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      • September 2023
      • Supplement

      Super Quantum: Using Artificial Intelligence to Transform Asset Management (B)

      By: Feng Zhu and Kerry Herman
      Dr. Zhang, CEO of Super Quantum, an AI-driven hedge fund, is considering an investor’s request to withdraw their funds as the markets experience volatility. Should he pull the investor’s funds? View Details
      Keywords: Hedge Fund; Volatility; Decision Choices and Conditions; Asset Management; Investment Funds; Financial Services Industry
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      Zhu, Feng, and Kerry Herman. "Super Quantum: Using Artificial Intelligence to Transform Asset Management (B)." Harvard Business School Supplement 624-028, September 2023.
      • September 2023
      • Case

      Super Quantum: Using Artificial Intelligence to Transform Asset Management (A)

      By: Feng Zhu and Kerry Herman
      Dr. Zhang, CEO of Super Quantum, an AI-driven hedge fund, is considering an investor’s request to withdraw their funds as the markets experience volatility. Should he pull the investor’s funds? View Details
      Keywords: AI and Machine Learning; Volatility; Financial Markets; Investment Funds; Decision Choices and Conditions; Financial Services Industry
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      Zhu, Feng, and Kerry Herman. "Super Quantum: Using Artificial Intelligence to Transform Asset Management (A)." Harvard Business School Case 624-027, September 2023.
      • August 2023
      • Case

      Kariyer.net: Recruiting AI

      By: Shunyuan Zhang, Fares Khrais and Namrata Arora
      In 2017, Fatih Uysal (AMP 2021) became CEO of Kariyer.net. By then, the business was already the industry leading online job board in Turkey. However, faced with stalling growth, a turbulent macroenvironment, and growing competition from international players, Uysal... View Details
      Keywords: Online Technology; Marketing; Websites; Artificial Intelligence; Innovation; Two-sided Platforms; Internet and the Web; Product Launch; Product Positioning; Job Search; Employment; Transformation; Volatility; Innovation and Invention; Disruptive Innovation; Management Practices and Processes; Business Growth and Maturation; Competitive Strategy; Business Startups; Talent and Talent Management; Cost vs Benefits; Macroeconomics; Corporate Entrepreneurship; Emerging Markets; Digital Platforms; Employment Industry; Information Technology Industry; Technology Industry; Middle East; Turkey
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      Zhang, Shunyuan, Fares Khrais, and Namrata Arora. "Kariyer.net: Recruiting AI." Harvard Business School Case 524-014, August 2023.
      • June 2023
      • Case

      Block: Creating an Ecosystem of Ecosystems

      By: Lauren Cohen, Richard Ryffel, Grace Headinger and Ruoshi Qi
      At Investor Day 2022, Block announced a new vision for its businesses: creating an ecosystem of ecosystems. Outside the norm for many public growth companies, Block had recently acquired a variety of new business streams in the creator economy and Bitcoin despite a... View Details
      Keywords: Business Growth; Fintech; Company Management; Growth Strategy; Innovation And Strategy; Acquisition; Business Growth and Maturation; Business Model; Change; Finance; Growth Management; Growth and Development Strategy; Innovation Strategy; Technological Innovation; Communication Strategy; Corporate Strategy; Business Strategy; Financial Services Industry; Technology Industry; United States; California; San Francisco
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      Cohen, Lauren, Richard Ryffel, Grace Headinger, and Ruoshi Qi. "Block: Creating an Ecosystem of Ecosystems." Harvard Business School Case 223-055, June 2023.
      • April 12, 2023
      • Article

      Using AI to Adjust Your Marketing and Sales in a Volatile World

      By: Das Narayandas and Arijit Sengupta
      Why are some firms better and faster than others at adapting their use of customer data to respond to changing or uncertain marketing conditions? A common thread across faster-acting firms is the use of AI models to predict outcomes at various stages of the customer... View Details
      Keywords: Forecasting and Prediction; AI and Machine Learning; Consumer Behavior; Technology Adoption; Competitive Advantage
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      Narayandas, Das, and Arijit Sengupta. "Using AI to Adjust Your Marketing and Sales in a Volatile World." Harvard Business Review Digital Articles (April 12, 2023).
      • April 2023
      • Article

      Are Intermediary Constraints Priced?

