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- 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...
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Keywords:
Passive Ownership;
ETFs;
Market Efficiency;
Ownership;
Price;
Theory;
Measurement and Metrics
Sammon, Marco. "Passive Ownership and Price Informativeness." Working Paper, February 2022.
- 2021
- Working Paper
Limits to Bank Deposit Market Power
By: Juliane Begenau and Erik Stafford
Claims about the market power of bank deposits in the banking literature are numerous and far reaching. Recently, a causal narrative has emerged in the banking literature: market power in bank deposits, measured as imperfect pass-through of short-term market rates on...
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Keywords:
Bank Deposits;
Market Power;
Net Interest Margin (NIM);
Banks and Banking;
Interest Rates;
Risk and Uncertainty
Begenau, Juliane, and Erik Stafford. "Limits to Bank Deposit Market Power." Harvard Business School Working Paper, No. 22-039, November 2021.
- 2021
- Working Paper
What Drives Variation in Investor Portfolios? Evidence from Retirement Plans
We study empirical patterns in investment behavior using a comprehensive data set of defined contribution plans. Using plan-level portfolio allocation data for the near universe of 401(k) plans over the period 2009–2019, we document substantial differences in...
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Keywords:
Stock Market Expectations;
Demand Estimation;
Retirement Planning;
Defined Contribution Retirement Plan;
401 (K);
Finance;
Investment Portfolio;
Investment;
Retirement;
Behavioral Finance;
Financial Services Industry;
United States
Egan, Mark, Alexander MacKay, and Hanbin Yang. "What Drives Variation in Investor Portfolios? Evidence from Retirement Plans." Harvard Business School Working Paper, No. 22-044, December 2021. (Direct download. NBER Working Paper Series, No. 29604, December 2021)
- October 18, 2021
- Article
To Regulate Network-Based Platforms, Look at Their Data
By: Chiara Farronato and Daniel Björkegren
Historically, antitrust authorities have taken a laissez-faire approach under the assumption that it is better to err on the side of not intervening when there is uncertainty. This has allowed companies like Google and Facebook to go on a shopping spree to acquire...
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Keywords:
Antitrust Issues And Policies;
Risk and Uncertainty;
Digital Platforms;
Competitive Advantage;
Governing Rules, Regulations, and Reforms;
Innovation and Invention;
Information Technology Industry
Farronato, Chiara, and Daniel Björkegren. "To Regulate Network-Based Platforms, Look at Their Data." Harvard Business Review Digital Articles (October 18, 2021).
- June 2021
- Article
Deals in the Time of Pandemic
By: Guhan Subramanian and Caley Petrucci
The COVID-19 pandemic has brought new attention to the period between signing and closing in M&A transactions. Transactional planners heavily negotiate the provisions that govern the behavior of the parties during this window, not only to allocate risk between the...
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Subramanian, Guhan, and Caley Petrucci. "Deals in the Time of Pandemic." Columbia Law Review 121, no. 5 (June 2021): 1405–1480.
- January 2021 (Revised March 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
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
Rithmire, Meg, and Gamze Yucaoglu. "Snapp: Scaling Under Sanctions in Iran (A)." Harvard Business School Case 721-020, January 2021. (Revised March 2022.)
- 2020
- Working Paper
Design and Analysis of Switchback Experiments
By: Iavor I Bojinov, David Simchi-Levi and Jinglong Zhao
In switchback experiments, a firm sequentially exposes an experimental unit to a random treatment, measures its response, and repeats the procedure for several periods to determine which treatment leads to the best outcome. Although practitioners have widely adopted...
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Bojinov, Iavor I., David Simchi-Levi, and Jinglong Zhao. "Design and Analysis of Switchback Experiments." Harvard Business School Working Paper, No. 21-034, September 2020.
- August 2020
- Article
Leverage and the Beta Anomaly
By: Malcolm Baker, Mathias F. Hoeyer and Jeffrey Wurgler
The well-known weak empirical relationship between beta risk and the cost of equity—the beta anomaly—generates a simple tradeoff theory: As firms lever up, the overall cost of capital falls as leverage increases equity beta, but as debt becomes riskier the marginal...
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Baker, Malcolm, Mathias F. Hoeyer, and Jeffrey Wurgler. "Leverage and the Beta Anomaly." Journal of Financial and Quantitative Analysis 55, no. 5 (August 2020): 1491–1514.
- July 2020
- Case
Michael Solomonov: Jerusalem in a Bowl
By: Boris Groysberg, Evan M.S. Hecht and Katherine Connolly Baden
Before the COVID-19 pandemic hit, Michael Solomonov and Steven Cook had begun to wonder whether it might be time to rethink their opportunistic approach to the expansion of their small restaurant empire in Philadelphia, CooknSolo. The pandemic, however, caused an...
