Still Discriminate? A Robust Approach for Assessing Differences in Menus
By: David Hao Zhang and Paul Willen
We use a new methodology to assess mortgage pricing discrimination by race. We make four main contributions. First, we show that existing estimates of mortgage pricing differences by race can be confounded by a "menu problem," which is the problem associated with... View Details
Keywords: Mortgages; Financing and Loans; Prejudice and Bias; Race; Measurement and Metrics; Banking Industry; United States
Zhang, David Hao, and Paul Willen. "Do Lenders Still Discriminate? A Robust Approach for Assessing Differences in Menus." Working Paper, September 2020.
- July 1987
- Case
Altoona Corp.: Computer Products Division
By: Roger E. Bohn and Robert H. Hayes
A relatively small manufacturer of computer memory disks has achieved a major market position through the use of its statistical quality control (SQC) program. It is now expanding the production of a new line of disks and is encountering problems getting the process... View Details
Keywords: Factories, Labs, and Plants; Volatility; Performance Consistency; Performance Improvement; Performance Productivity; Quality; Mathematical Methods; Hardware; Manufacturing Industry
Bohn, Roger E., and Robert H. Hayes. "Altoona Corp.: Computer Products Division." Harvard Business School Case 688-010, July 1987.
- Article
Memory and Representativeness
By: Pedro Bordalo, Katherine Baldiga Coffman, Nicola Gennaioli, Frederik Schwerter and Andrei Shleifer
We explore the idea that judgment by representativeness reflects the workings of episodic memory, especially interference. In a new laboratory experiment on cued recall, participants are shown two groups of images with different distributions of colors. We find that i)... View Details
Bordalo, Pedro, Katherine Baldiga Coffman, Nicola Gennaioli, Frederik Schwerter, and Andrei Shleifer. "Memory and Representativeness." Psychological Review 128, no. 1 (January 2021): 71–85.
- Research Summary
Efficient Consumer Response (ECR)
Seifert is conducting ongoing research on ECR success factor study. Identifying the relevant success factors for ECR-Implementation. Research includes analysis of supply chain mangement and category management implementiation. Statistical data is based on extensive... View Details
- March 2022 (Revised January 2025)
- Technical Note
Prediction & Machine Learning
By: Iavor I. Bojinov, Michael Parzen and Paul Hamilton
This note provides an introduction to machine learning for an introductory data science course. The note begins with a description of supervised, unsupervised, and reinforcement learning. Then, the note provides a brief explanation of the difference between traditional... View Details
Keywords: Machine Learning; Data Science; Learning; Analytics and Data Science; Performance Evaluation; AI and Machine Learning
Bojinov, Iavor I., Michael Parzen, and Paul Hamilton. "Prediction & Machine Learning." Harvard Business School Technical Note 622-101, March 2022. (Revised January 2025.)
- January 2019
- Article
Increasing the Electoral Participation of Immigrants: Experimental Evidence from France
By: Vincent Pons and Guillaume Liegey
Improving the political participation of immigrants could advance their interests and foster their integration into receiving countries. In this study, 23,800 citizens were randomly assigned to receive visits from political activists during the lead-up to the 2010... View Details
Pons, Vincent, and Guillaume Liegey. "Increasing the Electoral Participation of Immigrants: Experimental Evidence from France." Economic Journal 129, no. 617 (January 2019): 481–508. (Also Harvard Business School Working Paper, No. 16-094, February 2016.)
- Research Summary
Airline Schedule Disruptions
Increasing congestion and frequent schedule disruptions throughout the National Air Transportation System, both at airports and en route, have led to significant flight and passenger delays. Professor Fearing's primary research focus is on measuring and reducing... View Details
- 05 Jul 2006
- Working Paper Summaries
Bringing History into International Business
- November 2021
- Article
Gaussian Process Subset Scanning for Anomalous Pattern Detection in Non-iid Data
By: William Herlands, Edward McFowland III, Andrew Gordon Wilson and Daniel B. Neill
Identifying anomalous patterns in real-world data is essential for understanding where, when, and how systems deviate from their expected dynamics. Yet methods that separately consider the anomalousness of each individual data point have low detection power for subtle,... View Details
Herlands, William, Edward McFowland III, Andrew Gordon Wilson, and Daniel B. Neill. "Gaussian Process Subset Scanning for Anomalous Pattern Detection in Non-iid Data." Proceedings of Machine Learning Research (PMLR) 84 (2018): 425–434. (Also presented at the 21st International Conference on Artificial Intelligence and Statistics (AISTATS), 2018.)
- 11 Mar 2008
- Working Paper Summaries
Finding Missing Markets (and a disturbing epilogue): Evidence from an Export Crop Adoption and Marketing Intervention in Kenya
- 2019
- Article
An Empirical Study of Rich Subgroup Fairness for Machine Learning
By: Michael J Kearns, Seth Neel, Aaron Leon Roth and Zhiwei Steven Wu
Kearns et al. [2018] recently proposed a notion of rich subgroup fairness intended to bridge the gap between statistical and individual notions of fairness. Rich subgroup fairness picks a statistical fairness constraint (say, equalizing false positive rates across... View Details
Kearns, Michael J., Seth Neel, Aaron Leon Roth, and Zhiwei Steven Wu. "An Empirical Study of Rich Subgroup Fairness for Machine Learning." Proceedings of the Conference on Fairness, Accountability, and Transparency (2019): 100–109.
