Publications

November 2000
Case

FireDrop

By: William A. Sahlman and Michael J. Roberts

Describes the evolution of FireDrop, a new venture-backed company that has developed a new platform for e-mail communication. The FireDrop application--called a Zaplet--allows for e-mails to be continually updated so they are current when read (rather than when sent).... View Details

Keywords: Business Model; Internet and the Web; Communication Technology; Venture Capital; Technological Innovation; Information Technology Industry

2023
Working Paper

Causal Interpretation of Structural IV Estimands

By: Isaiah Andrews, Nano Barahona, Matthew Gentzkow, Ashesh Rambachan and Jesse M. Shapiro

We study the causal interpretation of instrumental variables (IV) estimands of nonlinear, multivariate structural models with respect to rich forms of model misspecification. We focus on guaranteeing that the researcher's estimator is sharp zero consistent, meaning... View Details

Keywords: Mathematical Methods

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August 2018
Article

Extrapolation and Bubbles

By: Nicholas Barberis, Robin Greenwood, Lawrence Jin and Andrei Shleifer

We present an extrapolative model of bubbles. In the model, many investors form their demand for a risky asset by weighing two signals: an average of the asset’s past price changes and the asset’s degree of overvaluation. The two signals are in conflict, and investors... View Details

Keywords: Bubble; Extrapolation; Volume; Price Bubble; Mathematical Methods

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2024
Working Paper

The Value of Open Source Software

By: Manuel Hoffmann, Frank Nagle and Yanuo Zhou

The value of a non-pecuniary (free) product is inherently difficult to assess. A pervasive example is open source software (OSS), a global public good that plays a vital role in the economy and is foundational for most technology we use today. However, it is... View Details

Keywords: Valuation; Open Source Distribution; Applications and Software

March 2002 (Revised July 2004)
Case

RWE and the Proposal for a German Electricity Regulator

In April 2001, Dietmar Kuhnt, CEO of the German energy giant RWE, had to make a decision that would affect his company's future. Profits in the electricity sector depended heavily on regulatory rules that influenced industry structure and pricing. RWE had emerged... View Details

Keywords: Energy Generation; Governance Compliance; Business Strategy; Energy Industry; Germany

January 2016 (Revised November 2018)
Case

Match Next: Next Generation Middle School?

By: John J-H Kim and Daniel Goldberg

This case is set in 2015 as a team at Match Education, a high performing charter middle school in Boston, explores new staffing and technology approaches in their quest to obtain what they term "jaw dropping" results. The team hopes to test and model for other schools... View Details

Keywords: General Management; K-12; Charter Schools; Public Schools; Edtech; Education; Information Technology; Management; Public Sector; Entrepreneurship; Education Industry; Boston

14 Feb 2023
HBS Case

Is Sweden Still 'Sweden'? A Liberal Utopia Grapples with an Identity Crisis

Swedish capitalism is like.” Could this lead to the end of the high-tax “Swedish model” that like-minded nations have come to admire? Harvard Business School Professor Debora Spar, who has analyzed Sweden extensively, says no, the Swedish View Details

Keywords: by Lane Lambert

2024
Working Paper

Consumer Inertia and Market Power

By: Alexander MacKay and Marc Remer

We study the pricing decisions of firms in the presence of consumer inertia. Inertia, which can arise from habit formation, brand loyalty, and switching costs, generates dynamic pricing incentives. These incentives mediate the impact of competition on market power in... View Details

Keywords: Consumer Inertia; Market Power; Dynamic Competition; Demand Estimation; Consumer Behavior; Markets; Performance; Competition; Price

SSRN

2008
Working Paper

'Fair Marriages:' An Impossibility

By: Bettina-Elisabeth Klaus

For the classical marriage model (introduced in Gale and Shapley, 1962) efficiency and envy-freeness are not always compatible, i.e., fair matchings do not always exist. However, for many allocation of indivisible goods models (see Velez, 2008, and references therein),... View Details