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Keywords:
Restaurant Industry;
Entrepreneur;
COVID-19;
Crisis;
Crisis Response Plans;
Entrepreneurship;
Food;
Health Pandemics;
Crisis Management;
Innovation and Invention;
Leadership;
Creativity;
Strategy;
Ownership;
Problems and Challenges;
Risk and Uncertainty;
Situation or Environment;
Food and Beverage Industry;
United States
Groysberg, Boris, Evan M.S. Hecht, and Katherine Connolly Baden. "Michael Solomonov: Jerusalem in a Bowl." Harvard Business School Case 421-016, July 2020.
- June 2020
- Article
How Scheduling Can Bias Quality Assessment: Evidence from Food Safety Inspections
By: Maria Ibanez and Michael W. Toffel
Accuracy and consistency are critical for inspections to be an effective, fair, and useful tool for assessing risks, quality, and suppliers—and for making decisions based on those assessments. We examine how inspector schedules could introduce bias that erodes...
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Keywords:
Assessment;
Bias;
Inspection;
Scheduling;
Econometric Analysis;
Empirical Research;
Regulation;
Health;
Food;
Safety;
Quality;
Performance Consistency;
Governing Rules, Regulations, and Reforms
Ibanez, Maria, and Michael W. Toffel. "How Scheduling Can Bias Quality Assessment: Evidence from Food Safety Inspections." Management Science 66, no. 6 (June 2020): 2396–2416. (Revised February 2019. Featured in Harvard Business Review, Forbes, Food Safety Magazine, Food Safety News, and KelloggInsight. (2020 MSOM Responsible Research Finalist.))
- May 2020
- Article
Measuring Collaboration in Modern Organizations
By: Stephen Michael Impink, Andrea Prat and Raffaella Sadun
Internal communication has been a central theme in organizational economics, as employee collaboration provides insight into the structure of firms. Use of electronic communications data can be transformational for organizational economics, as these data provide a...
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Keywords:
Collaboration;
Employees;
Interactive Communication;
Measurement and Metrics;
Organizations;
Performance
Impink, Stephen Michael, Andrea Prat, and Raffaella Sadun. "Measuring Collaboration in Modern Organizations." AEA Papers and Proceedings 110 (May 2020): 181–186.
- April 2020
- Background Note
U.S. Food Retail During the Pandemic: March 2020
By: José B. Alvarez and Natalie Kindred
This note, written in late March 2020 and mainly U.S. focused, looks at the unfolding impact of the coronavirus pandemic on food retailers and their suppliers. It allows student to consider the challenges facing food retail executives as they navigate urgent supply...
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Keywords:
Coronavirus Pandemic;
Risk and Uncertainty;
Risk Management;
Food;
Supply Chain;
Consumer Behavior;
Demand and Consumers;
Trade;
Crisis Management;
Health Pandemics;
Food and Beverage Industry;
Agriculture and Agribusiness Industry;
Retail Industry;
United States
Alvarez, José B., and Natalie Kindred. "U.S. Food Retail During the Pandemic: March 2020." Harvard Business School Background Note 520-098, April 2020.
- December 2019
- Article
Costly Concessions: An Empirical Framework for Matching with Imperfectly Transferable Utility
By: Alfred Galichon, Scott Duke Kominers and Simon Weber
We introduce an empirical framework for models of matching with imperfectly transferable utility and unobserved heterogeneity in tastes. Our framework allows us to characterize matching equilibrium in a flexible way that includes as special cases the classic fully- and...
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Keywords:
Sorting;
Matching;
Marriage Market;
Intrahousehold Allocation;
Imperfectly Transferable Utility;
Marketplace Matching;
Mathematical Methods
Galichon, Alfred, Scott Duke Kominers, and Simon Weber. "Costly Concessions: An Empirical Framework for Matching with Imperfectly Transferable Utility." Journal of Political Economy 127, no. 6 (December 2019): 2875–2925.
- October 2019 (Revised April 2020)
- Background Note
Note on Funding Deep Tech Startups
By: Karim Lakhani, Peter Barrett and Noubar Afeyan
This Background Note provides essential information on funding deep technologies—those technologies that were inherently capital intensive, time consuming, risky, and potentially disruptive. Both dilutive and non-dilutive sources of investment are highlighted, along...
