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- All HBS Web
(1,958)
- Faculty Publications (567)
- March 2015
- Article
Business Model Evaluation: Quantifying Walmart's Sources of Advantage
By: Humberto Brea-Solís, Ramon Casadesus-Masanell and Emili Grifell-Tatjé
We develop an analytical framework on the basis of the economics of business performance to provide quantitative insight into the link between a firm's business model choices and its profit consequences. The method is applied to Walmart by building a qualitative... View Details
Keywords: Business Models; Quantitative Analysis; Walmart; Production Theory; Business Model; Competitive Advantage; Profit
Brea-Solís, Humberto, Ramon Casadesus-Masanell, and Emili Grifell-Tatjé. "Business Model Evaluation: Quantifying Walmart's Sources of Advantage." Strategic Entrepreneurship Journal 9, no. 1 (March 2015): 12–33.
- 2015
- Working Paper
Configurations of Extremal Type II Codes
By: Noam D. Elkies and Scott Duke Kominers
We prove configuration results for extremal Type II codes, analogous to the configuration results of Ozeki and of the second author for extremal Type II lattices. Specifically, we show that for n∈{8,24,32,48,56,72,96} every extremal Type II code of length n is... View Details
Keywords: Mathematical Methods
Elkies, Noam D., and Scott Duke Kominers. "Configurations of Extremal Type II Codes." Working Paper, March 2015.
- 2015
- Chapter
Optimal Process Control of Symbolic Transfer Functions
By: Christopher Griffin and Elisabeth Paulson
Transfer function modeling is a standard technique in classical Linear Time Invariant and Statistical Process Control. The work of Box and Jenkins was seminal in developing methods for identifying parameters associated with classical (r, s, k) transfer functions.... View Details
Keywords: Transfer Functions; Markov Processes; Stochastic Models; Process Control; Research; Information Technology
Griffin, Christopher, and Elisabeth Paulson. "Optimal Process Control of Symbolic Transfer Functions." In Proceedings of the 10th International Workshop on Feedback Computing. IEEE, 2015.
- Article
Aztec Castles and the dP3 Quiver
By: Megan Leoni, Gregg Musiker, Seth Neel and Paxton Turner
Bipartite, periodic, planar graphs known as brane tilings can be associated to a large class of quivers. This paper will explore new algebraic properties of the well-studied del Pezzo 3 (dP3) quiver and geometric properties of its corresponding brane tiling. In... View Details
Leoni, Megan, Gregg Musiker, Seth Neel, and Paxton Turner. "Aztec Castles and the dP3 Quiver." Journal of Physics A: Mathematical and Theoretical 47, no. 47 (November 28, 2014).
- October 2014
- Article
The Promise of Positive Optimal Taxation: Normative Diversity and a Role for Equal Sacrifice
A prominent assumption in modern optimal tax research is that the objective of taxation is Utilitarian. I present new survey evidence that most people disagree with this assumption, preferring tax policies based at least in part on a classic alternative objective: the... View Details
Weinzierl, Matthew. "The Promise of Positive Optimal Taxation: Normative Diversity and a Role for Equal Sacrifice." Journal of Public Economics 118 (October 2014): 128–142. (Also NBER Working Paper Series, No. 18599.)
- 2014
- Chapter
Building an Infrastructure for Empirical Research on Social Enterprise: Challenges and Opportunities
By: Matthew Lee, Julie Battilana and Ting Wang
Purpose: Despite the increase in empirical studies of social enterprise in management and organization research, the lack of a cohesive knowledge base in this area is concerning. In this chapter, we propose that the underdevelopment of the attendant research... View Details
Keywords: Social Entrepreneurship
Lee, Matthew, Julie Battilana, and Ting Wang. "Building an Infrastructure for Empirical Research on Social Enterprise: Challenges and Opportunities." In Social Entrepreneurship and Research Methods. Vol. 9, edited by Jeremy C. Short, David J. Ketchen, and Donald D. Bergh, 241–264. Research Methodology in Strategy and Management. Emerald Group Publishing, 2014.
- 2014
- Working Paper
Non-Adherence in Health Care: A Positive and Normative Analysis
By: Mark Egan and Tomas J. Philipson
Non-adherence in health care results when a patient does not initiate or continue care that a provider has recommended. Previous research identifies non-adherence as a major source of waste in US health care, totaling approximately 2.3% of GDP, and have proposed a... View Details
Egan, Mark, and Tomas J. Philipson. "Non-Adherence in Health Care: A Positive and Normative Analysis." NBER Working Paper Series, No. 20330, July 2014. (Previously titled, "Health Care Adherence and Personalized Medicine.")
