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    • Faculty Publications  (5)

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    • All HBS Web  (609)
      • Faculty Publications  (5)

      Big Line Or Big Clique Conjecture Remove Big Line Or Big Clique Conjecture →

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      • August 2019 (Revised March 2022)
      • Case

      Lemonade: Disrupting Insurance with Instant Everything, Killer Prices, and a Big Heart

      By: Elie Ofek and Danielle Golan
      Launching its first products in the fall of 2016 in New York, insurtech startup Lemonade was on a mission to disrupt the insurance market by using AI and behavioral economics principles. The company offered renters, homeowners, and condo insurance and mainly targeted...  View Details
      Keywords: AI; Business Startups; Insurance; Technological Innovation; Business Model; Disruption; Brands and Branding; Growth and Development Strategy; Global Strategy; Decision Making; Insurance Industry; Technology Industry
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      Ofek, Elie, and Danielle Golan. "Lemonade: Disrupting Insurance with Instant Everything, Killer Prices, and a Big Heart." Harvard Business School Case 520-020, August 2019. (Revised March 2022.)
      • November 2016 (Revised September 2018)
      • Case

      Elon Musk's Big Bets

      By: David B. Yoffie, Eric Baldwin and Brandon Kaufmann
      Between late 2014 and late 2016, Tesla CEO Elon Musk undertook several major, and risky, initiatives that would dramatically expand the scale and scope of Tesla’s business. In late 2014, Tesla began construction on a $5 billion “gigafactory” that would manufacture...  View Details
      Keywords: Electric Vehicles; Batteries; Solar Power; Strategy; Execution; Technology; Space Flight; Tesla; SolarCity; SpaceX; Elon Musk; Information Technology; Risk and Uncertainty; Expansion; Renewable Energy; Investment; Manufacturing Industry; Green Technology Industry; Auto Industry; Aerospace Industry; Battery Industry
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      Yoffie, David B., Eric Baldwin, and Brandon Kaufmann. "Elon Musk's Big Bets." Harvard Business School Case 717-431, November 2016. (Revised September 2018.)
      • Article

      Every Large Point Set Contains Many Collinear Points or an Empty Pentagon

      By: Zachary Abel, Brad Ballinger, Prosenjit Bose, Sébastien Collette, Vida Dujmović, Ferran Hurtado, Scott Duke Kominers, Stefan Langerman, Attila Pór and David Wood
      We prove the following generalised empty pentagon theorem for every integer ℓ ≥ 2, every sufficiently large set of points in the plane contains ℓ collinear points or an empty pentagon. As an application, we settle the next open case of the “big line or big clique”...  View Details
      Keywords: Erdős-Szekeres Theorem; Happy End Problem; Big Line Or Big Clique Conjecture; Empty Quadrilateral; Empty Pentagon; Empty Hexagon
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      Abel, Zachary, Brad Ballinger, Prosenjit Bose, Sébastien Collette, Vida Dujmović, Ferran Hurtado, Scott Duke Kominers, Stefan Langerman, Attila Pór, and David Wood. "Every Large Point Set Contains Many Collinear Points or an Empty Pentagon." Graphs and Combinatorics 27, no. 1 (January 2011): 47–60.
      • July – August 2010
      • Column

      Powerlessness Corrupts

      By: Rosabeth M. Kanter
      Powerlessness damages organizations--especially in the middle ranks, says HBR columnist Rosabeth Moss Kanter. Hemmed in by rules and treated as unimportant, people get even with management by overcontrolling their own turf. Kanter urges leaders to give employees...  View Details
      Keywords: Employee Relationship Management; Opportunities; Behavior; Motivation and Incentives; Power and Influence
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      Kanter, Rosabeth M. "Powerlessness Corrupts." Harvard Business Review 88, nos. 7-8 (July–August 2010).
      • Research Summary

      Overview

      By: Kris Johnson Ferreira
      Professor Ferreira's research primarily focuses on how retailers can use algorithms to make better revenue management decisions, including pricing, product display, and assortment planning. In the retail industry, anticipating consumer demand is arguably one of the...  View Details
      Keywords: E-commerce; Analytics; Revenue Management; Pricing; Assortment Planning; Field Experiments; Operations; Supply Chain; Supply Chain Management; Retail Industry
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