Publications

SSRN

21 Jul 2021
Research & Ideas

What Does an ESG Score Really Say About a Company?

Receiving more information can clarify the complex, but not when it comes to environmental, social, and governance (ESG) scores. A recent study shows that the more information a company discloses about its ESG practices, the more rating agencies disagree on how well... View Details

Keywords: by Kristen Senz

How to Make Climate Risk Good Business

The risk profiles of many real estate markets are rapidly increasing globally. Insurers and mortgage brokers are taking note and adjusting their offering based on widely available climate data and predictive analytics. John Macomber suggests that consumers and... View Details

March 2025 (Revised April 2025)
Case

WallStreetBets: Democratizing Retail Investing

By: Joseph Pacelli and Alexis Lefort

In summer 2024, Jaime Rogozinski anticipated the launch of a day-trading eSports event, a vision he had nurtured for years. Rogozinski, the founder of the influential subreddit WallStreetBets (WSB), created the forum in 2012 as a space for retail traders to explore... View Details

Keywords: Investment; Emerging Markets; Market Participation; Financial Strategy; Lawsuits and Litigation; Social and Collaborative Networks; Financial Markets; Financial Services Industry; United States

Educators

November 2024
Article

Perceptions About Monetary Policy

By: Michael D. Bauer, Carolin Pflueger and Adi Sunderam

We estimate perceptions about the Federal Reserve’s monetary policy rule from panel data on professional forecasts of interest rates and macroeconomic conditions. The perceived dependence of the federal funds rate on economic conditions varies substantially over time,... View Details

Keywords: Monetary Policy; Policy; Interest Rates; Perception; Economy; Forecasting and Prediction

November–December 2016
Article

The Impact of Patent Wars on Firm Strategy: Evidence from the Global Smartphone Industry

By: Yongwook Paik and Feng Zhu

Strategy scholars have documented in various empirical settings that firms seek and leverage stronger institutions to mitigate hazards and gain competitive advantage. In this paper, we argue that such “institution-seeking” behavior may not be confined to the pursuit of... View Details

Keywords: Patent Wars; Patent Litigation; Intellectual Property (IP) Enforcement; Institutions; Patent Thicket; Smartphone; Patents; Corporate Strategy; Mobile Technology

17 Mar 2009
First Look

First Look: March 17, 2009

market setting, the transfer price that maximizes a multinational's profits may also be the same one that maximizes the social welfare of the domestic economy that houses it. Download the paper: http://www.hbs.edu/research/pdf/09-098.pdf... View Details

Keywords: Martha Lagace

2013
Book

Wall Street Research: Past, Present, and Future

By: Boris Groysberg and Paul M. Healy

Wall Street equity analysts provide research products and services on publicly-traded companies to institutional and retail investors to help them make more profitable investment decisions. During the last ten years Wall Street research has been battered by a series of... View Details

Keywords: Financial Analysts; Investment Banks; Conflicts Of Interest; Accounting; Financial Institutions; Financial Services Industry; United States

28 Aug 2012
First Look

First Look: August 28

at a large investment firm relative to those of sell-side analysts from mid-1997 to 2004. We find that the buy-side firm's analysts issue less optimistic recommendations for stocks with larger market... View Details

Keywords: Sean Silverthorne

October 2008
Article

The Small World of Investing: Board Connections and Mutual Fund Returns

By: Lauren Cohen, Andrea Frazzini and Christopher J. Malloy

This paper uses social networks to identify information transfer in security markets. We focus on connections between mutual fund managers and corporate board members via shared education networks. We find that portfolio managers place larger bets on firms they are... View Details

Keywords: Financial Markets; Information Management; Social and Collaborative Networks; Announcements; Investment Portfolio; Investment Return; Investment Funds; Asset Pricing; Governing and Advisory Boards

April 2020 (Revised April 2023)
Case

TransDigm in 2017: The Beginning of the End or the End of the Beginning?