- Article
Asymptotic Improvements of Lower Bounds for the Least Common Multiples of Arithmetic Progressions
By: Daniel M. Kane and Scott Duke Kominers
For relatively prime positive integers and r, we consider the least common multiple L_n:=\mathop{\textrm{lcm}}(u_0,u_1,\dots, u_n) of the finite arithmetic progression \{u_k:=u_0+kr\}_{k=0}^n. We derive new lower bounds on L_n that improve upon those obtained... View Details
Keywords: Mathematical Methods
Kane, Daniel M., and Scott Duke Kominers. "Asymptotic Improvements of Lower Bounds for the Least Common Multiples of Arithmetic Progressions." Canadian Mathematical Bulletin 57, no. 3 (September 2014): 551–561.
- April 2014
- Tutorial
Conjoint Analysis: Online Tutorial
By: Elie Ofek and Olivier Toubia
The Conjoint Analysis: Online Tutorial is an interactive pedagogical vehicle intended to facilitate understanding of one of the most popular market research methods in academia and practice, namely conjoint analysis. The aim is to provide students or executives going... View Details
- January 2014
- Technical Note
Learning From Extreme Consumers
By: Jill Avery and Michael Norton
Traditional market research methods focus on understanding the average experiences of average consumers. This focus leads to gaps in our knowledge of consumer behavior and often fails to uncover insights that can drive revolutionary, rather than evolutionary... View Details
Keywords: Market Research; Ethnography; Design Thinking; Innovation; New Product Development; Research; Marketing; Consumer Behavior; Innovation and Invention
Avery, Jill, and Michael Norton. "Learning From Extreme Consumers." Harvard Business School Technical Note 314-086, January 2014.
- October 2013
- Article
How Much to Make and How Much to Buy? An Analysis of Optimal Plural Sourcing Strategies
By: Phanish Puranam, Ranjay Gulati and Sourav Bhattacharya
While many theories of the firm seek to explain when firms make rather than buy, in practice, firms often make and buy the same input—they engage in plural sourcing. We argue that explaining the mix of external procurement and internal sourcing for the same input... View Details
Keywords: Supply Chain; Forecasting and Prediction; Framework; Prejudice and Bias; Mathematical Methods
Puranam, Phanish, Ranjay Gulati, and Sourav Bhattacharya. "How Much to Make and How Much to Buy? An Analysis of Optimal Plural Sourcing Strategies." Strategic Management Journal 34, no. 10 (October 2013): 1145–1161.
- 2013
- Book
The Art of Negotiation: How to Improvise Agreement in a Chaotic World
By: Michael Wheeler
A member of the world-renowned Program on Negotiation at Harvard Law School introduces the powerful next-generation approach to negotiation. For many years, two approaches to negotiation have prevailed: the "win-win" method exemplified in Getting to Yes by Roger... View Details
Keywords: Negotiation
Wheeler, Michael. The Art of Negotiation: How to Improvise Agreement in a Chaotic World. New York: Simon & Schuster, 2013.
- 2013
- Working Paper
Applying Random Coefficient Models to Strategy Research: Testing for Firm Heterogeneity, Predicting Firm-Specific Coefficients, and Estimating Strategy Trade-Offs
By: Juan Alcacer, Wilbur Chung, Ashton Hawk and Goncalo Pacheco-de-Almeida
Although Strategy research aims to understand how firm actions have differential effects on performance, most empirical research estimates the average effects of these actions across firms. This paper promotes Random Coefficients Models (RCMs) as an ideal empirical... View Details
Alcacer, Juan, Wilbur Chung, Ashton Hawk, and Goncalo Pacheco-de-Almeida. "Applying Random Coefficient Models to Strategy Research: Testing for Firm Heterogeneity, Predicting Firm-Specific Coefficients, and Estimating Strategy Trade-Offs." Harvard Business School Working Paper, No. 14-022, September 2013.
- 2013
- Working Paper
Where do the Most Active Customers Originate and How Can Firms Keep Them Engaged?
