Publications
Publications
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- All HBS Web
(742)
- Faculty Publications (193)
- 2017
- Working Paper
Nowcasting the Local Economy: Using Yelp Data to Measure Economic Activity
By: Edward L. Glaeser, Hyunjin Kim and Michael Luca
Can new data sources from online platforms help to measure local economic activity? Government datasets from agencies such as the U.S. Census Bureau provide the standard measures of economic activity at the local level. However, these statistics typically appear only... View Details
- 2017
- Working Paper
The Decline of Big-Bank Lending to Small Business: Dynamic Impacts on Local Credit and Labor Markets
By: Brian S. Chen, Samuel G. Hanson and Jeremy C. Stein
Small business lending by the four largest banks fell sharply relative to others in 2008 and remained depressed through 2014. We explore the dynamic adjustment process following this credit supply shock. In counties where the largest banks had a high market share, the... View Details
Keywords: Small Business; Financing and Loans; Banks and Banking; System Shocks; Credit; Labor; United States
- August 2017
- Case
Infection Control at Massachusetts General Hospital (Abridged)
By: Robert S. Huckman and Nikolaos Trichakis
The case explores the challenges facing Massachusetts General Hospital concerning the adoption of a new infection control policy, which promises to improve operational performance, patient safety, and profitability. The new policy requires coordination between... View Details
- August 2017 (Revised August 2018)
- Case
Busbud: Building a Data Company
By: Srikant M. Datar, Alistair Croll and Caitlin N. Bowler
The case features the work of LP Maurice (HBS '08) as he decides to take on the fragmented bus travel industry and launch an online business that aggregates and shares bus schedules for routes around the world. His first challenge: finding that the data he needs is... View Details
- June 2017
- Article
Does Aggregated Returns Disclosure Increase Portfolio Risk Taking?
By: John Beshears, James J. Choi, David Laibson and Brigitte C. Madrian
Many experiments have found that participants take more investment risk if they see returns less frequently, see portfolio-level returns (rather than each individual asset’s returns), or see long-horizon (rather than one-year) historical return distributions. In... View Details
- May 2017
- Article
Agent-based Modeling: A Guide for Social Psychologists
By: Joshua Conrad Jackson, David Rand, Kevin Lewis, Michael I. Norton and Kurt Gray
Agent-based modeling is a longstanding but underused method that allows researchers to simulate artificial worlds for hypothesis testing and theory building. Agent-based models (ABMs) offer unprecedented control and statistical power by allowing researchers to... View Details
- April 2017
- Article
Private Equity and Industry Performance
By: Shai Bernstein, Josh Lerner, Morten Sorensen and Per Stromberg
The growth of the private equity industry has spurred concerns about its potential impact on the economy more generally. This analysis looks across nations and industries to assess the impact of private equity on industry performance. Industries where PE funds have... View Details
- 2017
- Chapter
Empirical Evidence on the Behavior and Impact of Patent Trolls: A Survey
By: Lauren Cohen, Umit Gurun and Scott Duke Kominers
We survey the empirical literature on non-practicing entity (NPE) litigation behavior and its consequences. We document both aggregate trends and cross-sectional differences amongst various types of NPEs. Survey evidence illustrates a number of ways in which NPEs can... View Details
Keywords: Patent Trolls; NPEs; PAEs; Innovation; Patents; Lawsuits and Litigation; Innovation and Invention
- 2016
- Working Paper
Patent Disclosures and Standard-Setting
By: Josh Lerner, Haris Tabakovic and Jean Tirole
A key role of standard setting organizations (SSOs) is to aggregate information on relevant intellectual property (IP) claims before deciding on a standard. This article explores the firms’ strategies in response to IP disclosure requirements—in particular, the choice... View Details
- July 2016
- Case
Cataumet Boats, Inc.
By: W. Earl Sasser and Mark Davis
Jaime Giancola, an MBA student, has recently completed an operations management course in which aggregate production planning (APP) was one of the topics. She believes that her family's business, Cataumet Boats, which her grandparents started and which her mother and... View Details
- 2016
- Article
Organizational Decision-Making and Information: Angel Investments by Venture Capital Partners
By: Andy Wu
We study information aggregation in organizational decision-making for the financing of entrepreneurial ventures. We introduce a formal model of voting where agents face costly tacit information to improve their decision quality. Equilibrium outcomes suggest a... View Details
- 2019
- Working Paper
Fiscal Rules and Sovereign Default
By: Laura Alfaro and Fabio Kanczuk
Recurrent concerns over debt sustainability in emerging and developed nations have prompted renewed debate on the role of fiscal rules. Their optimality, however, remains unclear. We provide a quantitative analysis of fiscal rules in a standard model of sovereign debt... View Details
- June 2016
- Article
Social and Spatial Clustering of People at Humanity's Largest Gathering
By: Ian Barnett, Tarun Khanna and Jukka-Pekka Onnela
Macroscopic behavior of scientific and societal systems results from the aggregation of microscopic behaviors of their constituent elements, but connecting the macroscopic with the microscopic in human behavior has traditionally been difficult. Manifestations of... View Details
- Article
The Growing Problem of Patent Trolling
By: Lauren Cohen, Umit Gurun and Scott Duke Kominers
The last decade has seen a sharp rise in patent litigation in the U.S., with 2015 having one of the highest patent lawsuit counts on record. In theory, this could be a consequence of growth in the commercialization of technology and innovation—patent lawsuits increase... View Details
- 2019
- Working Paper
The Customer May Not Always Be Right: Customer Compatibility and Service Performance
This paper investigates the impact of customer compatibility – the degree of fit between the needs of customers and the capabilities of the operations serving them – on customer experiences and firm performance. We use a variance decomposition analysis to quantify the... View Details
- 2015
- Working Paper
Replicating Private Equity with Value Investing, Homemade Leverage, and Hold-to-Maturity Accounting
By: Erik Stafford
Private equity funds tend to select relatively small firms with low EBITDA multiples. Publicly traded equities with these characteristics have high risk-adjusted returns after controlling for common factors typically associated with value stocks. Hold-to-maturity... View Details
- December 15, 2015
- Article
Don't Turn Your Sales Team Loose Without a Strategy
By: Frank V. Cespedes and Steve Thompson
When formulating a strategy, markets and segments are typically important categories. But only customers buy. Hence, for most firms, de facto strategy and much resource allocation are the aggregate result of the deals their salespeople close. However, few firms clarify... View Details
- 2015
- Working Paper
Financial Patent Quality: Finance Patents After State Street
By: Josh Lerner, Andrew Speen, Mark Baker and Ann Leamon
In the past two decades, patents of inventions related to financial services ("finance patents"), as well as litigation around these patents, have surged. One of the repeated concerns voiced by academics and practitioners alike has been about the quality of these... View Details
- 2015
- Working Paper
The Probability of Rare Disasters: Estimation and Implications
By: Emil Siriwardane
I analyze a rare disasters economy that yields a measure of the risk neutral probability of a macroeconomic disaster, p*t. A large panel of options data provides strong evidence that p*t is the single factor driving option-implied jump risk measures in the cross... View Details
- October 2015
- Teaching Note
Clef Company: Turnover
Clef Company sells keys and other products to retail outlets, which then sell these products to consumers. The case concerns turnover in Clef's sales force in the context of company strategy, financial performance, and a day in the life of a Clef salesperson. Among... View Details