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- Faculty Publications (3,833)
Show Results For
- All HBS Web
(7,490)
- People (19)
- News (1,299)
- Research (5,128)
- Events (62)
- Multimedia (60)
- Faculty Publications (3,833)
- Article
When Talk Is "Free": The Effect of Tariff Structure on Usage Under Two- and Three-Part Tariffs
By: Eva Ascarza, Anja Lambrecht and Naufel Vilcassim
In many service industries, firms introduce three-part tariffs to replace or complement existing two-part tariffs. In contrast with two-part tariffs, three-part tariffs offer allowances, or “free” units of the service. Behavioral research suggests that the attributes... View Details
Keywords: Pricing; Nonlinear Pricing; Discrete/continuous Choice Model; Three-part Tariffs; Uncertainty; Learning; Free Products; Price; Consumer Behavior; Analysis
Ascarza, Eva, Anja Lambrecht, and Naufel Vilcassim. When Talk Is "Free": The Effect of Tariff Structure on Usage Under Two- and Three-Part Tariffs. Journal of Marketing Research (JMR) 49, no. 6 (December 2012): 882–900.
- February 2015 (Revised June 2016)
- Case
AltSchool: School Reimagined
By: John J-H Kim, Kyla Wilkes and Christine S. An
Max Ventilla and his team launches in 2013 AltSchool, a new network of tech-savvy independent K-8 "micro-schools." AltSchool is born out of Ventilla's frustration with the education options available for his young daughter. During his search, Ventilla comes to the... View Details
Keywords: Education Technology; School Models; Product Development; Entrepreneurship; Talent Development And Retention; Social Impact Investment; Information Technology; Business Model; Education; Business Startups; Customization and Personalization; Growth and Development Strategy; Education Industry; United States
Kim, John J-H, Kyla Wilkes, and Christine S. An. "AltSchool: School Reimagined." Harvard Business School Case 315-054, February 2015. (Revised June 2016.)
- 2017
- Working Paper
Optimal Tilts: Combining Persistent Characteristic Portfolios
By: Malcolm Baker, Ryan Taliaferro and Terry Burnham
We examine the optimal weighting of four tilts in US equity markets from 1968 through 2014. We define a “tilt” as a characteristic-based portfolio strategy that requires relatively low annual turnover. This is a continuum, with small size, a very persistent... View Details
Baker, Malcolm, Ryan Taliaferro, and Terry Burnham. "Optimal Tilts: Combining Persistent Characteristic Portfolios." Working Paper, March 2017.
- Fourth Quarter 2017
- Article
Optimal Tilts: Combining Persistent Characteristic Portfolios
By: Malcolm Baker, Ryan Taliaferro and Terry Burnham
We examine the optimal weighting of four tilts in U.S. equity markets from 1968 through 2014. We define a “tilt” as a characteristic-based portfolio strategy that requires relatively low annual turnover. This is a continuum, with small size (a very persistent... View Details
Baker, Malcolm, Ryan Taliaferro, and Terry Burnham. "Optimal Tilts: Combining Persistent Characteristic Portfolios." Financial Analysts Journal 73, no. 4 (Fourth Quarter 2017): 75–89.
- 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 2024
- Article
Chatbots and Mental Health: Insights into the Safety of Generative AI
By: Julian De Freitas, Ahmet Kaan Uğuralp, Zeliha Uğuralp and Stefano Puntoni
Chatbots are now able to engage in sophisticated conversations with consumers. Due to the ‘black box’ nature of the algorithms, it is impossible to predict in advance how these conversations will unfold. Behavioral research provides little insight into potential safety... View Details
Keywords: Autonomy; Chatbots; New Technology; Brand Crises; Mental Health; Large Language Model; AI and Machine Learning; Behavior; Well-being; Technological Innovation; Ethics
De Freitas, Julian, Ahmet Kaan Uğuralp, Zeliha Uğuralp, and Stefano Puntoni. "Chatbots and Mental Health: Insights into the Safety of Generative AI." Journal of Consumer Psychology 34, no. 3 (July 2024): 481–491.
- December 2017 (Revised May 2018)
- Case
Amazon Buys Whole Foods
By: José B. Alvarez, David Lane and Joni Coughlin
The June 2017 news that e-commerce giant Amazon was paying $13.7 billion for organic supermarket chain Whole Foods precipitated a broad sell-off in the shares of grocery retailers and suppliers. Behind the precipitous declines lay recognition that Amazon’s bold move... View Details
Keywords: Amazon; Whole Foods; Grocery; Grocery Delivery; Mergers ＆ Acquisitions; Business Models; Food Value Chain; Agribusiness; Mergers and Acquisitions; Operations; Competitive Strategy; E-commerce; Agriculture and Agribusiness Industry; Retail Industry; Web Services Industry; Food and Beverage Industry; United States
Alvarez, José B., David Lane, and Joni Coughlin. "Amazon Buys Whole Foods." Harvard Business School Case 518-056, December 2017. (Revised May 2018.)