By: Benjamin C. Esty and Daniel Fisher

TransDigm was a highly acquisitive company that manufactured a wide range of highly engineered aerospace parts for both military and commercial customers. Over the ten years ending in 2016, its stock price had increased ten times, and both EBITDA and revenues had grown... View Details

Educators

28 Apr 2011
Op-Ed

While Waiting for Japan’s Recovery, Let’s Enhance Supplier Competitiveness at Home

earthquake damage. They can take action now to ensure that America invests in growing our domestic stock of world-class suppliers. A national campaign to enhance supply-chain partnerships could also accelerate job creation. America needs... View Details

Keywords: by Rosabeth Moss Kanter

March 2009
Article

Trade-offs in Staying Close: Corporate Decision Making and Geographic Dispersion

By: Augustin Landier, Vinay Nair and Julie Wulf

We document the role of geographic dispersion on corporate decision-making. Our findings include: (i) geographically dispersed firms are less employee friendly; (ii) dismissals of divisional employees are less common in divisions located closer to corporate... View Details

Keywords: Business Divisions; Business Headquarters; Decision Choices and Conditions; Geographic Location; Employees; Resignation and Termination; Retention

16 Jan 2007
First Look

First Look: January 16, 2007

http://vig.prenhall.com/catalog/academic/product/0,1144,0131732811-TOC,00.html How Globalization Passed Its Peak Authors:Rawi Abdelal and Adam Segal Periodical:Foreign Affairs, January/February 2007 Read a preview:... View Details

Keywords: Martha Lagace

April 2025
Article

The Fed and the Secular Decline in Interest Rates

By: Sebastian Hillenbrand

In this paper I document a striking fact: a narrow window around Fed meetings fully captures the secular decline in U.S. Treasury yields since 1980. By contrast, yield movements outside this window are transitory and wash out over time. This is surprising because the... View Details

Keywords: United States Treasury; Monetary Policy; Yield Curve; Bonds; Financial Markets; Government Administration; Valuation; Interest Rates; United States

SSRN

Randolph B. (Randy) Cohen is the MBA Class of 1975 Senior Lecturer of Entrepreneurial Management in the Finance Unit at Harvard Business School. Cohen’s main research focus has been the identification of top investment managers and the prediction of manager... View Details

Keywords: financial services; investment banking industry

July 1997 (Revised August 1997)
Case

numeric investors l.p.

By: Andre F. Perold and Brian J. Tierney

Numeric Investors manages equity portfolios with the use of a momentum model and a value model. The momentum model is based on earnings surprise and analysts' revisions of their earnings estimates. The firm offers long-short as well as long-only strategies, and its... View Details

Keywords: Asset Management; Cost; Equity; Financial Strategy; Investment; Investment Portfolio; Management; Product Development; Performance Efficiency; Business Strategy

Educators

Fall 2013
Article

In Strange Company: The Puzzle of Private Investment in State-Controlled Firms

By: Mariana Pargendler, Aldo Musacchio and Sergio G. Lazzarini

A large legal and economic literature describes how state-owned enterprises (SOEs) suffer from a variety of agency and political problems. Less theory and evidence, however, have been generated about the reasons why state-owned enterprises listed in stock markets... View Details

Keywords: State-owned Enterprises; Oil Companies; Corporate Governance; Business and Shareholder Relations; Energy Industry; Brazil; Mexico; Norway

SSRN

Corporate CEOs are headline news. Stock prices rise and fall at word of their hiring and firing. Business media debate their merits and defects as if individual leaders determined the health of the economy. Yet we know surprisingly little about how CEOs are selected... View Details

March 2013
Article

Misvaluing Innovation

By: Lauren Cohen, Karl Diether and Christopher Malloy

We demonstrate that a firm's ability to innovate is predictable, persistent, and relatively simple to compute, and yet the stock market ignores the implications of past successes when valuing future innovation. We show that two firms that invest the exact same in... View Details

Keywords: Innovation; Return Predictability; R＆D; Information; Forecasting and Prediction; Research and Development; Innovation and Invention