Publications
Publications
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(4,899)
- Faculty Publications (850)
- March 2018
- Article
Scraped Data and Sticky Prices
By: Alberto Cavallo
I use daily prices collected from online retailers in five countries to study the impact of measurement bias on three common price stickiness statistics. Relative to previous results, I find that online prices have longer durations, with fewer price changes close to... View Details
- February 2018 (Revised June 2021)
- Case
New Constructs: Disrupting Fundamental Analysis with Robo-Analysts
By: Charles C.Y. Wang and Kyle Thomas
This case highlights the business challenges associated with a financial technology firm, New Constructs, that created a technology that can quickly parse complicated public firm financials to paint a clearer economic picture of firms, remove accounting distortions,... View Details
- January 2018 (Revised August 2018)
- Supplement
Fair Value Accounting at Noble Group (B)
By: Siko Sikochi, Suraj Srinivasan and Quinn Pitcher
Following a series of reports by Iceberg Research alleging that Noble Group was too aggressive in its fair value accounting for contracts and investments in producers, Noble’s stock price continued to fall and stakeholders began to call for improved transparency in... View Details
- 2019
- Working Paper
Do Banks Have an Edge?
By: Juliane Begenau and Erik Stafford
Overall, no! We show that the level and time series variation in cash flows for most bank activities are well matched by capital market portfolios with similar interest rate and credit risk to what banks report to hold. Ignoring operating expenses, bank loans earn high... View Details
Keywords: Banks; Market Efficiency; Bank Capital; Bank Debt; CAPM; Banking; Bank Deposits; Bank Funding Advantage; Leverage; Maturity Transformation; Replicating Portfolio; Efficiency; Banks and Banking; Capital Markets; Performance Evaluation; Performance Efficiency; Banking Industry; United States
- January 2018 (Revised May 2018)
- Case
AT&T: Managing Technological Change and the Future of Telephone Operators in the 20th Century
By: Daniel P. Gross and William R. Kerr
By the 1930s, AT&T dominated the American phone industry, serving 10 million telephones and employing over 100,000 switchboard operators. But beginning in the mid-1910s, the company began changing from manually operated switchboards to mechanical switching systems that... View Details
Keywords: AT＆T; Bell Telephone; Phone Lines; Phone Operators; Mechanical Switching; Layoffs; Technological Change; Transition; History; Innovation and Invention; Technological Innovation; Information Technology; Disruption; Change Management; Communications Industry; Telecommunications Industry; United States
- January–February 2018
- Article
More than a Paycheck: How to Create Good Blue-Collar Jobs in the Knowledge Economy
By: Dennis Campbell, John Case and Bill Fotsch
Fifty years ago a good blue-collar job was with a large manufacturer such as General Motors or Goodyear. Often unionized, it paid well, offered benefits, and was secure. But manufacturing employment has steadily declined, from about 25% of the U.S. labor force in 1970... View Details
- 2018
- Report
The Future of Nuclear Energy in a Carbon-Constrained World: An Interdisciplinary MIT Study
The Future of Nuclear Energy in a Carbon-Constrained World study is the eighth in the MIT Energy Initiative’s "Future of" series, which aims to shed light on a range of complex and important issues involving energy and the environment. A central theme is... View Details
- December 2017 (Revised June 2021)
- Case
Tesla's Bid for SolarCity (A)
By: Charles C.Y. Wang and Raaj Zutshi
In October 2016, Tesla asked its shareholders to ratify their $2.4 billion bid for SolarCity. Tesla had announced a series of large projects in the preceding months including the unveiling of the Model 3, the new Solar Roof, and pushing forward the opening of the... View Details
- December 2017 (Revised April 2018)
- Case
The Children's Hospital of Philadelphia: Network Strategy 2016
By: Michael E. Porter, Thomas W. Feeley and Toyin J. Okanlawon
Children’s Hospital of Philadelphia (CHOP) began as a stand-alone hospital in the heart of downtown Philadelphia in 1855. By 2016 the CHOP Care Network stretched across Pennsylvania, New Jersey, and the New York metropolitan area, providing a wide range of services... View Details
- November 2017 (Revised April 2019)
- Case
Summa Equity: Building Purpose-Driven Organizations
By: George Serafeim
In 2015, Reynir Indahl left top Nordic private equity firm Altor Equity Partners to found Summa Equity (Summa). After long contemplation following the financial crisis, Indahl was convinced the financial system was producing negative externalities and that the current... View Details
Keywords: Corporate Purpose; ESG; ESG (Environmental, Social, Governance) Performance; Social Impact; Investment Management; Management Practices; Innovation; Voice; Environmental Impact; Private Equity; Social Enterprise; Finance; Capital Markets; Management Practices and Processes; Innovation Leadership; Leadership; Innovation and Management; Entrepreneurship; Mission and Purpose; Value Creation; Financial Services Industry; Norway; Sweden; Scandinavia