- Article
Multi-Echelon Inventory Management Under Short-Term Take-or-Pay Contracts
By: Joel Goh and Evan L. Porteus
We extend the Clark–Scarf serial multi-echelon inventory model to include procuring production inputs under short-term take-or-pay contracts at one or more stages. In each period, each such stage has the option to order/process at two different cost rates; the cheaper... View Details
Keywords: Inventory Management; Multi-echelon Inventory Theory; Karush Lemma; Clark-Scarf Model; Convex Ordering Cost; Advance Commitments; Supply Chain
Goh, Joel, and Evan L. Porteus. "Multi-Echelon Inventory Management Under Short-Term Take-or-Pay Contracts." Production and Operations Management 25, no. 8 (August 2016): 1415–1429. (Finalist for 2014 POMS College of Supply Chain Management Student Paper Award.)
- September 2023
- Teaching Note
Apple’s iPhone Revolution: Pioneering the Circular Economy
By: George Serafeim
Teaching Note for HBS Case 123-089. The case describes the Trade-In system for iPhones that allow iPhones to be refurbished and reused or to be recycled. The case provides information for the students to analyze the financial attractiveness of the Trade-In system and... View Details
- Forthcoming
- Article
On the Representativeness of Voter Turnout
By: Louis Kaplow and Scott Duke Kominers
Prominent theory research on voting analyzes a variety of models in which expected pivotality drives voters' turnout decisions and hence determines voting outcomes. It is recognized, however, that such work is at odds with Downs's paradox: in practice, many... View Details
Keywords: Voting Behavior; Voting Turnout; Paradox Of Voting; Pivotality; Elections; Model; Theory; Governance Transparency; Government; Democracy; Turnout; Voting; Governance; Government and Politics; Public Sector; Political Elections
Kaplow, Louis, and Scott Duke Kominers. "On the Representativeness of Voter Turnout." Journal of Law & Economics (forthcoming).
- April 2020
- Article
Designs for Estimating the Treatment Effect in Networks with Interference
By: Ravi Jagadeesan, Natesh S. Pillai and Alexander Volfovsky
In this paper, we introduce new, easily implementable designs for drawing causal inference from randomized experiments on networks with interference. Inspired by the idea of matching in observational studies, we introduce the notion of considering a treatment... View Details
Keywords: Experimental Design; Network Inference; Neyman Estimator; Symmetric Interference Model; Homophily
Jagadeesan, Ravi, Natesh S. Pillai, and Alexander Volfovsky. "Designs for Estimating the Treatment Effect in Networks with Interference." Annals of Statistics 48, no. 2 (April 2020): 679–712.
- May 2017 (Revised November 2019)
- Case
The Dubai International Film Festival
By: Rohit Deshpandé and Alpana Thapar
This case follows the conception and emergence of the Dubai International Film Festival (DIFF). In an already crowded and highly competitive industry, Abdulhamid Juma was attempting to define and establish a unique brand positioning for DIFF. Committed to its vision,... View Details
Keywords: Brand Positioning; Underdog Brand Building; Business Models; Non-profit; Managing Multiple Stakeholders; Film Entertainment; Brands and Branding; Business Model; Competitive Strategy; Decision Making; Growth and Development Strategy; Entertainment and Recreation Industry; Motion Pictures and Video Industry
Deshpandé, Rohit, and Alpana Thapar. "The Dubai International Film Festival." Harvard Business School Case 517-110, May 2017. (Revised November 2019.)
- January 2017 (Revised October 2023)
- Case
Classtivity: Payal's Pirouette
By: Jeffrey J. Bussgang and Olivia Hull
A few months after launching a new fitness technology product, the small staff of New York startup Classtivity gathers on a Saturday in April 2013 to take stock. With one successful pivot under its belt, Classtivity is finally generating revenue and enthusiasm among... View Details
Keywords: Product Pivot; Boutique Fitness; Fitness Industry; Market Sizing; Consumer Technology; Bundling; Subscription Model; Two-sided Marketplace; ClassPass; Entrepreneurship; Venture Capital; Business Startups; Transition; Customer Focus and Relationships; Technological Innovation; Organizational Change and Adaptation; Customer Value and Value Chain; Marketing Strategy; Failure; Business Strategy; Technology Industry; Health Industry; New York (city, NY)
Bussgang, Jeffrey J., and Olivia Hull. "Classtivity: Payal's Pirouette." Harvard Business School Case 817-002, January 2017. (Revised October 2023.)
- March–April 2014
- Article
The Low-Risk Anomaly: A Decomposition into Micro and Macro Effects
By: Malcolm Baker, Brendan Bradley and Ryan Taliaferro
Low beta stocks have offered a combination of low risk and high returns. We decompose the anomaly into micro and macro components. The micro component comes from the selection of low beta stocks. The macro component comes from the selection of low beta countries or... View Details
Keywords: Low Volatility; Beta; Portfolio Construction; Market Efficiency; Capital Asset Pricing Model; Asset Management
Baker, Malcolm, Brendan Bradley, and Ryan Taliaferro. "The Low-Risk Anomaly: A Decomposition into Micro and Macro Effects." Financial Analysts Journal 70, no. 2 (March–April 2014): 43–58.
