Filter Results:
(689)
Show Results For
- All HBS Web
(1,331)
- People (20)
- News (193)
- Research (689)
- Events (5)
- Multimedia (11)
- Faculty Publications (307)
Show Results For
- All HBS Web
(1,331)
- People (20)
- News (193)
- Research (689)
- Events (5)
- Multimedia (11)
- Faculty Publications (307)
Sort by
- August 2023
- Article
Do Rating Agencies Behave Defensively for Higher Risk Issuers?
By: Samuel B. Bonsall IV, Kevin Koharki, Pepa Kraft, Karl A. Muller III and Anywhere Sikochi
We examine whether rating agencies act defensively toward issuers with a higher likelihood of default. We find that agencies' qualitative soft rating adjustments are more accurate as issuers' default risk grows, as evidenced by the adjustments leading to lower Type I... View Details
Keywords: Credit Rating Agencies; Soft Rating Adjustments; Default; Credit; Performance Evaluation; Measurement and Metrics; Financial Institutions; Risk Management
Bonsall, Samuel B., IV, Kevin Koharki, Pepa Kraft, Karl A. Muller III, and Anywhere Sikochi. "Do Rating Agencies Behave Defensively for Higher Risk Issuers?" Management Science 69, no. 8 (August 2023): 4864–4887.
- 15 Sep 2003
- Lessons from the Classroom
HBS Cases: Developing the Courage to Act
Harvard Business School professor David A. Garvin has studied the development of the case method of teaching at Harvard's law, business, and medical schools. Garvin wanted to see how the schools are similar and different in their use of... View Details
Keywords: by David A. Garvin
- 2022
- Working Paper
Slowly Varying Regression under Sparsity
By: Dimitris Bertsimas, Vassilis Digalakis Jr, Michael Lingzhi Li and Omar Skali Lami
We consider the problem of parameter estimation in slowly varying regression models with sparsity constraints. We formulate the problem as a mixed integer optimization problem and demonstrate that it can be reformulated exactly as a binary convex optimization problem... View Details
Keywords: Mathematical Methods
Bertsimas, Dimitris, Vassilis Digalakis Jr, Michael Lingzhi Li, and Omar Skali Lami. "Slowly Varying Regression under Sparsity." Working Paper, September 2022.
- Article
Counterfactual Explanations Can Be Manipulated
By: Dylan Slack, Sophie Hilgard, Himabindu Lakkaraju and Sameer Singh
Counterfactual explanations are useful for both generating recourse and auditing fairness between groups. We seek to understand whether adversaries can manipulate counterfactual explanations in an algorithmic recourse setting: if counterfactual explanations indicate... View Details
Slack, Dylan, Sophie Hilgard, Himabindu Lakkaraju, and Sameer Singh. "Counterfactual Explanations Can Be Manipulated." Advances in Neural Information Processing Systems (NeurIPS) 34 (2021).
- October 2018
- Article
The Operational Value of Social Media Information
By: Ruomeng Cui, Santiago Gallino, Antonio Moreno and Dennis J. Zhang
While the value of using social media information has been established in multiple business contexts, the field of operations and supply chain management have not yet explored the possibilities it offers in improving firms' operational decisions. This study attempts to... View Details
Cui, Ruomeng, Santiago Gallino, Antonio Moreno, and Dennis J. Zhang. "The Operational Value of Social Media Information." Special Issue on Big Data in Supply Chain Management. Production and Operations Management 27, no. 10 (October 2018): 1749–1774.
- 17 Feb 2003
- Research & Ideas
Rating Fund Managers by the Company They Keep
from the Working Paper.Ann Cullen: How is your system different than traditional mutual fund rating systems? Cohen: Our method takes advantage of a wealth of previously unexploited information about fund holdings. Standard metrics rate... View Details
Keywords: by Ann Cullen
- 20 Oct 2011
- Research & Ideas
Getting the Marketing Mix Right
what is called the Invariant Proportion of Substitution (IPS) property, which implies that the proportion of demand generated by taking business away from a competitor is the same, no matter which marketing activity is used. "These... View Details
Keywords: by Dina Gerdeman
- 2020
- Working Paper
Strategic Foresight as Dynamic Capability: A New Lens on Knightian Uncertainty
By: J. Peter Scoblic
This paper proposes to treat strategic foresight as a dynamic capability, providing a new theoretical lens on managerial judgment. Formulating strategy under uncertainty is a central challenge facing the modern firm. Analogy is thought to help managers make sense of... View Details
Keywords: Foresight; Dynamic Capabilities; Managerial Judgment; Risk and Uncertainty; Management; Strategy
Scoblic, J. Peter. "Strategic Foresight as Dynamic Capability: A New Lens on Knightian Uncertainty." Harvard Business School Working Paper, No. 20-093, March 2020.