- June 2010 (Revised September 2011)
- Background Note
An Overview of Project Finance and Infrastructure Finance--2009 Update
By: Benjamin C. Esty and Aldo Sesia
Provides an introduction to the fields of project finance and infrastructure finance and gives a statistical overview of project-financed investments over the years from 2005 to 2009. Examples of project-financed investments include the $1.4 billion Mozal aluminum... View Details
Esty, Benjamin C., and Aldo Sesia. "An Overview of Project Finance and Infrastructure Finance--2009 Update." Harvard Business School Background Note 210-061, June 2010. (Revised September 2011.)
- January 2020
- Article
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 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 compensation and... View Details
Keywords: Pay Disparity; Pay Ratio; CEO Pay Ratio; Income Inequality; Executive Compensation; Employees; Wages; Equality and Inequality; Business Ventures; Performance
Rouen, Ethan. "Rethinking Measurement of Pay Disparity and Its Relation to Firm Performance." Accounting Review 95, no. 1 (January 2020): 343–378.
- September 2016
- Case
Hotel Vertu: Analyzing the Opportunity in the Boutique Hotel Industry
By: Howard H. Stevenson and Michael J. Roberts DBA
Two soon-to-be MBA graduates are considering a business opportunity in the boutique hotel industry. Having found a seemingly attractive property in Savannah, Georgia, Yvonne D'Arcy and Elisabeth Whiting face questions about career issues, planning, financing, and the... View Details
Stevenson, Howard H., and Michael J. Roberts DBA. "Hotel Vertu: Analyzing the Opportunity in the Boutique Hotel Industry." Harvard Business School Brief Case 917-501, September 2016.
- Research Summary
Competitive Dynamics of the Textile-Apparel-Retail Channel
Janice H. Hammond established in 1991 (with Frederick H. Abernathy and John Dunlop of Harvard University and David Weil of Boston University) the Harvard Center for Textile and Apparel Research. Funding provided by the Alfred P. Sloan Foundation has supported the... View Details
- 2020
- Working Paper
An Executive Order Worth $100 Billion: The Impact of an Immigration Ban's Announcement on Fortune 500 Firms' Valuation
By: Dany Bahar, Prithwiraj Choudhury and Britta Glennon
On June 22, 2020, President Trump issued an Executive Order (EO) that suspended new work visas, barring nearly 200,000 foreign workers and their dependents from entering the United States and preventing American companies from hiring skilled immigrants using H-1B or L1... View Details
Keywords: Visa; Foreign Workers; Fortune 500; Immigration; Policy; System Shocks; Business Ventures; Valuation
Bahar, Dany, Prithwiraj Choudhury, and Britta Glennon. "An Executive Order Worth $100 Billion: The Impact of an Immigration Ban's Announcement on Fortune 500 Firms' Valuation." Harvard Business School Working Paper, No. 21-055, October 2020.
- July 2017
- Article
Inflation Expectations, Learning, and Supermarket Prices: Evidence from Survey Experiments
By: Alberto Cavallo, Guillermo Cruces and Ricardo Perez-Truglia
Information frictions play a central role in the formation of household inflation expectations, but there is no consensus about their origins. We address this question with novel evidence from survey experiments. We document two main findings. First, individuals in... View Details
Keywords: Inflation Expectations; Survey Experiment; Rational Inattention; Supermarkets; Macroeconomics; Household; Inflation and Deflation; Policy
Cavallo, Alberto, Guillermo Cruces, and Ricardo Perez-Truglia. "Inflation Expectations, Learning, and Supermarket Prices: Evidence from Survey Experiments." American Economic Journal: Macroeconomics 9, no. 3 (July 2017): 1–35.
- February 2018
- Article
Structural GARCH: The Volatility-Leverage Connection
By: Robert F. Engle and Emil N. Siriwardane
During the financial crisis, financial firm leverage and volatility both rose dramatically. Consequently, institutions are being asked to reduce leverage in order to reduce risk, though the effectiveness depends upon the role of capital structure in volatility. To... View Details
Keywords: Leverage; Credit Risk; Crisis Management; Equity; Volatility; Credit; Risk Management; Financial Crisis
Engle, Robert F., and Emil N. Siriwardane. "Structural GARCH: The Volatility-Leverage Connection." Review of Financial Studies 31, no. 2 (February 2018): 449–492.
- Teaching Interest
Applied Business Analytics
Course Overview:
Business Analytics has become a core function in many firms today and is driving innovation in the form of new business and operating models. Data-driven decision-making requires understanding of statistics, computer... View Details
- January 2018
- Technical Note
The Scope of Business at the Base of the Pyramid: Middle and Lower Income Countries
By: V. Kasturi Rangan and Tricia Gregg
Using World Bank data, the note defines the Base of the Pyramid population as the 4.76 billion people living on less than $10/day. It briefly reviews the perspectives of key business articles that address this market, notably C.K. Prahalad’s work on Bottom of the... View Details
Rangan, V. Kasturi, and Tricia Gregg. "The Scope of Business at the Base of the Pyramid: Middle and Lower Income Countries." Harvard Business School Technical Note 518-032, January 2018.