Keywords: Marketplace Matching; Fairness

2019
Working Paper

Large-Scale Demand Estimation with Search Data

By: Tomomichi Amano, Andrew Rhodes and Stephan Seiler

In many online markets, traditional methods of demand estimation are difficult to implement because assortments are very large and individual products are sold infrequently. At the same time, data on consumer search (i.e., browsing) behavior are often available and are... View Details

Keywords: High-dimensional Data; Demand Estimation; Consideration Sets; Consumer Search

SSRN

April 2018
Teaching Note

InsideSales.com (A) and (B)

By: Frank Cespedes

Teaching Note for HBS Nos. 817-018 and 817-042. InsideSales.com (ISC) has been successful selling its software to small- and medium-sized businesses (SMB). But for various reasons, the founders see “the next stage of growth” as building a scalable sales and service... View Details

Keywords: Corporate Entrepreneurship; Organizational Change and Adaptation; Organizational Design; Customer Relationship Management; Growth Management; Marketing Strategy; Salesforce Management; Talent and Talent Management; Technology Industry

13 Apr 2007
Working Paper Summaries

Incorporating Price and Inventory Endogeneity in Firm-Level Sales Forecasting

Keywords: by Saravanan Kesavan, Vishal Gaur & Ananth Raman; Retail

06 Oct 2020
Blog Post

2+2 Where Are They Now Spotlight: Curtis Wu (MBA 2018)

Charles Cooney, taught me that the hardest problems often occur at interfaces between multiple sectors. The 2+2 program offered me a way to learn the language and tools I would need to tackle tough problems at the interface of science and... View Details

January 2020
Article

Rethinking Measurement of Pay Disparity and Its Relation to Firm Performance

By: Ethan Rouen

I develop measures of firm-level pay disparity and examine their relation to firm performance. Using comprehensive compensation data for a large sample of firms, I find no statistically significant relation between the ratio of CEO-to-mean employee compensation and... View Details

Keywords: Pay Disparity; Pay Ratio; CEO Pay Ratio; Income Inequality; Executive Compensation; Employees; Wages; Equality and Inequality; Business Ventures; Performance

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2008
Chapter

Public Action for Public Goods: Theory and Evidence

By: Abhijit Banerjee, Lakshmi Iyer and Rohini Somanathan

This chapter focuses on the relationship between public action and access to public goods. It begins by developing a simple model of collective action which is intended to capture the various mechanisms that are discussed in the theoretical literature on collective... View Details

Keywords: Policy; Quality; Groups and Teams; Human Needs; Poverty; Welfare or Wellbeing; Public Administration Industry

09 Nov 2015
HBS Seminar

Paul Oyer, Fred H. Merrill Professor of Economics, Graduate School of Business, Stanford University

13 Oct 2006
Working Paper Summaries

Pricing Liquidity: The Quantity Structure of Immediacy Prices

Keywords: by George C. Chacko, Jakub W. Jurek & Erik Stafford

12 PM – 1 PM EDT, 28 Sep 2016
Webinars: Career

5 Happiness Hacks That Drive Productivity, Sales, and Creativity

According to Harvard Business Review, happy people are 37% more productive, have 31% higher sales, and are three times more creative than their peers. In this webinar, Neil Pasricha (MBA 2007) provides models to create lasting happiness including building diverse... View Details

March 2021 (Revised April 2021)
Case

Wirecard: The Downfall of a German Fintech Star

By: Jonas Heese, Charles C.Y. Wang and Tonia Labruyere

Wirecard was a German fintech company, member of the DAX30, that provided payment processing and related services. Wirecard had enjoyed large growth rates over the years and most investors and analysts were enthusiastic about the company's prospects. Wirecard's... View Details

Keywords: Accounting Fraud; Scandal; Accounting Audits; Accounting; Financial Reporting; Financial Institutions; Financial Markets; Corporate Governance; Governance Compliance; Corporate Accountability; Governance Controls; Financial Services Industry; Germany; Singapore; Dubai