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- All HBS Web
(727)
- News (33)
- Research (636)
- Events (2)
- Multimedia (3)
- Faculty Publications (360)
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- March 17, 2021
- Other Article
Beyond Pajamas: Sizing Up the Pandemic Shopper
By: Ayelet Israeli, Eva Ascarza and Laura Castrillo
A first look at how the COVID-19 pandemic impacted e-commerce apparel shopping in the US and the UK. Extensive analysis and interactive graphics utilizing millions of transactions.
While the pandemic is still playing out, our preliminary investigations... View Details
While the pandemic is still playing out, our preliminary investigations... View Details
Keywords: Retail; Retail Analytics; Consumer; Pandemic; COVID; COVID-19; Apparel; Ecommerce; Online Shopping; Online Apparel; Online Sales; Returns; CRM; Customer Retention; Customer Experience; Customer Value; Digital; Customer Focus and Relationships; Customers; Health Pandemics; Consumer Behavior; Customer Relationship Management; Internet and the Web; Behavior; E-commerce; Retail Industry; Apparel and Accessories Industry; Technology Industry; United States; United Kingdom
Israeli, Ayelet, Eva Ascarza, and Laura Castrillo. "Beyond Pajamas: Sizing Up the Pandemic Shopper." Harvard Business School Working Knowledge (March 17, 2021).
- 15 May 2024
- Research & Ideas
A Major Roadblock for Autonomous Cars: Motorists Believe They Drive Better
may be bridling widespread acceptance of automation, says Julian De Freitas, an assistant professor of business administration at Harvard Business School, and one of the authors of the piece forthcoming in the Journal of the Association for View Details
- May–June 2024
- Article
What Makes a Successful Celebrity Brand?
Celebrities have shifted from endorsing established brands to being influencers for established brands to drawing on their influence to create brands themselves. The authors examine what it takes to make celebrity brands work. View Details
Keywords: Celebrities; Celebrity Endorsement; Celebrity Management; Celebrity; Direct To Consumer Marketing; DTC; Influencer Marketing; Influencers; Influencer Advertising; Influencer; Brands and Branding; Product Marketing; Power and Influence; Advertising; Social Media; Consumer Products Industry; United States
Israeli, Ayelet, Jill Avery, Leonard A. Schlesinger, and Matt Higgins. "What Makes a Successful Celebrity Brand?" Harvard Business Review 102, no. 3 (May–June 2024): 50–55.
- July 2024
- Article
How Artificial Intelligence Constrains Human Experience
By: A. Valenzuela, S. Puntoni, D. Hoffman, N. Castelo, J. De Freitas, B. Dietvorst, C. Hildebrand, Y.E. Huh, R. Meyer, M. Sweeney, S. Talaifar, G. Tomaino and K. Wertenbroch
Many consumption decisions and experiences are digitally mediated. As a consequence, consumer behavior is increasingly the joint product of human psychology and ubiquitous algorithms (Braun et al. 2024; cf. Melumad et al. 2020). The coming of age of Large Language... View Details
Keywords: Large Language Model; User Experience; AI and Machine Learning; Consumer Behavior; Technology Adoption; Risk and Uncertainty; Cost vs Benefits
Valenzuela, A., S. Puntoni, D. Hoffman, N. Castelo, J. De Freitas, B. Dietvorst, C. Hildebrand, Y.E. Huh, R. Meyer, M. Sweeney, S. Talaifar, G. Tomaino, and K. Wertenbroch. "How Artificial Intelligence Constrains Human Experience." Journal of the Association for Consumer Research 9, no. 3 (July 2024): 241–256.
- Research Summary
Current Research
By: Leslie K. John
Professor John is a behavioral scientist who uses both laboratory and field experiments to investigate questions that are at the intersection of marketing, organizational behavior, and public policy.
Professor John’s work has been published in leading... View Details
- 2011
- White Paper
Brands Are People Too! Harnessing the Power of Brand Warmth and Competence
By: Chris Malone, Jill Avery and S. T. Fiske
Research in customer behavior has revealed that the way humans respond to brands is simply an extension of the way they instinctively perceive, judge, and behave towards one another. Understanding how consumers judge brands using social processes akin to those used in... View Details
Keywords: Brands; Brand Management; Customer Relationship Management; CRM; Brand Positioning; Brand Equity; Customers; Customer Focus and Relationships; Customer Satisfaction; Brands and Branding; Marketing; Marketing Communications; Marketing Strategy; Consumer Products Industry
Malone, Chris, Jill Avery, and S. T. Fiske. "Brands Are People Too! Harnessing the Power of Brand Warmth and Competence." White Paper Series, Relational Capital Group, Newtowne Square, PA, 2011.
