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      • Faculty Publications  (563)

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      • June 2022
      • Article

      The Welfare Effects of Peer Entry in the Accommodation Market: The Case of Airbnb and the Accommodation Industry

      By: Chiara Farronato and Andrey Fradkin
      We study the effects of enabling peer supply through Airbnb in the accommodation industry. We present a model of competition between flexible and dedicated sellers—peer hosts and hotels—who provide differentiated products. We estimate this model using data from major...  View Details
      Keywords: Peer To Peer; Airbnb; Digital Platforms; Market Entry and Exit; Competition; Accommodations Industry
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      Farronato, Chiara, and Andrey Fradkin. "The Welfare Effects of Peer Entry in the Accommodation Market: The Case of Airbnb and the Accommodation Industry." American Economic Review 112, no. 6 (June 2022): 1782–1817.
      • May 2022
      • Case

      LOOP: Driving Change in Auto Insurance Pricing

      By: Elie Ofek and Alicia Dadlani
      John Henry and Carey Anne Nadeau, co-founders and co-CEOs of LOOP, an insurtech startup based in Austin, Texas, were on a mission to modernize the archaic $250 billion automobile insurance market. They sought to create equitably priced insurance by eliminating pricing...  View Details
      Keywords: AI and Machine Learning; Technological Innovation; Equality and Inequality; Prejudice and Bias; Insurance Industry; Financial Services Industry
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      Ofek, Elie, and Alicia Dadlani. "LOOP: Driving Change in Auto Insurance Pricing." Harvard Business School Case 522-073, May 2022.
      • 2021
      • Working Paper

      Public Disclosure of Private Meetings: Does Observing Peers' Information Acquisition Affect Analysts' Attention Allocation?

      By: Yi Ru, Ronghuo Zheng and Yuan Zou
      We investigate the impact of observing peers’ information acquisition on financial analysts’ attention allocation. Using the timely disclosure mandate by the Shenzhen Stock Exchange as a setting, we find that, when analysts can observe that a firm is visited by other...  View Details
      Keywords: Attention Allocation; Informational Efficiency; Corporate Site Visits; Externalities; Information; Acquisition; Corporate Disclosure; Outcome or Result
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      Ru, Yi, Ronghuo Zheng, and Yuan Zou. "Public Disclosure of Private Meetings: Does Observing Peers' Information Acquisition Affect Analysts' Attention Allocation?" Harvard Business School Working Paper, No. 22-064, July 2021.
      • March 2022
      • Teaching Note

      Camera IQ and the Metaverse: Building Augmented Reality Brand Experiences

      By: Jill Avery
      Camera IQ, a camera marketing software company that empowered brands to create and launch augmented reality experiences (AREs) across social platforms, had just raised an additional $5 million to fund further product development and expand its marketing and sales...  View Details
      Keywords: Brand Management; Virtual Reality; Augmented Reality; B2B; E-commerce; Technology Platform; Marketing; Marketing Communications; Marketing Strategy; Brands and Branding; Digital Marketing; Internet and the Web; Growth Management; Customer Relationship Management; Customer Value and Value Chain; Social Media; Applications and Software; Advertising Industry; United States
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      Avery, Jill. "Camera IQ and the Metaverse: Building Augmented Reality Brand Experiences." Harvard Business School Teaching Note 522-065, March 2022.
      • 2022
      • Working Paper

      Can Evidence-Based Information Shift Preferences Towards Trade Policy?

      By: Laura Alfaro, Maggie X. Chen and Davin Chor
      We investigate the role of evidence-based information in shaping individuals' preferences for trade policies through a series of survey experiments that contain randomized information treatments. Each information treatment provides a concise statement of...  View Details
      Keywords: Evidence; Preference; Trade Policy; Information; Trade; Policy; Attitudes
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      Alfaro, Laura, Maggie X. Chen, and Davin Chor. "Can Evidence-Based Information Shift Preferences Towards Trade Policy?" Harvard Business School Working Paper, No. 22-062, March 2022.
      • March 2022
      • Case