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Keywords:
Entrepreneurship;
Energy;
Venture Capital;
Corporate Finance;
Initial Public Offering;
Investment;
Health Testing and Trials;
Innovation and Invention;
Technological Innovation;
Intellectual Property;
Product Design;
Product Development;
Information Technology;
Research and Development;
Risk and Uncertainty;
Technology Industry;
Biotechnology Industry;
United States;
North America;
Europe;
Asia
Lakhani, Karim, Peter Barrett, and Noubar Afeyan. "Note on Funding Deep Tech Startups." Harvard Business School Background Note 620-029, October 2019. (Revised April 2020.)
- 2019
- Working Paper
The Impact of Professionals' Contributions to Online Knowledge Communities on Their Workplace Knowledge Work
By: Hila Lifshitz - Assaf and Frank Nagle
Knowledge work is becoming increasingly challenging as pace of change in the knowledge frontier is increasing. Organizations have created multiple mechanisms to minimize knowledge gaps and increase learning such internal training, mentorship programs as well as...
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Keywords:
Open Source;
Future Of Work;
Software Development;
Knowledge Work;
Online Community;
Learning;
Knowledge Sharing;
Applications and Software;
Open Source Distribution;
Performance Productivity
Lifshitz - Assaf, Hila, and Frank Nagle. "The Impact of Professionals' Contributions to Online Knowledge Communities on Their Workplace Knowledge Work." Working Paper, April 2019.
- 2019
- Working Paper
Bank Boards: What Has Changed Since the Financial Crisis?
By: Shiva Rajgopal, Suraj Srinivasan and Forester Wong
Several government-mandated committees investigating the financial crisis highlighted four key deficiencies in the composition of bank boards before the crisis: (i) group think among bank board members; (ii) absence of prior banking experience of board members; (iii)...
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Keywords:
Banks and Banking;
Governing and Advisory Boards;
Corporate Governance;
Financial Crisis;
Change;
Diversity
Rajgopal, Shiva, Suraj Srinivasan, and Forester Wong. "Bank Boards: What Has Changed Since the Financial Crisis?" Harvard Business School Working Paper, No. 19-108, April 2019.
- Article
Accuracy First: Selecting a Differential Privacy Level for Accuracy-Constrained ERM
By: Katrina Ligett, Seth Neel, Aaron Leon Roth, Bo Waggoner and Steven Wu
Traditional approaches to differential privacy assume a fixed privacy requirement ϵ for a computation, and attempt to maximize the accuracy of the computation subject to the privacy constraint. As differential privacy is increasingly deployed in practical settings, it...
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Ligett, Katrina, Seth Neel, Aaron Leon Roth, Bo Waggoner, and Steven Wu. "Accuracy First: Selecting a Differential Privacy Level for Accuracy-Constrained ERM." Journal of Privacy and Confidentiality 9, no. 2 (2019).
- 2018
- Book
Varieties of Green Business: Industries, Nations and Time
By: Geoffrey Jones
Published at a time of ever-increasing warnings that the pace of climate change and other environmental changes risk making the Earth unsustainable within our own lifetimes, this book looks at the past of green business to identify lessons for the future. It provides...
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Keywords:
Green Business;
Sustainability;
Business History;
Eco-tourism;
Organic Wine;
Organic Food;
Waste Management;
Sustainable Finance;
Ethics;
Finance;
History;
Entrepreneurship;
Accommodations Industry;
Agriculture and Agribusiness Industry;
Banking Industry;
Energy Industry;
Food and Beverage Industry;
Green Technology Industry;
Tourism Industry;
Europe;
Asia;
Latin America;
North and Central America;
New Zealand
Jones, Geoffrey. Varieties of Green Business: Industries, Nations and Time. Northamption, MA: Edward Elgar Publishing, 2018.
- July 2018 (Revised August 2018)
- Case
Project Helios: Harvesting the Sun
By: Mark Egan and E. Scott Mayfield
Aware of the impact that modern society was having on the environment, Ashley Telkes had always tried to be cognizant of her own impact on the environment and to take reasonable steps to mitigate her own effects. Having already implemented a number of passive measures...
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Egan, Mark, and E. Scott Mayfield. "Project Helios: Harvesting the Sun." Harvard Business School Case 219-009, July 2018. (Revised August 2018.)
- February 2018
- Article
Retention Futility: Targeting High-Risk Customers Might Be Ineffective.
By: Eva Ascarza
Companies in a variety of sectors are increasingly managing customer churn proactively, generally by detecting customers at the highest risk of churning and targeting retention efforts towards them. While there is a vast literature on developing churn prediction models...
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Keywords:
Retention/churn;
Proactive Churn Management;
Field Experiments;
Heterogeneous Treatment Effect;
Machine Learning;
Customer Relationship Management;
Risk Management
Ascarza, Eva. "Retention Futility: Targeting High-Risk Customers Might Be Ineffective." Journal of Marketing Research (JMR) 55, no. 1 (February 2018): 80–98.