Publications
Publications
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- All HBS Web
(613)
- Faculty Publications (94)
- Article
Regulating Hospital Prices Based on Market Concentration Is Likely to Leave High-Price Hospitals Unaffected
By: Maximilian J. Pany, Michael E. Chernew and Leemore S. Dafny
Concern about high hospital prices for commercially insured patients has motivated several proposals to regulate these prices. Such proposals often limit regulations to highly concentrated hospital markets. Using a large sample of 2017 US commercial insurance claims,... View Details
- January–February 2021
- Article
Cross‐firm Return Predictability and Accounting Quality
By: Wen Chen, Mozaffar Khan, Leonid Kogan and George Serafeim
We test the hypothesis that if poor accounting quality (AQ) is associated with poor investor understanding of firms’ revenue and cost structures, then poor AQ stocks likely respond more slowly than good AQ stocks to new non‐idiosyncratic information that affects both... View Details
- October 2020
- Article
Collusion in Markets with Syndication
By: John William Hatfield, Scott Duke Kominers, Richard Lowery and Jordan M. Barry
Markets for IPOs and debt issuances are syndicated, in the sense that a bidder who wins a contract may invite losing bidders to join a syndicate that together fulfills the contract. We show that in markets with syndication, standard intuitions from industrial... View Details
Keywords: Collusion; Antitrust; IPO Underwriting; Syndication; ＂Repeated Games＂; Markets; Game Theory
- 2022
- Working Paper
Where the Cloud Rests: The Location Strategies of Data Centers
By: Shane Greenstein and Tommy Pan Fang
This study provides an analysis of the entry strategies of third-party data centers in the United States. We examine the market before the pandemic in 2018 and 2019, when supply and demand for data services were geographically stable. We compare with the entry... View Details
- 2020
- Working Paper
Best Ideas
By: Miguel Antón, Randolph B. Cohen and Christopher Polk
We find that the stocks in which active mutual fund or hedge fund managers display the most conviction towards ex-ante, their “Best ideas,” outperform the market, as well as the other stocks in those managers’ portfolios, by approximately 2.8 to 4.5 percent per year,... View Details
- 2021
- Working Paper
Digital Labor Market Inequality and the Decline of IT Exceptionalism
By: Ruiqing Cao and Shane Greenstein
Several decades of expansion in digital communications, web commerce, and online distribution have altered regional IT labor market returns in the United States. IT occupations experienced similar wage growth as STEM occupations involving IT-related work activities,... View Details
- 2020
- Working Paper
EMEs and COVID-19: Shutting Down in a World of Informal and Tiny Firms
By: Laura Alfaro, Oscar Becerra and Marcela Eslava
Emerging economies are characterized by an extremely high prevalence of informality, small-firm employment and jobs not fit for working from home. These features factor into how the COVID-19 crisis has affected the economy. We develop a framework that, based on... View Details
- 2020
- Working Paper
Costly External Financing and Monetary Policy Transmission: Evidence from a Natural Experiment
By: Emily Williams
I provide new evidence that large and small banks have different external financing costs, which generates cross sectional variation in a deposits market pricing power channel of monetary policy transmission. I do so by exploiting a natural experiment using anti-trust... View Details
- April 2020
- Article
Technological Leadership (de)Concentration: Causes in Information and Communication Technology Equipment
By: Yasin Ozcan and Shane Greenstein
Using patent data from 1976 to 2010 as indicators of inventive activity, we determine the concentration level of where inventive ideas originate and then examine how and why those concentrations change over time. The analysis finds pervasive deconcentration in every... View Details
- March 2020 (Revised June 2023)
- Case
EyeControl: Inspiring Communication
By: Paul A. Gompers and Danielle Golan
Eye-controlled communication device startup EyeControl was founded in Tel Aviv, Israel in 2016 by cofounders with a shared personal connection to locked-in syndrome—a neurological disorder that left sufferers cognitively sound, yet paralyzed, with the exception of eye... View Details
- 2020
- Working Paper
Capital Regulation and Product Market Outcomes
By: Ishita Sen and David Humphry
We present evidence of product market adjustments and asset reorganizations from the largest ever shift in risk regulation in a developed insurance market. Using proprietary data on insurance risk exposures from the Bank of England, we develop a measure of regulatory... View Details
- 2020
- Working Paper
Cutting the Gordian Knot of Employee Health Care Benefits and Costs: A Corporate Model Built on Employee Choice
By: Regina E. Herzlinger and Barak D. Richman
The U.S. employer-based health insurance tax exclusion created a system of employer-sponsored insurance (ESI) with limited insurance choices and transparency that may lock employed households into health plans that are costlier or different from those they prefer to... View Details
- 2020
- Working Paper
Internal Models, Make Believe Prices, and Bond Market Cornering
By: Ishita Sen and Varun Sharma
Exploiting position-level heterogeneity in regulatory incentives to misreport and novel data on regulators, we document that U.S. life insurers inflate the values of corporate bonds using internal models. We estimate an additional $9-$18 billion decline in regulatory... View Details
- October 2019
- Case
Kaspi.kz IPO
By: Victoria Ivashina and Esel Çekin
This case follows Kaspi.kz, a private equity (Baring Vostok) co-owned retail bank in Central Asia that evolved into a fintech, payments and e-commerce company. It provides insights into private equity financing, portfolio company management, and initial public offering... View Details
- September 2019
- Article
The Persistence of Broadband User Behavior: Implications for Universal Service and Competition Policy
By: Andre Boik, Shane Greenstein and Jeffrey Prince
In several markets, firms compete not for consumer expenditure but consumer attention. We examine user priorities over the allocation of their time, and interpret that behavior in light of salient tensions in policy discussions over universal service, data caps, and... View Details
- 2019
- Chapter
Spatial Agglomeration and Superstar Firms: Firm-level Patterns from Europe and U.S.
By: Laura Alfaro, Maggie X. Chen and Harald Fadinger
We characterize the agglomeration patterns of industries and plants in Europe, distinguishing Eurozone countries and the United States. Using a micro-level index, we quantify the degree of geographic concentration in industrial activities and explore how firm... View Details
- May 2019
- Article
The Role of Gatekeepers in Capital Markets
By: Sugata Roychowdhury and Suraj Srinivasan
Gatekeepers in financial markets have the power to provide the institutional stability, fortitude and direction necessary for the development and the smooth functioning of capital markets. At the same time, they are often motivated by their own private incentives.... View Details
- February 2019
- Article
The Market for Financial Adviser Misconduct
By: Mark Egan, Gregor Matvos and Amit Seru
We construct a novel database containing the universe of financial advisers in the United States from 2005 to 2015, representing approximately 10% of employment of the finance and insurance sector. We provide the first large-scale study that documents the economy-wide... View Details
- 2019
- Book
The Age of Surveillance Capitalism: The Fight for a Human Future at the New Frontier of Power
By: Shoshana Zuboff
In this masterwork of original thinking and research, Shoshana Zuboff provides startling insights into the phenomenon that she has named surveillance capitalism. The stakes could not be higher: a global architecture of behavior modification threatens human nature in... View Details
- Article
Navigating Talent Hot Spots
By: William R. Kerr
Innovation clusters like San Francisco and Boston have long had an outsize impact on the global economy, and their influence keeps growing. In 2017, for instance, America’s ten largest tech hubs accounted for 58% of U.S. patents. Globally, cities such as Tokyo, Paris,... View Details