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      • June 2023
      • Supplement

      Clash of Two Giants Simulation Exercise

      By: Feng Zhu and Marco Iansiti
      Many markets are organized around platforms that connect consumers with complementary applications and services. These platforms are two-sided because both sides - consumers and those providing applications or services - need access to the same platform to interact. A... View Details
      Keywords: Customer Acquisition; Platform Strategy; Technology Platform; Digital Platforms; Competitive Strategy; Network Effects
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      Zhu, Feng, and Marco Iansiti. "Clash of Two Giants Simulation Exercise." Harvard Business School PowerPoint Supplement 623-717, June 2023.
      • June 2023
      • Exercise

      Clash of Two Giants Simulation Exercise Instructions

      By: Feng Zhu and Marco Iansiti
      Many markets are organized around platforms that connect consumers with complimentary applications and services. These platforms are two-sided because both sides - consumers and those providing applications or services - need access to the same platform to interact. A... View Details
      Keywords: Platform Strategies; Technology Platform; Customer Acquisition; Network Effects; Digital Platforms; Marketplace Matching; Strategy
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      Zhu, Feng, and Marco Iansiti. "Clash of Two Giants Simulation Exercise Instructions." Harvard Business School Exercise 623-092, June 2023.
      • June 2023 (Revised October 2024)
      • Teaching Note

      Clash of Two Giants Simulation Exercise Teaching Note

      By: Feng Zhu
      Teaching Note for HBS Case No. 623-092. Many markets are organized around platforms that connect consumers with complimentary applications and services. These platforms are two-sided because both sides—consumers and those providing applications or services—need access... View Details
      Keywords: Platform Strategy; Customer Acquisition; Technology Platform; Competitive Strategy; Network Effects; Digital Platforms; Management Skills
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      Zhu, Feng. "Clash of Two Giants Simulation Exercise Teaching Note." Harvard Business School Teaching Note 623-093, June 2023. (Revised October 2024.)
      • June 2023
      • Teaching Note

      Connecting Students in Chattanooga (A) and (B)

      By: Jan W. Rivkin
      Teaching Note for HBS Case Nos. 722-449 and 722-451. As this case opens, it is the spring of 2020 in Chattanooga. COVID-19 has hit, public schools have closed their buildings, remote learning has begun, and more than 28,000 schoolkids lack the high-quality Internet... View Details
      Keywords: K-12 Education; Pandemic; COVID-19; Accessibility; Education; Urban Development; Wealth and Poverty; Internet and the Web; Information Infrastructure; Education Industry; Tennessee
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      Rivkin, Jan W. "Connecting Students in Chattanooga (A) and (B)." Harvard Business School Teaching Note 723-458, June 2023.
      • May 2023
      • Technical Note

      Dynamic Pricing: Timing is Everything

      By: Elie Ofek
      This note provides a comprehensive exposition to the topic of dynamic pricing (whereby the fee customers are charged is time-dependent). It covers the motivation for firms to engage in dynamic pricing, provides a typology of the main formats dynamic pricing can take,... View Details
      Keywords: Dynamic Pricing; Price
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      Ofek, Elie. "Dynamic Pricing: Timing is Everything." Harvard Business School Technical Note 523-110, May 2023.
      • April 19, 2023
      • Editorial

      Extreme Views Are More Attractive Than Moderate Ones

      By: Amit Goldenberg
      Do you ever feel like everyone on social media has a more extreme viewpoint than your own? We often blame social media companies for the cacophony of politically extreme opinions around us. After all, these companies are generally motivated to promote the most... View Details
      Keywords: Social Media; Networks
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      Goldenberg, Amit. "Extreme Views Are More Attractive Than Moderate Ones." Scientific American (website) (April 19, 2023).
      • February 2023
      • Supplement