- 2017
- Working Paper
The Use and Misuse of Patent Data: Issues for Corporate Finance and Beyond
By: Josh Lerner
Patents and citations are powerful tools for understanding innovative activity inside the firm and are increasingly used in corporate finance research. But due to the complexities of patent data collection and the changing spatial and industry composition of innovative... View Details
- November 2017 (Revised August 2018)
- Case
Fair Value Accounting at Noble Group (A)
By: Siko Sikochi, Suraj Srinivasan and Quinn Pitcher
Noble Group was a large commodities trader based in Hong Kong and listed on the Singapore Stock Exchange. In 2012, Noble shifted its business strategy towards an asset-light model. Under this model, Noble did not own mines or farms to produce commodities but built... View Details
- 2017
- Report
The American Angel: The First In-Depth Report on the Demographics and Investing Activity of Individual American Angel Investors
By: Laura Huang, Andy Wu, Min Ju Lee, Jiayi Bao, Marianne Hudson and Elaine Bolle
Early-stage financing from angel investors is critical to the success of high-growth startups. Recent estimates suggest that annual US angel investment activity may total as much as $24 billion each year, contributing to the growth and success of more than 64,000... View Details
- Article
What Managers Need to Know About Social Tools: Avoid the Common Pitfalls So That Your Organization Can Collaborate, Learn, and Innovate
By: Paul Leonardi and Tsedal Neeley
Workplaces have adopted internal social tools—think stand-alone technologies such as Slack, Yammer, and Chatter, or embedded applications such as Microsoft Teams and JIRA—at a staggering rate. In an ambitious study of 4,200 companies, conducted by the McKinsey Global... View Details
- October 2017 (Revised April 2019)
- Case
Data Breach at Equifax
By: Suraj Srinivasan, Quinn Pitcher and Jonah S. Goldberg
The case discusses the events leading up to the massive data breach at Equifax, one of the three U.S. credit reporting companies, the organizational and governance issues that contributed to the breach, and the consequences of the breach. The case supplement provides... View Details
- October 2017 (Revised October 2022)
- Case
JetBlue: Relevant Sustainability Leadership (A)
By: George Serafeim
In 2017, JetBlue, the airline founded on the mission to “bring humanity back to air travel,” was considering becoming one of the first companies to report its sustainability performance according to the Sustainability Accounting Standards Board (SASB) standards. SASB... View Details
Keywords: Sustainability; Metrics; Leadership And Change Management; Airlines; Innovation; Purpose; ESG; ESG (Environmental, Social, Governance) Performance; Sustainability Reporting; Change Management; Leadership; Financial Reporting; Environmental Sustainability; Mission and Purpose; Reports; Competitive Strategy; Measurement and Metrics; Corporate Social Responsibility and Impact; Air Transportation Industry; United States
- October 5, 2017
- Article
Making Patients and Doctors Happier—The Potential of Patient-Reported Outcomes
By: Lisa Rotenstein, Robert S. Huckman and Neil Wagle
- Article
Describing Wait Time Bottlenecks for ED Patients Undergoing Head CT
By: Jonathan G. Rogg, Robert S. Huckman, Michael Lev, Ali Raja, Yuchiao Chang and Benjamin White
Study objectives: Facing increased utilization and subsequent capacity and budget constraints, EDs must better understand bottlenecks and their effect on process flow to improve process efficiency. The primary objective of this study was to identify bottlenecks in... View Details
- September 2017
- Case
Blackstone's Julia Kahr at the Summit
By: Paul A. Gompers, John D. Dionne and Amram Migdal
In 2009, Blackstone, the New York-based alternative asset and financial services firm, committed to invest up to $750 million into Summit Materials, a new company in the aggregates sector (i.e., construction materials, such as crushed stone, sand, gravel, cement,... View Details
Keywords: Roll Up; Private Equity Roll Up; Aggregates; Aggregates Materials; Construction Materials; Business Ventures; Acquisition; Leveraged Buyouts; Business Growth and Maturation; Engineering; Construction; Finance; Capital; Equity; Private Equity; Financial Instruments; Investment; Housing; Management; Goals and Objectives; Growth and Development Strategy; Growth Management; Personal Development and Career; Management Teams; Planning; Problems and Challenges; Value; Valuation; Value Creation; Construction Industry; Financial Services Industry; United States
- Article
Narrow Networks on the Health Insurance Marketplaces: Prevalence, Pricing, and the Cost of Network Breadth
By: Leemore S. Dafny, Igal Hendel, Victoria Marone and Christopher Ody
Anecdotal reports and systematic research highlight the prevalence of narrow-network plans on the Affordable Care Act’s health insurance Marketplaces. At the same time, Marketplace premiums in the period 2014–2016 were much lower than projected by the Congressional... View Details