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Show Results For
- All HBS Web
(1,904)
- People (2)
- News (268)
- Research (1,148)
- Events (23)
- Multimedia (9)
- Faculty Publications (722)
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- April 2014
- Article
Awards Unbundled: Evidence from a Natural Field Experiment
By: Nava Ashraf, Oriana Bandiera and Scott S. Lee
Organizations often use non-monetary awards to incentivize performance. Awards may affect behavior through several mechanisms: by conferring employer recognition, by enhancing social visibility, and by facilitating social comparison. In a nationwide health worker... View Details
Keywords: Social Comparison; Awards; Optimal Expectactions; Zambia; Status and Position; Performance Expectations; Motivation and Incentives; Health Care and Treatment; Health Industry; Zambia
Ashraf, Nava, Oriana Bandiera, and Scott S. Lee. "Awards Unbundled: Evidence from a Natural Field Experiment." Journal of Economic Behavior & Organization 100 (April 2014): 44–63.
- 1989
- Other Unpublished Work
Optimal Portfolio Rules in Continuous Time When the Nonnegativity Constraint on Consumption is Binding
By: Robert C. Merton
Merton, Robert C. "Optimal Portfolio Rules in Continuous Time When the Nonnegativity Constraint on Consumption is Binding." December 1989. (In Chapter 6 of Continuous-Time Finance.)
- Article
The Relationship Between Workplace Stressors and Mortality and Health Costs in the United States
By: Joel Goh, Jeffrey Pfeffer and Stefanos A. Zenios
Even though epidemiological evidence links specific workplace stressors to health outcomes, the aggregate contribution of these factors to overall mortality and health spending in the United States is not known. In this paper, we build a model to estimate the excess... View Details
Goh, Joel, Jeffrey Pfeffer, and Stefanos A. Zenios. "The Relationship Between Workplace Stressors and Mortality and Health Costs in the United States." Management Science 62, no. 2 (February 2016): 608–628.
- September 2020 (Revised March 2022)
- Case
JOANN: Joannalytics Inventory Allocation Tool
By: Kris Ferreira and Srikanth Jagabathula
Michael Joyce, Vice President of Inventory Management at JOANN, championed an effort to develop and implement an inventory allocation analytics tool that used advanced analytics to predict in-season demand of seasonal items for each of JOANN’s nearly 900 stores and... View Details
Keywords: Analytics; Machine Learning; Optimization; Inventory Management; Mathematical Methods; Decision Making; Operations; Supply Chain Management; Resource Allocation; Distribution; Technology Adoption; Applications and Software; Change Management; Fashion Industry; Consumer Products Industry; Retail Industry; United States; Ohio
Ferreira, Kris, and Srikanth Jagabathula. "JOANN: Joannalytics Inventory Allocation Tool." Harvard Business School Case 621-055, September 2020. (Revised March 2022.)
- March 2015 (Revised March 2023)
- Case
Immigration Policy in Germany (A)
By: Matthew Weinzierl, Katrina Flanagan and Alastair Su
Germany's Chancellor Angela Merkel faced economic and moral pressure to encourage greater immigration from struggling European, and especially Eurozone, countries after the economic downturn that began in 2008. In fact, it was possible that both the Euro currency union... View Details
Keywords: Citizenship; Optimal Currency Unions; Globalized Economies and Regions; Immigration; Policy; Germany; European Union
Weinzierl, Matthew, Katrina Flanagan, and Alastair Su. "Immigration Policy in Germany (A)." Harvard Business School Case 715-029, March 2015. (Revised March 2023.)
- Article
Popular Acceptance of Inequality Due to Innate Brute Luck and Support for Classical Benefit-based Taxation
U.S. survey respondents' views on distributive justice differ in two specific, related ways from what is conventionally assumed in modern optimal tax research. When expressing their preferences over allocations in stylized, hypothetical scenarios meant to isolate key... View Details
Keywords: Optimal Taxation; Welfarism; Luck; Benefit-based Taxation; Taxation; Equality and Inequality; Attitudes
Weinzierl, Matthew C. "Popular Acceptance of Inequality Due to Innate Brute Luck and Support for Classical Benefit-based Taxation." Journal of Public Economics 155 (November 2017): 54–63. (Also Harvard Business School Working Paper, No. 16-104, March 2016; revised July 2016, and NBER Working Paper Series, No. 22462, July 2016. See Notes on Fortune article.)
- May 2020
- Article
Inventory Auditing and Replenishment Using Point-of-Sales Data
By: Achal Bassamboo, Antonio Moreno and Ioannis Stamatopoulos
Spoilage, expiration, damage due to employee/customer handling, employee theft, and customer shoplifting usually are not reflected in inventory records. As a result, records often report phantom inventory, i.e., units of good not available for sale. We derive an... View Details
Keywords: Shelf Availability; Inventory Record Inaccuracy; Optimal Replenishment; Retail Analytics; Performance Effectiveness; Analysis; Mathematical Methods
Bassamboo, Achal, Antonio Moreno, and Ioannis Stamatopoulos. "Inventory Auditing and Replenishment Using Point-of-Sales Data." Production and Operations Management 29, no. 5 (May 2020): 1219–1231.