      Astyanax Kanakakis at norbloc: A Founder's Experience with the DIFC Fintech Hive

      By: Linda A. Hill and Lydia Begag
      norbloc was founded in 2016 in Stockholm, Sweden, by Astyanax Kanakakis and his co-founders, Vitalii Demianets and Sam Saatchi. Kanakakis and Demianets got to work to address a key gap in the industry: Know Your Customer (KYC) data sharing. As the first distributed KYC... View Details
      Keywords: Organizational Change and Adaptation; Organizational Design; Organizational Culture; Organizational Structure; Organizations; Leadership; Leadership Development; Leadership Style; Collaborative Innovation and Invention; Digital Transformation; Digital Strategy; Digital Platforms; Technology Adoption; Technological Innovation; Corporate Entrepreneurship; Business and Government Relations; Business Startups; Financial Services Industry; Technology Industry; Banking Industry; Information Technology Industry; Sweden; Europe; Singapore; London; United Arab Emirates; Dubai; Middle East; Athens; Greece
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      Hill, Linda A., and Lydia Begag. "Astyanax Kanakakis at norbloc: A Founder's Experience with the DIFC Fintech Hive." Harvard Business School Supplement 423-066, February 2023.
      • 2023
      • Working Paper

      Networking Frictions: Evidence from Entrepreneurial Networking Events in Lomé

      By: Stefan Dimitiadis and Rembrand Koning
      Spatial proximity between firms plays a crucial role in entrepreneurship by creating knowledge spillovers, enabling resource sharing, and sparking productivity gains. Building on these insights, research has explored whether institutions and organizations can engineer... View Details
      Keywords: Local Range; Knowledge Sharing; Performance Productivity; Togo
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      Dimitiadis, Stefan, and Rembrand Koning. "Networking Frictions: Evidence from Entrepreneurial Networking Events in Lomé." Working Paper, February 2023.
      • January 2023 (Revised June 2023)
      • Case

      Replika: Embodying AI

      By: Shikhar Ghosh, Shweta Bagai and Marilyn Morgan Westner
      Replika was a virtual AI companion that provided a way for people to process their emotions, build connections in a safe environment, and get through periods of loneliness. The chatbot fulfilled a user's need for a friend, romantic partner, or purely an emotional... View Details
      Keywords: AI; AI and Machine Learning; Applications and Software; Human Needs; California
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      Ghosh, Shikhar, Shweta Bagai, and Marilyn Morgan Westner. "Replika: Embodying AI." Harvard Business School Case 823-090, January 2023. (Revised June 2023.)
      • January–February 2023
      • Article

      Rethink Your Employee Value Proposition: Offer Your People More Than Just Flexibility

      By: Mark Mortensen and Amy C. Edmondson
      A lot of leaders believe that the formula for attracting and keeping talent is simple: Just ask people what they want and give it to them. The problem is, that approach tends to address only the material aspects of jobs that are top of employees’ minds at the moment,... View Details
      Keywords: Compensation and Benefits; Retention; Recruitment; Mission and Purpose; Organizational Culture; Satisfaction
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      Mortensen, Mark, and Amy C. Edmondson. "Rethink Your Employee Value Proposition: Offer Your People More Than Just Flexibility." Harvard Business Review 101, no. 1 (January–February 2023): 45–49.
      • December 2022
      • Technical Note

      Risks and Opportunities from the Transition to a Low Carbon Economy: A Business Analysis Framework

      By: George Serafeim
      The transition to a low carbon economy introduces many risks and opportunities for businesses. Risks emerge from regulatory actions, such as carbon taxes and cap and trade systems, technological innovation that develop alternatives for customers making existing... View Details
      Keywords: Risk Assessment; Opportunities; Environmental Sustainability; Carbon Footprint; Risk Management; Competitive Dynamics; Business Analysis; Climate Change; Accounting; Finance; Valuation; Business and Shareholder Relations; Technological Innovation; Transition; Product Positioning; Renewable Energy; Analysis
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      Serafeim, George. "Risks and Opportunities from the Transition to a Low Carbon Economy: A Business Analysis Framework." Harvard Business School Technical Note 123-014, December 2022.
      • December 2022
      • Article