- September 2021 (Revised December 2021)
- Case
STARZPLAY: Shooting for the Stars
By: Elie Ofek, Marco Bertini and Alpana Thapar
In mid-2021, Maaz Sheikh, cofounder and CEO of STARZPLAY, a Dubai-based subscription video on demand (SVOD) provider that catered to the Middle East and North Africa region, was wrestling with how to find the right balance between continued subscriber growth and... View Details
Keywords: Pricing; Growth; Profitability; Subscription Business; Business Model Innovation; Fintech; Subscription; Performance Measurement; Promotions; International Marketing; Streaming; Competition; Marketing; Price; Strategy; Entrepreneurship; Performance; Measurement and Metrics; Business Model; Media and Broadcasting Industry; Middle East; North Africa
Ofek, Elie, Marco Bertini, and Alpana Thapar. "STARZPLAY: Shooting for the Stars." Harvard Business School Case 522-005, September 2021. (Revised December 2021.)
- October 2022
- Case
Volt Lines: Leading a B2B Service Provider through a Crisis (A)
By: Navid Mojir and Gamze Yucaoglu
Volt Lines was a next-generation transportation service in Istanbul, Turkey. The company was trying to disrupt the traditional corporate transportation market by developing software that allowed it to offer subscription-based transportation. Under the subscription... View Details
Keywords: Business To Business Marketing; B2B Marketing; B2B Pricing; Subscription Model; Crisis Marketing; Startup; Service Management; Information Technology; Transportation; COVID-19 Pandemic; Disruptive Innovation; Digital Platforms; Business Model; Price; Crisis Management; Opportunities; Transportation Industry; Technology Industry; Turkey
Mojir, Navid, and Gamze Yucaoglu. "Volt Lines: Leading a B2B Service Provider through a Crisis (A)." Harvard Business School Case 523-037, October 2022.
- 2021
- Working Paper
Time Dependence and Preference: Implications for Compensation Structure and Shift Scheduling
By: Doug J. Chung, Byungyeon Kim and Byoung G. Park
This study jointly examines agents’ time dependence—period effects within instantaneous utility—and time preference—behavior on discounting future utility. The study considers the start- and end-of-period effects for time dependence and exponential and hyperbolic... View Details
Keywords: Time Preferences; Present Bias; Hyperbolic Discounting; Compensation; Dynamic Structural Models; Identification; Time Management; Motivation and Incentives; Behavior; Performance; Compensation and Benefits
Chung, Doug J., Byungyeon Kim, and Byoung G. Park. "Time Dependence and Preference: Implications for Compensation Structure and Shift Scheduling." Harvard Business School Working Paper, No. 21-121, April 2021.
- May 2018
- Article
Nowcasting Gentrification: Using Yelp Data to Quantify Neighborhood Change
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
Data from digital platforms have the potential to improve our understanding of gentrification and enable new measures of how neighborhoods change in close to real time. Combining data on businesses from Yelp with data on gentrification from the Census, Federal Housing... View Details
Keywords: Forecasting Models; Simulation Methods; Regional Economic Activity: Growth, Development, Environmental Issues, And Changes; Geographic Location; Local Range; Transition; Analytics and Data Science; Measurement and Metrics; Economic Growth; Forecasting and Prediction
Glaeser, Edward L., Hyunjin Kim, and Michael Luca. "Nowcasting Gentrification: Using Yelp Data to Quantify Neighborhood Change." AEA Papers and Proceedings 108 (May 2018): 77–82.
- October 2013
- Article
Ad Revenue and Content Commercialization: Evidence from Blogs
By: Monic Sun and Feng Zhu
Many scholars argue that when incentivized by ad revenue, content providers are more likely to tailor their content to attract "eyeballs," and as a result, popular content may be excessively supplied. We empirically test this prediction by taking advantage of the... View Details
Keywords: Ad-sponsored Business Models; Media Content; Blog; Revenue Sharing; User-generated Content; Platform-based Markets; Blogs; Business Model; Digital Platforms; Commercialization; Digital Marketing
Sun, Monic, and Feng Zhu. "Ad Revenue and Content Commercialization: Evidence from Blogs." Management Science 59, no. 10 (October 2013): 2314–2331.
- June 2013 (Revised July 2013)
- Case
Blackstone Alternative Asset Management
By: Robin Greenwood, Luis M. Viceira and Jared Dourdeville
This case explores reasons for Blackstone Alternative Asset Management's (BAAM's) growth from 2007-2013, a time when the overall fund of hedge funds industry contracted substantially. Additionally, the case analyzes evolving business models and value propositions... View Details
Keywords: Hedge Fund; Fund Of Hedge Funds; Hedge Fund Industry Growth; Fund Of Hedge Funds Industry Growth; Evolving Business Models; Value Propositions In The Fund Of Hege Funds Industry; Business Model; Investment Funds; Growth and Development Strategy; Financial Services Industry; United States
Greenwood, Robin, Luis M. Viceira, and Jared Dourdeville. "Blackstone Alternative Asset Management." Harvard Business School Case 213-129, June 2013. (Revised July 2013.)