      By: Wenxin Du, Benjamin Hebert and Amy Wang Huber
      Violations of no-arbitrage conditions measure the shadow cost of intermediary constraints. Intermediary asset pricing and intertemporal hedging together imply that the risk of these constraints tightening is priced. We describe a “forward CIP trading strategy” that... View Details
      Keywords: Asset Pricing; Investment Return; Risk and Uncertainty; International Finance
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      Du, Wenxin, Benjamin Hebert, and Amy Wang Huber. "Are Intermediary Constraints Priced?" Review of Financial Studies 36, no. 4 (April 2023): 1464–1507.
      • 2022
      • Book

      Healthy Buildings: How Indoor Spaces Can Make You Sick—or Keep You Well

      By: Joseph G. Allen and John D. Macomber
      For too long we’ve designed buildings that haven’t focused on the people inside—their health, their ability to work effectively, and what that means for the bottom line. An authoritative introduction to a movement whose vital importance is now all too clear, Healthy... View Details
      Keywords: COVID-19; Buildings and Facilities; Health; Health Pandemics; Safety
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      Allen, Joseph G., and John D. Macomber. Healthy Buildings: How Indoor Spaces Can Make You Sick—or Keep You Well. Revised and updated edition, Cambridge, MA: Harvard University Press, 2022.
      • 2022
      • Working Paper

      Overreaction and Diagnostic Expectations in Macroeconomics

      By: Pedro Bordalo, Nicola Gennaioli and Andrei Shleifer
      We present the case for the centrality of overreaction in expectations for addressing important challenges in finance and macroeconomics. First, non-rational expectations by market participants can be measured and modeled in ways that address some of the key challenges... View Details
      Keywords: Overreaction; Rational Expectations; Macroeconomics; Market Participation; Social Psychology
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      Bordalo, Pedro, Nicola Gennaioli, and Andrei Shleifer. "Overreaction and Diagnostic Expectations in Macroeconomics." NBER Working Paper Series, No. 30356, August 2022.
      • July 2022 (Revised September 2022)
      • Case

      Birla Carbon Egypt: Building Soft Power in a Foreign Country

      By: Jeremy Friedman and Malini Sen
      Birla Carbon, a flagship business of the nearly $60-billion global conglomerate and India-headquartered Aditya Birla Group (ABG), is one of the world's top manufacturers and suppliers of high-quality carbon black. The largest among its 16 manufacturing plants is Birla... View Details
      Keywords: Acquisition; Family Business; Disruption; Transformation; Diversity; Trade; Energy; Values and Beliefs; Cross-Cultural and Cross-Border Issues; Global Strategy; Government and Politics; Private Ownership; Civil Society or Community; Risk and Uncertainty; Value Creation; Industrial Products Industry; Rubber Industry; Egypt; Africa; India; Asia; Atlanta; United States
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      Friedman, Jeremy, and Malini Sen. "Birla Carbon Egypt: Building Soft Power in a Foreign Country." Harvard Business School Case 723-003, July 2022. (Revised September 2022.)
      • 2022
      • Article

      Regulatory Treatment of Changes in Fair Value and the Composition of Banks' Investment Portfolios

      By: Michael Iselin, Jung Koo Kang and Joshua Madsen
      In their implementation of Basel III, U.S. bank regulators are again including changes in the fair value of available-for-sale (AFS) debt securities in Tier 1 capital, but only for the largest U.S. banks. This paper investigates a potential impact of expanding this... View Details
      Keywords: Fair Value Accounting; SFAS 115; Basel III; Governing Rules, Regulations, and Reforms; Banks and Banking; Debt Securities; Credit; Risk and Uncertainty; Investment Portfolio; Decision Making; Banking Industry; United States
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      Iselin, Michael, Jung Koo Kang, and Joshua Madsen. "Regulatory Treatment of Changes in Fair Value and the Composition of Banks' Investment Portfolios." Journal of Financial Reporting 7, no. 1 (2022): 123–143.
      • May 2022
      • Case