      MTN: Unlocking Value While Driving Socioeconomic Progress

      By: Benjamin C. Esty, Pippa Tubman Armerding and Dilyana Karadzhova Botha
      On March 10, 2021, Ralph Mupita the new CEO of MTN Group, Africa largest telecommunications company, presented the group’s 2020 annual results and unveiled a new strategy to “drive growth and unlock value.” Despite MTN’s leadership in most of its markets, the company’s...  View Details
      Keywords: Decision Making; Goals and Objectives; Valuation; Emerging Markets; Business Strategy; Financial Management; Information Technology; Corporate Finance; Telecommunications Industry; Africa; South Africa; Ghana; Nigeria
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      Esty, Benjamin C., Pippa Tubman Armerding, and Dilyana Karadzhova Botha. "MTN: Unlocking Value While Driving Socioeconomic Progress." Harvard Business School Case 722-371, March 2022.
      • 2022
      • Working Paper

      Stock Market Stimulus

      By: Robin Greenwood, Toomas Laarits and Jeffrey Wurgler
      The stock market crash in March 2020 was followed by a historic rebound, particularly among stocks favored by retail investors. We study the effects of the arrival of the three rounds of “stimulus checks” to U.S. taxpayers and the single round of direct payments to...  View Details
      Keywords: Stock Market; COVID-19 Pandemic; Fiscal Stimulus; Stimulus Payments; Impact; Stocks; System Shocks; Price; Spending; United States; Hong Kong; China
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      Greenwood, Robin, Toomas Laarits, and Jeffrey Wurgler. "Stock Market Stimulus." NBER Working Paper Series, No. 29827, March 2022.
      • March 2022
      • Teaching Note

      Farfetch: Digital Transformation for Luxury Brands

      By: Jill Avery and Sunil Gupta
      Teaching Note for HBS Case No. 522-051. Farfetch, a global luxury technology platform and digital marketplace had been surfing the wave of digital transformation in the luxury fashion industry since 2008. While the company’s stock price and market valuation had...  View Details
      Keywords: Brand Management; Retailing; Two Sided Markets; SaaS; Digital Marketing; Online Marketing; Marketing; Marketing Channels; Brands and Branding; Luxury; Digital Transformation; E-commerce; Retail Industry; Fashion Industry; London; United Kingdom; Portugal
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      Avery, Jill, and Sunil Gupta. "Farfetch: Digital Transformation for Luxury Brands." Harvard Business School Teaching Note 522-061, March 2022.
      • 2022
      • Article

      Which Corporate ESG News Does the Market React To?

      By: George Serafeim and Aaron Yoon
      Using a dataset that classifies firm-level ESG news as positive and negative, we examine how stock prices react to different types of ESG news. We analyze 111,020 firm-day observations for 3,126 companies and find that prices react only to issues identified as...  View Details
      Keywords: ESG; ESG (Environmental, Social, Governance) Performance; ESG Ratings; Social Capital; Environment; Sustainability; CSR; Stock Price; Stock Market Expectations; Materiality; Market Reaction; Environmental Sustainability; Governance; Social Issues; Performance; News
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      Serafeim, George, and Aaron Yoon. "Which Corporate ESG News Does the Market React To?" Financial Analysts Journal 78, no. 1 (2022): 59–78.
      • 2022
      • Working Paper

      Excess Reconstitution-Day Volume

      By: Alex Chinco and Marco Sammon
      FTSE/Russell reconstitutes its Russell 1000 and 2000 indexes on the last Friday of June each year, and it announces which stocks will switch indexes roughly two weeks in advance. Exchange-traded funds (ETFs) must do all of their rebalancing on Russell’s reconstitution...  View Details
      Keywords: Indexing; Passive Investing; Exchange-traded Funds (ETFs); Russell Reconstitution Day; Trading Volume; Information-based Asset Pricing; Investment; Investment Funds; Asset Pricing
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      Chinco, Alex, and Marco Sammon. "Excess Reconstitution-Day Volume." Working Paper, February 2022.
      • 2022
      • Working Paper

      Passive Ownership and Price Informativeness

      By: Marco Sammon
      I propose three new empirical measures of price informativeness motivated by a theoretical model. I find average price informativeness declined over the past 30 years and passive ownership is negatively correlated with price informativeness. To establish causality, I...  View Details
      Keywords: Passive Ownership; ETFs; Market Efficiency; Ownership; Price; Theory; Measurement and Metrics
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      Sammon, Marco. "Passive Ownership and Price Informativeness." Working Paper, February 2022.
      • January 2022 (Revised February 2022)
      • Case

      Introducing EVA at ISS: A Better Way to Evaluate CEO Performance and Compensation?