- November 2011
- Article
Social Strategies That Work
By: Mikolaj Jan Piskorski
Although most companies have collected lots of friends and followers on social platforms such as Facebook, few have succeeded in generating profits there. That's because they merely port their digital strategies into social environments by broadcasting their commercial... View Details
Keywords: Social Platforms; Social Strategies; Social and Collaborative Networks; Customers; Relationships; Business Strategy; Profit
Piskorski, Mikolaj Jan. "Social Strategies That Work." Harvard Business Review 89, no. 11 (November 2011): 116–122.
- Research Summary
Overview
By: Andy Wu
How can technology entrepreneurs build competitive advantage from the ground up? Professor Andy Wu conducts scholarly research and develops course materials that document how technology entrepreneurs can (1) organize for innovation to create new market opportunities... View Details
Keywords: Strategy; Entrepreneurship; Venture Capital; Growth Management; Organizational Design; Organizational Structure; Technology Platform; Technological Innovation; Information Technology Industry; Retail Industry; Pharmaceutical Industry; Video Game Industry; Media and Broadcasting Industry; United States; China; Southeast Asia; South Asia
- June–July 2019
- Article
A Methodology for Operationalizing Enterprise IT Architecture and Evaluating Its Modifiability
By: Robert Lagerström, Alan MacCormack, David Dreyfus and Carliss Y. Baldwin
Recent contributions to information systems theory suggest that the primary role of a firm’s information technology (IT) architecture is to facilitate, and therefore ensure the continued alignment of a firm’s IT investments with a constantly changing business... View Details
Keywords: Enterprise Architecture; Modularity; Information Systems; Modifiability; Design Structure Matrix
Lagerström, Robert, Alan MacCormack, David Dreyfus, and Carliss Y. Baldwin. "A Methodology for Operationalizing Enterprise IT Architecture and Evaluating Its Modifiability." Complex Systems Informatics and Modeling Quarterly 19 (June–July 2019): 75–98.
- Research Summary
Markets and Market Design
The topic on which I currently spend the most of my research energy is the study of strategic interaction and reputation systems on eBay and similar markets from an applied, market design perspective. The rise of the Internet allowed a whole new generation of markets... View Details
- 15 Aug 2005
- HBS Case
Classic Cases Live On at HBS
was still a low-cost producer. HBS professor emeritus Norm Berg, who developed the case along with research assistant Norman Fast (HBS DBA '77), was at the time course head of Business Policy, the School's required general management... View Details
Keywords: by Garry Emmons
- 13 Feb 2013
- Research & Ideas
5 Weight Loss Tips From Behavioral Economists
Weight Loss: A Randomized, Controlled Trial," published in the June 2011 edition of Journal of General Internal Medicine. TIP #3- Fill your backpack with rocks. A research team from Harvard and the University of Central Florida tested the... View Details
Keywords: by Carmen Nobel
- 30 Dec 2014
- Working Paper Summaries
Return on Political Investment in the American Jobs Creation Act of 2004
- November 2011
- Article
Ownership Structure and Financial Constraints: Evidence from a Structural Estimation
By: Chen Lin, Yue Ma and Yuhai Xuan
This article examines the impact of the divergence between corporate insiders' control rights and cash-flow rights on firms' external finance constraints via generalized method of moments estimation of an investment Euler equation. Using a large sample of U.S.... View Details
Keywords: Ownership; Social Enterprise; Reputation; Cash Flow; Annuities; Investment; Investment Funds; Financial Reporting; Accounting Audits; Financial Services Industry; United States
Lin, Chen, Yue Ma, and Yuhai Xuan. "Ownership Structure and Financial Constraints: Evidence from a Structural Estimation." Journal of Financial Economics 102, no. 2 (November 2011): 416–431.
- 20 Dec 2013
- Working Paper Summaries
Zooming In: A Practical Manual for Identifying Geographic Clusters
Keywords: by Juan Alcácer & Minyuan Zhao
- 05 Jun 2009
- What Do You Think?
What Does Slower Economic Growth Really Mean?
Summing Up If not useful growth, what are we measuring? And why? This column does not thrive on general agreement. And this past month discussants came close to general agreement on the proposition that... View Details
- 2022
- Working Paper
TalkToModel: Explaining Machine Learning Models with Interactive Natural Language Conversations
By: Dylan Slack, Satyapriya Krishna, Himabindu Lakkaraju and Sameer Singh
Practitioners increasingly use machine learning (ML) models, yet they have become more complex and harder to understand. To address this issue, researchers have proposed techniques to explain model predictions. However, practitioners struggle to use explainability... View Details
Slack, Dylan, Satyapriya Krishna, Himabindu Lakkaraju, and Sameer Singh. "TalkToModel: Explaining Machine Learning Models with Interactive Natural Language Conversations." Working Paper, 2022.