      From GOP to NFT: Anthony Scaramucci and the Launch of Flatter NFT

      By: Lauren Cohen, Richard Ryffel and Grace Headinger
      Anthony Scaramucci, Managing Director of SkyBridge Capital, considered whether he should officially greenlight the launch of SkyBridge’s own NFT platform — Flatter NFT. He had led the investment firm to push first into Bitcoin and then Ethereum to make SkyBridge a... View Details
      Keywords: Business Startup; Fintech; Technology; Cryptocurrency; Web3; Business Startups; Volatility; Decision Making; Entertainment; Entrepreneurship; Investment; Strategic Planning; Adoption; Competitive Advantage; Technology Adoption; Finance; Currency; Banking Industry; Financial Services Industry; Technology Industry; New York (city, NY)
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      Cohen, Lauren, Richard Ryffel, and Grace Headinger. "From GOP to NFT: Anthony Scaramucci and the Launch of Flatter NFT." Harvard Business School Case 222-085, May 2022.
      • March 2022 (Revised February 2024)
      • Case

      El Salvador: Launching Bitcoin as Legal Tender

      By: Laura Alfaro, Carla Larangeira and Ruth Costas
      In June 2021, Nayib Bukele, El Salvador’s president, surprised the world with the announcement that the country would adopt bitcoin as legal tender, becoming the first nation to do so. Bitcoin was mostly used for trading and had one of the most volatile track records... View Details
      Keywords: Bitcoin; Cryptocurrency; Currency; Financial Strategy; Economic Growth; Governance; Macroeconomics; Assets; Latin America; El Salvador
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      Alfaro, Laura, Carla Larangeira, and Ruth Costas. "El Salvador: Launching Bitcoin as Legal Tender." Harvard Business School Case 322-055, March 2022. (Revised February 2024.)
      • March 2022 (Revised March 2024)
      • Case

      Hometown Foods: Changing Price amid Inflation

      By: Julian De Freitas, Jeremy Yang and Das Narayandas
      During the early part of the 2021 Covid-19 pandemic, Hometown Foods, a large seller of flour-based products, thrived as consumers hoarded baked goods and took up baking to pass the time and find comfort. Then, amid growing shortages in commodities, a vaccine arrived,... View Details
      Keywords: COVID-19 Pandemic; Consumer Behavior; Supply Chain; Inflation and Deflation; Spending; Price Bubble; Price; Volatility; Food and Beverage Industry
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      De Freitas, Julian, Jeremy Yang, and Das Narayandas. "Hometown Foods: Changing Price amid Inflation." Harvard Business School Case 522-087, March 2022. (Revised March 2024.)
      • 2024
      • Working Paper

      What Triggers National Stock Market Jumps?

      By: Scott R. Baker, Nicholas Bloom, Steven J. Davis and Marco Sammon
      We examine newspapers the day after major stock-market jumps to evaluate the proximate cause, geographic source, and clarity of these events from 1900 in the US, 1930 in the UK and 1980 in 12 other countries. We find four main results. First, the United States plays an... View Details
      Keywords: Uncertainty; Policy Uncertainty; Stock Market; Financial Markets; Volatility; Risk and Uncertainty; Policy; Newspapers
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      Baker, Scott R., Nicholas Bloom, Steven J. Davis, and Marco Sammon. "What Triggers National Stock Market Jumps?" Working Paper, December 2024.
      • December 2021
      • Case