      Social Skills Improve Business Performance: Evidence from a Randomized Control Trial with Entrepreneurs in Togo

      By: Stefan Dimitriadis and Rembrand Koning
      Recent field experiments demonstrate that advice, mentorship, and feedback from randomly assigned peers improve entrepreneurial performance. These results raise a natural question: what is preventing entrepreneurs and managers from forming these peer connections... View Details
      Keywords: Social Skills; Business Performance; Entrepreneurs; Peer Relationships; Field Experiment; Entrepreneurship; Performance; Relationships; Interpersonal Communication; Togo
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      Dimitriadis, Stefan, and Rembrand Koning. "Social Skills Improve Business Performance: Evidence from a Randomized Control Trial with Entrepreneurs in Togo." Management Science 68, no. 12 (December 2022): 8635–8657.
      • December 1, 2022
      • Article

      Which Connections Really Help You Find a Job?

      By: Iavor I. Bojinov, Karthik Rajkumar, Guillaume Saint-Jacques, Erik Brynjolfsson and Sinan Aral
      Experiments involving 20 million people generated a surprising finding: moderately weak connects — and not strong connections — are the most useful in finding a new job. To be more specific, the ties that are most helpful for finding new jobs tend to be moderately... View Details
      Keywords: Networks; Job Search
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      Bojinov, Iavor I., Karthik Rajkumar, Guillaume Saint-Jacques, Erik Brynjolfsson, and Sinan Aral. "Which Connections Really Help You Find a Job?" Harvard Business Review (website) (December 1, 2022).
      • October 2022
      • Case

      Beam Dental (A)

      By: Rembrand Koning and Alicia Dadlani
      In May 2014, Alex Frommeyer, cofounder and CEO of Kentucky-based Beam Dental, a seed-stage startup that developed connected toothbrushes that tracked brushing habits, needed to decide which strategy to pitch to a venture capital firm. The first pitch deck played to the... View Details
      Keywords: Business Startups; Business Strategy; Entrepreneurship; Financing and Loans; Presentations; Product Development; Insurance Industry; United States; Kentucky; Ohio
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      Koning, Rembrand, and Alicia Dadlani. "Beam Dental (A)." Harvard Business School Case 723-355, October 2022.
      • September 16, 2022
      • Article

      A Causal Test of the Strength of Weak Ties

      By: Karthik Rajkumar, Guillaume Saint-Jacques, Iavor I. Bojinov, Erik Brynjolfsson and Sinan Aral
      The authors analyzed data from multiple large-scale randomized experiments on LinkedIn’s People You May Know algorithm, which recommends new connections to LinkedIn members, to test the extent to which weak ties increased job mobility in the world’s largest... View Details
      Keywords: Job Mobility; Social Networks; Social Ties; Networks; Personal Development and Career
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      Rajkumar, Karthik, Guillaume Saint-Jacques, Iavor I. Bojinov, Erik Brynjolfsson, and Sinan Aral. "A Causal Test of the Strength of Weak Ties." Science 377, no. 6612 (September 16, 2022).
      • 2025
      • Working Paper

      Algorithmic Assortment Curation: An Empirical Study of Buybox in Online Marketplaces

      By: Santiago Gallino, Nil Karacaoglu and Antonio Moreno
      Most online sales worldwide take place in marketplaces that connect sellers and buyers. The presence of numerous third-party sellers leads to a proliferation of listings for each product, making it difficult for customers to choose between the available options. Online... View Details
      Keywords: Algorithms; E-commerce; Sales; Digital Marketing; Internet and the Web; Customer Satisfaction
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      Gallino, Santiago, Nil Karacaoglu, and Antonio Moreno. "Algorithmic Assortment Curation: An Empirical Study of Buybox in Online Marketplaces." Working Paper, 2025.
      • August 2022
      • Case