      By: Jonas Heese, Charles C.Y. Wang and James Weber
      In early 2019, Anthony Campagna, the global director of fundamental research at ISS EVA, a unit of the proxy advisory firm Institutional Shareholder Services (ISS), was preparing to release ISS's analyses of public company performance and CEO compensation ahead of Say...  View Details
      Keywords: Jobs and Positions; Compensation and Benefits; Performance; Performance Productivity; Measurement and Metrics; Analytics and Data Science; Value; Business or Company Management; Performance Evaluation; Business and Shareholder Relations
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      Heese, Jonas, Charles C.Y. Wang, and James Weber. "Introducing EVA at ISS: A Better Way to Evaluate CEO Performance and Compensation?" Harvard Business School Case 122-061, January 2022. (Revised February 2022.)
      • January 2022
      • Article

      Artificial Intelligence, Data-Driven Learning, and the Decentralized Structure of Platform Ecosystems

      By: David R. Clough and Andy Wu
      Gregory, Henfridsson, Kaganer, and Kyriakou (2020) highlight the important role of data and AI as strategic resources that platforms may use to enhance user value. However, their article overlooks a significant conceptual distinction: the installed base of...  View Details
      Keywords: Artificial Intelligence; Data Strategy; Ecosystem; Value Capture; Digital Platforms; Analytics and Data Science; Strategy; Learning; Value Creation; AI and Machine Learning; Information Technology Industry; Information Technology Industry; Information Technology Industry; Information Technology Industry
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      Clough, David R., and Andy Wu. "Artificial Intelligence, Data-Driven Learning, and the Decentralized Structure of Platform Ecosystems." Academy of Management Review 47, no. 1 (January 2022): 184–189.
      • December 2021 (Revised February 2022)
      • Case

      Bed Bath & Beyond: The New Strategy to Drive Shareholder Value

      By: Benjamin C. Esty and Daniel W. Fisher
      At one time, Bed Bath & Beyond was one of the most successful specialty retailers in the United States—its growth and profit margins far exceeded both peer retailers in the home goods market as well as many other discount retailers. But in 2014, its stock price peaked,...  View Details
      Keywords: Competitive Strategy; Competitive Advantage; Value Creation; Diversification; Corporate Governance; Leading Change; Performance Evaluation; Valuation; Investment Activism; Retail Industry; Consumer Products Industry; United States
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      Esty, Benjamin C., and Daniel W. Fisher. "Bed Bath & Beyond: The New Strategy to Drive Shareholder Value." Harvard Business School Case 722-408, December 2021. (Revised February 2022.)
      • Winter 2021
      • Article

      Mobile Internet Usage and Usage-based Pricing

      By: Jeffrey Prince and Shane Greenstein
      Using data on mobile Internet usage of thousands of individuals, we provide some of the first analyses linking mobile usage to key demographics such as income. We find a reverse-U relationship between mobile Internet usage and income—notably different than the...  View Details
      Keywords: Mobile Internet Usage; Pricing Strategy; Internet and the Web; Mobile and Wireless Technology; Demographics; Income; Price; Strategy
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      Prince, Jeffrey, and Shane Greenstein. "Mobile Internet Usage and Usage-based Pricing." Journal of Economics & Management Strategy 30, no. 4 (Winter 2021): 760–783.
      • December 2021
      • Article