      Grace Capital

      By: Sara Fleiss, Robin Greenwood, Eren Kuzucu and Denise Han
      In March 2020, the global pandemic was delivering a dose of volatility to the U.S. economy. Catherine Faddis, the CIO of Grace Capital, a Boston-based long-only equity manager, analyzed movements in her portfolio while eyeing previously shelved opportunities to invest... View Details
      Keywords: Preferred Stock; COVID-19 Pandemic; Economy; Health Pandemics; Volatility; Entrepreneurship; Finance; Investment; Strategy; Decision Making; Investment Portfolio; Financial Services Industry; United States
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      Fleiss, Sara, Robin Greenwood, Eren Kuzucu, and Denise Han. "Grace Capital." Harvard Business School Case 222-052, December 2021.
      • 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).
      • 2025
      • Working Paper

      How Do Households Suppress the Price of Tail Risk?

      By: Laurent Calvet, Claire Célérier, Gordon Liao and Boris Vallée
      This paper investigates the effects of the issuance of retail products with non-linear payoffs on option prices. For a given underlying asset, when the outstanding volume of products embedding a short-put position increases, implied volatility at the corresponding... View Details
      Keywords: Security Design; Dividend; Options; Structured Products; Market Segmentation; Financial Instruments; Design; Volatility; Markets; Segmentation
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      Calvet, Laurent, Claire Célérier, Gordon Liao, and Boris Vallée. "How Do Households Suppress the Price of Tail Risk?" Working Paper, 2025.
      • March 2021
      • Supplement

      Snapp: Scaling Under Sanctions in Iran (B)

      By: Meg Rithmire and Gamze Yucaoglu
      The case opens in November 2020 as Eyad Alkassar and Mahmoud Fouz, co-founders of Iran’s first and leading ride-hailing platform, Snapp, eagerly await the results of the U.S. presidential elections.
      The case takes us through the challenging times between... View Details
      Keywords: Sanctions; Change Management; Disruption; Volatility; Decision Choices and Conditions; Cross-Cultural and Cross-Border Issues; Government and Politics; International Relations; National Security; Crisis Management; Risk Management; Health Pandemics; Transportation Industry; Middle East; Iran
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      Rithmire, Meg, and Gamze Yucaoglu. "Snapp: Scaling Under Sanctions in Iran (B)." Harvard Business School Supplement 721-036, March 2021.
      • Article

      CDS Trading and Nonrelationship Lending Dynamics

      By: Jung Koo Kang, Christopher Williams and Regina Wittenberg-Moerman
      We investigate how credit default swaps (CDSs) affect lenders’ incentives to initiate new lending relationships. We predict that CDSs reduce adverse selection that nonrelationship lead arrangers face when competing for loans. Consistently, we find that a loan is... View Details
      Keywords: Credit Default Swaps; CDS Market; Non-relationship Lending; Debt Contracts; Adverse Selection; Lending Monitoring; Cross-selling
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      Kang, Jung Koo, Christopher Williams, and Regina Wittenberg-Moerman. "CDS Trading and Nonrelationship Lending Dynamics." Review of Accounting Studies 26, no. 1 (March 2021): 258–292.
      • January 2021 (Revised July 2022)
      • Case

      Snapp: Scaling Under Sanctions in Iran (A)

      By: Meg Rithmire and Gamze Yucaoglu
      The case opens in November 2019 as Eyad Alkassar and Mahmoud Fouz, co-founders of Iran’s first and leading ride-hailing platform, Snapp, find out about Apple’s and Google’s decisions to remove all Iranian apps from their respective application stores.
      The case... View Details
      Keywords: Sanctions; Change Management; Disruption; Volatility; Decision Choices and Conditions; Cross-Cultural and Cross-Border Issues; Government and Politics; International Relations; National Security; Risk Management; Crisis Management; Transportation Industry; Iran; Middle East
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      Rithmire, Meg, and Gamze Yucaoglu. "Snapp: Scaling Under Sanctions in Iran (A)." Harvard Business School Case 721-020, January 2021. (Revised July 2022.)
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