- 2014
- Other Teaching and Training Material
Marketing Reading: Segmentation and Targeting
By: Sunil Gupta
This Reading introduces two of the integral parts of any marketing strategy: segmentation and targeting. It covers, first, all of the methods, techniques, and variables with which a business first uncovers the full range of its potential customers and then... View Details
Keywords: Behavioral Segmentation; Conjoint Analysis; Demographic Segmentation; Geographic Segmentation; Market Opportunities; Market Segmentation; Marketing; Marketing Strategy; Psychographic Segmentation; Unethical Marketing Practices; United States
Gupta, Sunil. "Marketing Reading: Segmentation and Targeting." Core Curriculum Readings Series. Boston: Harvard Business Publishing 8219, 2014.
- September 2023
- Case
The Meteoric Rise of Skims
Since its founding in 2019 by Kim Kardashian and Jens Grede, Skims, a solutions-oriented brand creating the next generation of underwear, loungewear, and shapewear with an eye toward body-type and skin-tone inclusivity, has experienced a meteoric rise. Kardashian, who... View Details
Keywords: Brand; Branding; Direct-to-consumer; DTC; Influencers; Influencer Marketing; Fashion; Growth; Direct Marketing; Influence; Reputation; Social Inference; Consumer Goods; Consumer Products; Female Entrepreneur; Female Protagonist; Entrepreneurship And Strategy; Brand ＆ Product Management; Competitive Advantage; Online Followers; Retail; Retail Formats; Retailing; Online Retail; Celebrities; Celebrity; Celebrity Endorsement; Go To Market Strategy; Apparel; Startup Marketing; Startups; Social Influencers; Brands and Branding; Growth and Development Strategy; Growth Management; Distribution Channels; Digital Marketing; Advertising; Power and Influence; Social Media; Consumer Products Industry; Consumer Products Industry; Consumer Products Industry; United States
Israeli, Ayelet, Jill Avery, and Leonard A. Schlesinger. "The Meteoric Rise of Skims." Harvard Business School Case 524-023, September 2023.
- 19 Dec 2022
- Research & Ideas
What Motivates People to Give Generously—and Why We Sometimes Don't
good. While one could argue that the warm glow is a “selfish” reason to give, I think it’s actually still a win for humanity. Julian Zlatev: There’s been a long debate in psychology about whether people are truly altruistic: Is altruism... View Details
- 2025
- Working Paper
Lessons from an App Update at Replika AI: Identity Discontinuity in Human-AI Relationships
By: Julian De Freitas, Noah Castelo, Ahmet Kaan Uğuralp and Zeliha Oğuz-Uğuralp
As consumers increasingly interact with AI applications specialized for social relationships, what
is the nature and depth of these relationships among actual users, and can company actions
influence these dynamics? We find that active users of the US-based AI... View Details
De Freitas, Julian, Noah Castelo, Ahmet Kaan Uğuralp, and Zeliha Oğuz-Uğuralp. "Lessons from an App Update at Replika AI: Identity Discontinuity in Human-AI Relationships." Harvard Business School Working Paper, No. 25-018, October 2024. (Revised May 2025.)
- March 2020
- Technical Note
Influencer Marketing
By: Jill Avery and Ayelet Israeli
Despite a heavy barrage of advertising, most consumers declare that their purchases are most influenced by the experiences, advice, and recommendations of others, and not by marketers. Interpersonal communication between and among consumers serves as a potent path for... View Details
Keywords: Influencers; Marketing; Marketing Communications; Brands and Branding; Marketing Strategy; Consumer Products Industry; Consumer Products Industry; Consumer Products Industry
Avery, Jill, and Ayelet Israeli. "Influencer Marketing." Harvard Business School Technical Note 520-075, March 2020.
- 2016
- Working Paper
Reviews, Reputation, and Revenue: The Case of Yelp.com
By: Michael Luca
Do online consumer reviews affect restaurant demand? I investigate this question using a novel dataset combining reviews from the website Yelp.com and restaurant data from the Washington State Department of Revenue. Because Yelp prominently displays a restaurant's... View Details
Keywords: Revenue; Network Effects; Reputation; Social and Collaborative Networks; Food and Beverage Industry; Service Industry; Washington (state, US)
Luca, Michael. "Reviews, Reputation, and Revenue: The Case of Yelp.com." Harvard Business School Working Paper, No. 12-016, September 2011. (Revised March 2016.)
