Publications

Robin Ely is the Diane Doerge Wilson Professor of Business Administration at Harvard Business School. She conducts research on race and gender relations in organizations with a focus on leadership, identity, and organizational culture change.... View Details

2019
Article

Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading

By: Iavor I Bojinov and Neil Shephard

We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact randomization based p-values for testing causal... View Details

Keywords: Causality; Nonparametric; Potential Outcomes; Trading Costs; Mathematical Methods

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02 Feb 2022
News

Cold Call: Black Business Leaders Series 2022

Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading

We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact... View Details

Web

2+2 Where Are They Now Spotlight: Smitha Das (MBA 2018) - MBA

Blog Blog MBA Voices Filter Results Arrow Down Arrow Up Read posts from Author Alumni Author Career and Professional Development Staff Author HBS Community Author HBS Faculty Author MBA Admissions Author MBA Students Topics Topics 1st Year (RC) 2+2 Program 2nd Year... View Details

26 Aug 2014
News

Harvard Business School Honors Outstanding Graduates with Alumni Achievement Awards

January 2018 (Revised October 2019)
Case

Christie's and Leonardo da Vinci's Salvator Mundi: The Value of a Brand

By: Jill Avery

A 16th century Renaissance masterpiece, missing for 137 years, believed by many to have been destroyed and then rediscovered less than a decade ago, becomes the most expensive painting ever sold, all the while surrounded by controversy. Did the buyer of Leonardo da... View Details

September 2021
Case

Vignettes on Professional Service Firm Governance

By: David G. Fubini, Suraj Srinivasan and Li-Kuan Ni

The two vignettes within “Vignettes on Professional Service Firm Governance” (HBS No. 122-024) present various issues relating to governance in professional service firms (“PSFs”). In the first, the Managing Director of a U.S. consulting firm contemplates whether to... View Details

Research Summary

Overview

Professor Begenau’s research agenda is directed at better understanding how financial markets work and how they affect the real economy. She uses quantitative analysis to build both prescriptive and descriptive models concerning financial risk in banking, and she also... View Details

01 Jul 2013
Research & Ideas

Crowdfunding a Poor Investment?

nearly double the amount in 2012. That's nothing compared to the bonanza expected when the SEC opens up the floodgates for nonaccredited individual investors to directly acquire equity in private companies—and for companies to directly... View Details

Keywords: by Michael Blanding; Financial Services

July–August 2013
Article

A Joint Model of Usage and Churn in Contractual Settings

By: Eva Ascarza and Bruce G.S. Hardie

As firms become more customer-centric, concepts such as customer equity come to the fore. Any serious attempt to quantify customer equity requires modeling techniques that can provide accurate multiperiod forecasts of customer behavior. Although a number of researchers... View Details

Keywords: Churn; Retention; Contractual Settings; Access Services; Hidden Markov Models; RFM; Latent Variable Models; Customer Value and Value Chain; Consumer Behavior

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October 2011 (Revised December 2011)
Case

Vignette: Alternative Liquidity Options

By: Felda Hardymon, Josh Lerner and Ann Leamon

The growth of companies that facilitate the sales of unregistered stock, such as that granted to employees of successful but long-private companies, has raised a number of questions among regulators, investors, and company founders. This brief vignette sketches out... View Details

Keywords: Financial Liquidity; Private Equity; Stocks; Business Growth and Maturation; Sales

2005
Working Paper

Pseudo Market Timing and Predictive Regressions

By: Malcolm Baker, Ryan Taliaferro and Jeffrey Wurgler

A number of studies claim that aggregate managerial decision variables, such as aggregate equity issuance, have power to predict stock or bond market returns. Recent research argues that these results may be driven by an aggregate time-series version of Schultz's... View Details

Keywords: Managerial Roles; Equity; Market Timing; Financial Instruments; Investment Return; Mathematical Methods

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11 Mar 2022
News

Professors Josh Lerner and Shai Bernstein: Complexity

January 2008
Background Note

Valuing Risky Debt

By: Joshua Coval and Erik Stafford

This lesson develops the classical structural approach to pricing and hedging credit risk: Merton's (1974) contingent claims model of debt and equity claims. This model is used to make investment and risk management decisions in an over-the-counter (OTC) market for... View Details

Keywords: Borrowing and Debt; Credit; Investment; Price; Risk Management; Mathematical Methods; Valuation

July 2011
Article

Kidney Paired Donation

By: C. Bradley Wallis, Kannan P. Samy, Alvin E. Roth and Michael A. Rees

Kidney paired donation (KPD) was first suggested in 1986, but it was not until 2000 when the first paired donation transplant was performed in the U.S. In the past decade, KPD has become the fastest growing source of transplantable kidneys, overcoming the barrier faced... View Details

Keywords: Philanthropy and Charitable Giving; Health Care and Treatment; Growth and Development Strategy; Success; Problems and Challenges; Programs; System; United States

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2009
Working Paper

Systemic Risk and the Refinancing Ratchet Effect

By: Amir E. Khandani, Andrew W. Lo and Robert C. Merton

The confluence of three trends in the U.S. residential housing market—rising home prices, declining interest rates, and near-frictionless refinancing opportunities—led to vastly increased systemic risk in the financial system. Individually, each of these trends is... View Details

Keywords: Housing; Mortgages; Risk and Uncertainty; Value; Mathematical Methods; Real Estate Industry; United States

11 Jun 2013
Working Paper Summaries

Measurement Errors of Expected Returns Proxies and the Implied Cost of Capital

Keywords: by Charles C.Y. Wang

May 2018
Article

Linda Babcock: Go-getter and Do-gooder

By: Max Bazerman, Iris Bohnet, Hannah Riley-Bowles and George Loewenstein

In this tribute to the 2007 recipient of the Jeffrey Z. Rubin Theory‐To‐Practice Award from the International Association for Conflict Management (IACM), we celebrate Linda Babcock's contributions to diverse lines of research, her tireless and effective efforts to put... View Details

Keywords: Personal Development and Career; Biography; Research; Negotiation; Leadership; Practice