- March 2021
- Article
Assortment Rotation and the Value of Concealment
By: Kris J. Ferreira and Joel Goh
Assortment rotation—the retailing practice of changing the assortment of products offered to customers—has recently been used as a competitive advantage for both brick-and-mortar and online retailers. We focus on product categories where consumers may purchase multiple... View Details
Keywords: Assortment Optimization; Retailing; Imperfect Information; Sales; Strategy; Consumer Behavior
Ferreira, Kris J., and Joel Goh. "Assortment Rotation and the Value of Concealment." Management Science 67, no. 3 (March 2021): 1489–1507.
- 2019
- Article
Time-Driven Activity-Based Cost Analysis for Outpatient Anticoagulation Therapy: Direct Costs in a Primary Care Setting with Optimal Performance
By: Robert S. Kaplan, Rohit A. Bobade, Richard A. Helmers, Thomas M. Jaeger, Laura J. Odell and Derek A. Haas
Objectives: To determine how overall cost of anticoagulation therapy for warfarin compares with that of Novel Oral Anticoagulants (NOACs). Also, to demonstrate a scientific, comprehensive, and an analytical approach to estimate direct costs involved in monitoring and... View Details
Keywords: Time-Driven Activity-Based Costing; Activity Based Costing and Management; Health Care and Treatment; Analysis
Kaplan, Robert S., Rohit A. Bobade, Richard A. Helmers, Thomas M. Jaeger, Laura J. Odell, and Derek A. Haas. "Time-Driven Activity-Based Cost Analysis for Outpatient Anticoagulation Therapy: Direct Costs in a Primary Care Setting with Optimal Performance." Journal of Medical Economics 22, no. 5 (2019): 471–477.
- June 2024 (Revised August 2024)
- Case
Hospital for Special Surgery: Returning to a New Normal? (A)
By: Robert S. Huckman, Michael Lingzhi Li and Camille Gregory
Early on the morning of April 27, 2020, Justin Oppenheimer stood outside the entrance to the lobby of the Hospital for Special Surgery (HSS) Pavilion Building with mixed emotions. On one hand, Oppenheimer, HSS’ Enterprise Chief Operating Officer and Chief Strategy... View Details
Keywords: Operations Management; Scheduling; Optimization; COVID-19; Health Care and Treatment; Operations; Customer Focus and Relationships; Disruption; Health Industry; United States
Huckman, Robert S., Michael Lingzhi Li, and Camille Gregory. "Hospital for Special Surgery: Returning to a New Normal? (A)." Harvard Business School Case 624-092, June 2024. (Revised August 2024.)
- March 2022
- Article
Learning to Rank an Assortment of Products
By: Kris Ferreira, Sunanda Parthasarathy and Shreyas Sekar
We consider the product ranking challenge that online retailers face when their customers typically behave as “window shoppers”: they form an impression of the assortment after browsing products ranked in the initial positions and then decide whether to continue... View Details
Keywords: Online Learning; Product Ranking; Assortment Optimization; Learning; Internet and the Web; Product Marketing; Consumer Behavior; E-commerce
Ferreira, Kris, Sunanda Parthasarathy, and Shreyas Sekar. "Learning to Rank an Assortment of Products." Management Science 68, no. 3 (March 2022): 1828–1848.
- February 2014 (Revised August 2015)
- Case
The Estate Tax Debate
By: Matthew Weinzierl, Katrina Flanagan and Valerie Galinskaya
Per dollar of revenue, no tax policy generates more sound and fury than the taxation of estates. To supporters, the tax is a break on the concentration of wealth and power and an easy way to fund redistribution. To opponents, the tax is an unjust punishment of the... View Details
Keywords: Atkinson-Stiglitz; Optimal Capital Taxation; Bequest Motives; Taxation; Family and Family Relationships; Property
Weinzierl, Matthew, Katrina Flanagan, and Valerie Galinskaya. "The Estate Tax Debate." Harvard Business School Case 714-032, February 2014. (Revised August 2015.)
- December 2006
- Article
Europe vs America: Institutional Hysteresis in a Simple Normative Model
By: Rafael Di Tella and Robert MacCulloch
We show how the differences in US and European institutions can arise in a normative model. The paper focuses on the labor market and the government's decision to set unemployment benefits in response to an unemployment shock. The government balances insurance... View Details
Keywords: Optimal Unemployment Benefits; Labor Market Institutions; Hysteresis; Europe; United States
Di Tella, Rafael, and Robert MacCulloch. "Europe vs America: Institutional Hysteresis in a Simple Normative Model." Journal of Public Economics 90, no. 12 (December 2006): 2161–86.