- 27 Feb 2024
- Research & Ideas
Why Companies Should Share Their DEI Data (Even When It’s Unflattering)
studies, the team investigated how consumers respond when companies voluntarily disclose that data, since sharing those numbers with the public is optional. Maya Balakrishnan and Jimin Nam, doctoral students at HBS, wrote the study with... View Details
Keywords: by Shalene Gupta
- 03 Jun 2013
- Research & Ideas
The Power of Rituals in Life, Death, and Business
which Norton and fellow HBS Associate Professor Francesca Gino found that rituals indeed alleviate and reduce grief, even among people who don't inherently believe in the efficacy of rituals. Further experiments showed that ritualistic behavior also enhances the... View Details
Keywords: by Carmen Nobel
- 17 Dec 2014
- Research & Ideas
How Our Brain Determines if the Product is Worth the Price
neuroscientist and assistant professor in the Marketing unit at Harvard Business School, who conducted the research with Baba Shiv, a marketing professor and neuroeconomics expert at Stanford University's Graduate School of Business, and Brian Knutson, an associate... View Details
- 26 Jul 2022
- Research & Ideas
Burgers with Bugs? What Happens When Restaurants Ignore Online Reviews
There’s a saying in hospitality: The customer is always right. In fact, customers might be more influential than ever, according to a study of online restaurant reviews. Yelp, the website where consumers share their service experiences,... View Details
- 14 Dec 2010
- First Look
First Look: Dec. 14
and suggests that corporate diversification can serve an important insurance function for investors. Download the paper: http://www.hbs.edu/research/pdf/10-101.pdf The Psychological Costs of Pay-for-Performance: Implications for Strategic... View Details
Keywords: Sean Silverthorne
- April 2009
- Article
How to Market in a Downturn
By: John A. Quelch and Katherine Jocz
This article includes a one-page preview that quickly summarizes the key ideas and provides an overview of how the concepts work in practice along with suggestions for further reading. Because no two recessions are exactly alike, marketers find themselves in poorly... View Details
Keywords: Customers; Economic Slowdown and Stagnation; Spending; Marketing Strategy; Consumer Behavior; Segmentation
Quelch, John A., and Katherine Jocz. "How to Market in a Downturn." Harvard Business Review 87, no. 4 (April 2009): 52–62.
- May 2024
- Teaching Note
The Meteoric Rise of Skims
Teaching Note for HBS Case No. 524-023, "The Meteoric Rise of Skims." View Details
Keywords: Brand; Branding; Direct-to-consumer; DTC; Influencers; Influencer Marketing; Fashion; Growth; Direct Marketing; Influence; Reputation; Social Influence; Consumer Goods; Consumer Products; Female Entrepreneur; Female Protagonist; Entrepreneurship And Strategy; Brand ＆ Product Management; Competitive Advantage; Online Followers; Retail; Retail Formats; Retailing; Online Retail; Celebrities; Celebrity; Celebrity Endorsement; Go To Market Strategy; Apparel; Startup Marketing; Startups; Brands and Branding; Growth and Development Strategy; Growth Management; Distribution Channels; Digital Marketing; Advertising; Power and Influence; Social Media; Consumer Products Industry; Consumer Products Industry; Consumer Products Industry; United States
- 2012
- Article
Wider dem sauren Mund. Beiersdorfs U.S.-Geschaeft mit der Zahnpastamarke Pebeco
By: G. Jones and Christina Lubinski
This article examines the growth and ultimate demise of the toothpaste brand Pebeco, which was created by the German personal care company Beiersdorf in 1903. The brand was an enormous international success, becoming for a time the largest toothpaste brand in the... View Details
Keywords: Growth and Development; Market Entry and Exit; Problems and Challenges; Marketing Strategy; Markets; Change; Customers; Social Psychology; Science; Brands and Branding; Competitive Strategy; Consumer Products Industry; United States; Germany
Jones, G., and Christina Lubinski. "Wider dem sauren Mund. Beiersdorfs U.S.-Geschaeft mit der Zahnpastamarke Pebeco." Hamburger Wirtschafts-Chronik 9 (2012): 141–165.