Publications

Forthcoming
Article

Branch-and-Price for Prescriptive Contagion Analytics

By: Alexandre Jacquillat, Michael Lingzhi Li, Martin Ramé and Kai Wang

Contagion models are ubiquitous in epidemiology, social sciences, engineering, and management. This paper formulates a prescriptive contagion analytics model where a decision maker allocates shared resources across multiple segments of a population, each governed by... View Details

Keywords: COVID-19; Mathematical Methods

Ta-Wei (David) Huang is a PhD candidate in Quantitative Marketing at Harvard Business School. His research integrates causal inference and machine learning to address methodological challenges and unintended consequences in targeting, personalization, and online... View Details

December 1999 (Revised November 2003)
Background Note

Pricing: A Value-Based Approach

By: Robert J. Dolan

Presents a framework for determining prices for products and services in concert with the value provided to customers. Discusses methodologies for estimating customer value. View Details

Keywords: Price; Customers

December 2005
Article

Understanding Firm, Physician and Consumer Choice Behavior in the Pharmaceutical Industry

This paper argues that the pharmaceutical industry represents an exciting opportunity to carry out academic research. The nature of the industry allows researchers to answer new questions, develop new methodologies for answering these questions as well as to apply... View Details

Keywords: Opportunities; Consumer Behavior; Research; Pharmaceutical Industry

Research Summary

Making Machine Learning Models Interpretable

By: Himabindu Lakkaraju

I work on developing various tools and methodologies which can help decision makers (e.g., doctors, managers) to better understand the predictions of machine learning models. View Details

2020
Working Paper

Measuring the Cost of Corporate Water Usage

By: DG Park, George Serafeim and T. Robert Zochowski

We develop a methodology that calculates the impact that organizations have on the environment through their water consumption relating to water stress risk. Using the methodology, we derive estimates for four companies that show how assumptions on the geographic... View Details

Keywords: Water; Water Management; Environment; Sustainability; Environmental Impact; Impact-Weighted Accounts; IWAI; Organizations; Environmental Sustainability; Valuation

March 1988 (Revised June 1993)
Background Note

Leveraged Betas and the Cost of Equity

The objective is to delineate on methodology for measuring the risk associated with financial leverage and estimating its impact on the cost of equity capital. View Details

Keywords: Cost of Capital; Capital Structure; Equity

Article

Distance and Political Boundaries: Estimating Border Effects under Inequality Constraints

By: Fernando Borraz, Alberto Cavallo, Roberto Rigobon and Leandro Zipitria

The border effects literature finds that political boundaries have a large impact on relative prices across locations. In this paper we show that the standard empirical specification suffers from selection bias, and propose a new methodology based on binned-quantile... View Details

Keywords: Border Effects; Prices

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

2006
Working Paper

Can Higher Prices Stimulate Product Use? Evidence from a Field Experiment in Zambia

By: Nava Ashraf, James Berry and Jesse M. Shapiro

The controversy over whether and how much to charge for health products in the developing world rests, in part, on whether higher prices can increase use, either by targeting distribution to high-use households (a screening effect), or by stimulating use... View Details

Keywords: Price; Attitudes; Health Industry; Zambia

December 2010
Article

Can Higher Prices Stimulate Product Use? Evidence from a Field Experiment in Zambia

By: Nava Ashraf, James Berry and Jesse M. Shapiro

The controversy over how much to charge for health products in the developing world rests, in part, on whether higher prices can increase use, either by targeting distribution to high-use households (a screening effect), or by stimulating use psychologically through a... View Details

Keywords: Price; Product; Information; Zambia

October 2003 (Revised April 2006)
Background Note

Moral Reasoning: A Practical Guide for Leaders

By: Sandra J. Sucher

We encounter moral or ethical challenges in our professional lives, in our close relationships, and as members of the broader communities that we are part of. This methodology demonstrates how moral reasoning works and how it can be integrated into a problem-solving... View Details

Keywords: Decision Making; Moral Sensibility; Management Systems; Problems and Challenges; Civil Society or Community

April 2003
Background Note

Sunk Costs: The Plan to Dump the Brent Spar (E)

This case summarizes the technical evaluation methodology Shell employed to evaluate the alternative proposals submitted to its engineering competition for disposing of the Brent Spar. It also details the results of the evaluation process. View Details

Keywords: Natural Environment; Business and Community Relations; Projects; Energy Sources; Energy Industry

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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22 Jun 2020
Working Paper Summaries

Iterative Coordination and Innovation

Keywords: by Sourobh Ghosh and Andy Wu

March 2001 (Revised September 2002)
Case

Merck Latin America (A)

By: Michael Beer and James Weber

Introduces Grey Warner, the vice president of Merck's Latin America region, and his efforts to improve the organizational effectiveness of the region and to introduce a more global business culture and values. Discusses Merck's ethics and values, its Latin American... View Details

Keywords: Organizational Culture; Ethics; Business Processes; Strategic Planning; Change Management; Values and Beliefs; Globalized Firms and Management; Employee Relationship Management; Business Strategy; Government and Politics; Economy; Pharmaceutical Industry; Latin America

04 May 2021
Working Paper Summaries

Accounting for Product Impact in the Telecommunications Industry

Keywords: by George Serafeim and Katie Trinh; Telecommunications

October 2017
Article

The Size of the LGBT Population and the Magnitude of Anti-Gay Sentiment Are Substantially Underestimated

By: Katherine Baldiga Coffman, Lucas C. Coffman and Keith M. Marzilli Ericson

We demonstrate that widely used measures of anti-gay sentiment and the size of the LGBT population are misestimated, likely substantially. In a series of online experiments using a large and diverse but non-representative sample, we compare estimates from the standard... View Details

Keywords: LGBTQ; Social Trends ＆ Culture; Economic Theory; Prejudice; Prejudice and Bias; Diversity; Economics; Demographics

January 2016
Article

Zooming In: A Practical Manual for Identifying Geographic Clusters

By: Juan Alcacer and Minyuan Zhao

This paper takes a close look at the reasons, procedures, and results of cluster identification methods. Despite being a popular research topic in strategy, economics, and sociology, geographic clusters are often studied with little consideration given to the... View Details

Keywords: Mathematical Methods