- Article
Total Cost Control in Project Management via Satisficing
By: Joel Goh and Nicholas G. Hall
We consider projects with uncertain activity times and the possibility of expediting, or crashing, them. Activity times come from a partially specified distribution within a family of distributions. This family is described by one or more of the following details about... View Details
Keywords: Project Management; Time And Cost Control; Robust Optimization; Satisficing; Linear Decision Rule; PERT; Management; Cost Management; Projects
Goh, Joel, and Nicholas G. Hall. "Total Cost Control in Project Management via Satisficing." Management Science 59, no. 6 (June 2013): 1354–1372.
- 2021
- Working Paper
Government Shareholdings in Brokerage Firms and Analyst Research Quality
By: Sheng Cao, Xianjie He, Charles C.Y. Wang and Huifang Yin
During times when the Chinese government wished to prop up the market, sell-side analysts from brokerages with significant government ownership issued relatively less pessimistic (or more optimistic) earnings forecasts, earnings-forecast revisions, and stock... View Details
Keywords: Sell-side Analysts; Forecast Optimism; Forecast Accuracy; Government Incentives; Stocks; Forecasting and Prediction; Business and Government Relations; Emerging Markets
Cao, Sheng, Xianjie He, Charles C.Y. Wang, and Huifang Yin. "Government Shareholdings in Brokerage Firms and Analyst Research Quality." Harvard Business School Working Paper, No. 18-095, March 2018. (Revised June 2021.)
- October 2024
- Article
Canary Categories
By: Eric Anderson, Chaoqun Chen, Ayelet Israeli and Duncan Simester
Past customer spending in a category is generally a positive signal of future customer spending. We show that there exist “canary categories” for which the reverse is true. Purchases in these categories are a signal that customers are less likely to return to that... View Details
Keywords: Churn; Churn Management; Churn/retention; Assortment Planning; Retail; Retailing; Retailing Industry; Preference Heterogeneity; Assortment Optimization; Customers; Retention; Consumer Behavior; Forecasting and Prediction; Retail Industry
Anderson, Eric, Chaoqun Chen, Ayelet Israeli, and Duncan Simester. "Canary Categories." Journal of Marketing Research (JMR) 61, no. 5 (October 2024): 872–890.
- Article
The Stock Selection and Performance of Buy-Side Analysts
We examine the selection and performance of stocks recommended by analysts at a large investment firm relative to those of sell-side analysts during the period mid-1997 and 2004. The buy-side firm's analysts issued less optimistic recommendations for stocks with larger... View Details
Keywords: Buy-side Analysts; Sell-side Analysts; Stock Recommendations; Recommendation Optimism; Recommendation Performance; Investment Recommendations; Conflicts Of Interest; Financial Markets; Financial Institutions; Stocks; Financial Services Industry; United States
Groysberg, Boris, Paul M. Healy, Georgios Serafeim, Devin Shanthikumar, and Gui Yang. "The Stock Selection and Performance of Buy-Side Analysts." Harvard Business School Working Knowledge (March 20, 2012).
- March 2018
- Case
EKOL Logistics: Thinking Outside the Box
By: Willy C. Shih and Esel Çekin
This case describes Ekol, an intermodal transportation and logistics company, and how it manages capacity planning. Its busiest routes linked motor vehicle assemblers in Germany and Turkey with many of their parts suppliers, but it had also developed key links in... View Details
Keywords: Growth And Development; Strategy; Intermodal Transportation; Short-sea Transportation; Capacity Management; Capacity Planning; Delivery Planning; Route Optimization; Car Spare Part; Auto Manufacturing; Automotive Supply Chain; Europe; Turkey; Service Design; Fast Fashion; Near-shoring; Supply Chain; Supply Chain Management; Operations; Performance Capacity; Performance Efficiency; Logistics; Transportation Industry; Auto Industry; Turkey; Germany; Spain; European Union; Europe
Shih, Willy C., and Esel Çekin. "EKOL Logistics: Thinking Outside the Box." Harvard Business School Case 618-037, March 2018.
- May 2013
- Article
The Stock Selection and Performance of Buy-Side Analysts
Prior research on equity analysts focuses almost exclusively on those employed by sell-side investment banks and brokerage houses. Yet investment firms undertake their own buy-side research and their analysts face different stock selection and recommendation incentives... View Details
Keywords: Buy-side Analysts; Sell-side Analysts; Stock Recommendations; Recommendation Optimism; Recommendation Performance; Investment Recommendations; Conflicts Of Interest; Financial Markets; Financial Institutions; Financial Services Industry; United States
Groysberg, Boris, Paul Healy, George Serafeim, and Devin Shanthikumar. "The Stock Selection and Performance of Buy-Side Analysts." Management Science 59, no. 5 (May 2013): 1062–1075.