      Trade Policy Uncertainty and Stock Returns

      By: Marcelo Bianconi, Federico Esposito and Marco Sammon
      A recent literature has documented large real effects of trade policy uncertainty (TPU) on trade, employment, and investment, but there is little evidence that investors are compensated for bearing such risk. To quantify the risk premium associated with TPU, we exploit...  View Details
      Keywords: Trade Policy; Uncertainty; Stock Returns; Risk Premium; Tariff Rates; Portfolio Analysis; Trade; Policy; Risk and Uncertainty; Stocks; Investment Return
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      Bianconi, Marcelo, Federico Esposito, and Marco Sammon. "Trade Policy Uncertainty and Stock Returns." Art. 102492. Journal of International Money and Finance 119 (December 2021).
      • November 2021 (Revised March 2022)
      • Case

      Farfetch: Digital Transformation for Luxury Brands

      By: Sunil Gupta, Jill Avery, Elena Corsi and Federica Gabrieli
      Farfetch, a global luxury technology platform and digital marketplace had been surfing the wave of digital transformation in the luxury fashion industry since 2008. While the company’s stock price and market valuation had fluctuated since its IPO in 2018, it had...  View Details
      Keywords: Digital Marketing; Marketplaces; Retailing; Internet Marketing; E-Commerce Strategy; Marketing; Marketing Strategy; Marketing Channels; Brands and Branding; Luxury; Growth and Development Strategy; Digital Transformation; E-commerce; Apparel and Accessories Industry; Beauty and Cosmetics Industry; Fashion Industry; Retail Industry; Web Services Industry; Technology Industry; United Kingdom; Europe; Portugal; China
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      Gupta, Sunil, Jill Avery, Elena Corsi, and Federica Gabrieli. "Farfetch: Digital Transformation for Luxury Brands." Harvard Business School Case 522-051, November 2021. (Revised March 2022.)
      • November 2021 (Revised December 2021)
      • Supplement

      PittaRosso (B): Human and Machine Learning

      By: Ayelet Israeli
      This case supplements the "PittaRosso: Artificial Intelligence-Driven Pricing and Promotion" case, and provides major highlights on what happened at the company since the first case.  View Details
      Keywords: Artificial Intelligence; Pricing; Pricing Algorithm; Pricing Decisions; Pricing Strategy; Pricing Structure; Promotion; Promotions; Online Marketing; Data-driven Decision-making; Data-driven Management; Retail; Retail Analytics; Price; Advertising Campaigns; Analytics and Data Science; Analysis; Digital Marketing; Budgets and Budgeting; Marketing Strategy; Marketing; Transformation; Decision Making; AI and Machine Learning; Retail Industry; Italy
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      Israeli, Ayelet. "PittaRosso (B): Human and Machine Learning." Harvard Business School Supplement 522-047, November 2021. (Revised December 2021.)
      • November 2021
      • Article

      Ratings, Reviews, and the Marketing of New Products

      By: Itay P. Fainmesser, Dominique Olié Lauga and Elie Ofek
      We study how user-generated content (UGC) about new products impacts a firm's advertising and pricing decisions and the effect on profits and market dynamics. We construct a two-period model where consumers value quality and are heterogeneous in their taste for the new...  View Details
      Keywords: Online Reviews; Product Ratings; Social Networks; Word Of Mouth; Pricing; User-generated Content; Advertising; Product Marketing; Price; Consumer Behavior; Product Positioning; Social Media
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      Fainmesser, Itay P., Dominique Olié Lauga, and Elie Ofek. "Ratings, Reviews, and the Marketing of New Products." Management Science 67, no. 11 (November 2021): 7023–7045.
      • 2021
      • Working Paper

      The Value of Professional Ties in B2B Markets

      By: Navid Mojir and Sriya Anbil
      We study how a particular form of social ties (i.e., professional ties proxied by past employment) affect price and profitability in business-to-business (B2B) markets. While most of the work on social ties focuses on information diffusion in business-to-consumer...  View Details
      Keywords: Professional Ties; Social Ties; Business-to-business Marketing; B2B Marketing; Repo; Individual Connections; B2B Pricing; Pricing; Decision-making In Financial Markets; Marketing; Relationships; Price; Financial Markets; Decision Making
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      Mojir, Navid, and Sriya Anbil. "The Value of Professional Ties in B2B Markets." Harvard Business School Working Paper, No. 22-037, November 2021.
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