      Meaningful Gigs

      By: Brian Trelstad and Rachel Philbin
      In October 2020, just a year after founding their company Meaningful Gigs, founders Ronnie Kwesi Coleman and Stephanie Nachemja-Burton prepared for a vital investment meeting with Rethink Education. They had already reached $400,000 in annually recurring revenue (ARR)... View Details
      Keywords: Venture Capital; Growth and Development Strategy; Revenue; Education Industry; Technology Industry; Africa; United States
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      Trelstad, Brian, and Rachel Philbin. "Meaningful Gigs." Harvard Business School Case 323-006, August 2022.
      • July 2022
      • Case

      Yinglan Tan: Scaling a Venture Capital Firm in Southeast Asia

      By: Josh Lerner and Richard Zhu
      Yinglan Tan considered the future of his young Singapore-based venture capital firm. On the one hand, the intuition that was behind the initial creation of Insignia in 2017 had been proven correct. The venture capital market in Southeast Asia had grown rapidly, driven... View Details
      Keywords: E-commerce; Scalability; Globalized Markets and Industries; Venture Capital; International Finance; Growth and Development; Expansion
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      Lerner, Josh, and Richard Zhu. "Yinglan Tan: Scaling a Venture Capital Firm in Southeast Asia." Harvard Business School Case 823-025, July 2022.
      • 2024
      • Working Paper

      Hidden Alpha

      By: Manuel Amman, Alexander Cochardt, Lauren Cohen and Stephan Heller
      This paper documents the central role of hidden connections between fund managers and firm officers in financial markets, drawing on an extensive dataset of over 100 thousand manually identified Facebook profiles and their 35 million Facebook friends. Our findings... View Details
      Keywords: Returns; Investment Return; Networks
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      Amman, Manuel, Alexander Cochardt, Lauren Cohen, and Stephan Heller. "Hidden Alpha." Working Paper, 2024. (Winner of the 2022 Chicago Quantitative Alliance Academic Paper Competition. First Prize presented by Chicago Quantitative Alliance. Winner of the Institute for Quantitative Investment Research (INQUIRE) Grant, 2023.)
      • July 2022
      • Article

      Mental Health During the First Year of the COVID-19 Pandemic: A Review and Recommendations for Moving Forward

      By: Lara Aknin, Jan-Emmanuel De Neve, Elizabeth Dunn, Daisy Fancourt, Elkhonon Goldberg, John Helliwell, Sarah P. Jones, Elie Karam, Richard Layard, Sonja Lyubomirsky, Andrew Rzepa, Shekhar Saxena, Emily Thornton, Tyler VanderWeele, Ashley V. Whillans, Jamil Zaki, Ozge Karadag Caman and Yanis Ben Amour
      COVID-19 has infected millions of people and upended the lives of most humans on the planet. Researchers from across the psychological sciences have sought to document and investigate the impact of COVID-19 in myriad ways, causing an explosion of research that is broad... View Details
      Keywords: COVID-19; Mental Health; Psychological Distress; Subjective Well-being; Lonelines; Social Connection; Self-harm; Suicide; Health Pandemics; Well-being
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      Aknin, Lara, Jan-Emmanuel De Neve, Elizabeth Dunn, Daisy Fancourt, Elkhonon Goldberg, John Helliwell, Sarah P. Jones, Elie Karam, Richard Layard, Sonja Lyubomirsky, Andrew Rzepa, Shekhar Saxena, Emily Thornton, Tyler VanderWeele, Ashley V. Whillans, Jamil Zaki, Ozge Karadag Caman, and Yanis Ben Amour. "Mental Health During the First Year of the COVID-19 Pandemic: A Review and Recommendations for Moving Forward." Perspectives on Psychological Science 17, no. 4 (July 2022): 915–936.
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