By: Clarence Lee, E. Ofek and Thomas Steenburgh
In this paper, we study how firms offering Web services can acquire and develop an active customer base. We focus on two basic questions. First, how does the method of customer acquisition affect the way customers use the service to meet their own needs and to interact... View Details
- July–August 2013
- Article
A Joint Model of Usage and Churn in Contractual Settings
By: Eva Ascarza and Bruce G.S. Hardie
As firms become more customer-centric, concepts such as customer equity come to the fore. Any serious attempt to quantify customer equity requires modeling techniques that can provide accurate multiperiod forecasts of customer behavior. Although a number of researchers... View Details
Keywords: Churn; Retention; Contractual Settings; Access Services; Hidden Markov Models; RFM; Latent Variable Models; Customer Value and Value Chain; Consumer Behavior
Ascarza, Eva, and Bruce G.S. Hardie. "A Joint Model of Usage and Churn in Contractual Settings." Marketing Science 32, no. 4 (July–August 2013): 570–590.
- July 2013
- Case
Novozymes: Establishing the Cellulosic Ethanol Value Chain
By: Willy Shih and Sen Chai
As the world's largest producer of industrial enzymes, Novozymes had invested heavily for many years to bio-engineer enzymes that could break down cellulose into fermentable sugar. In 2010, the company had launched what it thought would become a breakthrough product... View Details
Keywords: System Complexity; Industrial Enzymes; Ethanol; Collulosic Ethanol; Fermentation; Genomics; Genetic Engineering; Value Chain; Assembling Value Chain; Energy Sources; Renewable Energy; Collaborative Innovation and Invention; Innovation and Management; Innovation Strategy; Technological Innovation; Management; Growth and Development Strategy; Industry Growth; Production; Research; Research and Development; Science; Genetics; Natural Environment; Environmental Sustainability; Science-Based Business; Business Strategy; Commercialization; Vertical Integration; Agriculture and Agribusiness Industry; Biotechnology Industry; Energy Industry; Denmark; United States
Shih, Willy, and Sen Chai. "Novozymes: Establishing the Cellulosic Ethanol Value Chain." Harvard Business School Case 614-001, July 2013.
- June 2013 (Revised November 2022)
- Exercise
Competition Simulator Exercise
In the Competition Simulator Exercise, students explore through trial and error some important economic foundations of competitive strategy and managerial economics. In particular, the nine simulator exercises let students explore horizontal differentiation with and... View Details
Keywords: Competition; Economics; Game Theory; Competitive Strategy; Learning; Mathematical Methods; Analysis
Van den Steen, Eric J. "Competition Simulator Exercise." Harvard Business School Exercise 713-804, June 2013. (Revised November 2022.)
- 2013
- Chapter
Privacy Breach Analysis in Social Networks
By: Frank Nagle
Over the past 5–10 years, online social networks have rapidly expanded, and as of March 2012 the largest online social network, Facebook, had over 901 million active members. The wealth of information users post in their social network profiles, as well as the... View Details
Keywords: Crime and Corruption; Social and Collaborative Networks; Social Media; Cybersecurity; Analytics and Data Science
Nagle, Frank. "Privacy Breach Analysis in Social Networks." In Mining Social Networks and Security Informatics, edited by Tansel Ozyer, Zeki Erdem, Jon Rokne, and Suheil Khoury, 63–77. Springer Science + Business Media, 2013.
- April 2013
- Case
Managing with Analytics at Procter & Gamble
By: Thomas H. Davenport, Marco Iansiti and Alain Serels
Senior management at P&G has put a strong emphasis on using data to make "better, smarter, real-time business decisions." The Global Business Services (GBS) organization has developed tools, systems and processes to provide managers throughout P&G with direct access to... View Details
Keywords: Analytics; Data Management; Forecasting; Shared Services; Procter & Gamble; Laundry Detergent; Information Management; Forecasting and Prediction; Information Technology; Mathematical Methods; Consumer Products Industry; North America
Davenport, Thomas H., Marco Iansiti, and Alain Serels. "Managing with Analytics at Procter & Gamble." Harvard Business School Case 613-045, April 2013.
- September 2013
- Article
Cultures as Learning Laboratories: What Makes Some More Effective than Others?
By: Elaine Mosakowski, Goran Calic and P C Early
With a mandate to globalize, business school educators have increasingly embraced global service learning as an important technique for creating global mind-sets and enhancing cultural understanding in students. While we applaud this movement from the domestic to the... View Details
Keywords: Business Education; Learning; Cognition and Thinking; Cross-Cultural and Cross-Border Issues
Mosakowski, Elaine, Goran Calic, and P C Early. "Cultures as Learning Laboratories: What Makes Some More Effective than Others?" Academy of Management Learning & Education 12, no. 3 (September 2013): 512–526.