Publications

SSRN

Spring 2016
Article

Net Neutrality: A Fast Lane to Understanding the Tradeoffs

By: Shane Greenstein, Martin Peitz and Tommaso Valletti

The last decade has seen a strident public debate about the principle of "net neutrality." The economic literature has focused on two definitions of net neutrality. The most basic definition of net neutrality is to prohibit payments from content providers to internet... View Details

Keywords: Internet and the Web; Policy

15 May 2007
First Look

First Look: May 15, 2007

economic models predict that they do not systematically differ. With online grocery data, we show that people are decreasingly impatient the further in the future their choices will take effect. In general,... View Details

Keywords: Martha Lagace

24 Feb 2009
First Look

First Look: February 24, 2009

complete, and advertisers can extend this delay both to improve detection of improper partner practices and to punish partners who turn out to be rule-breakers. I capture these relationships in a screening model with delayed payments and... View Details

Keywords: Martha Lagace

January 2022
Teaching Plan

Just Arrived: Integrating Refugees in Sweden

By: Brian Trelstad and Emilie Billaud

Teaching Plan for HBS Case No. 321-040. Just Arrived is an online platform that matches newly-arrived immigrants in Sweden with employment opportunities. As one of several for-profit and non-profit start-ups in Europe that is looking to address the refugee crisis, the... View Details

Keywords: Immigration; Refugees; Employment; Integration; Business Model; Social Entrepreneurship; Growth and Development Strategy; Employment Industry; Sweden; Italy; Germany

15 Jul 2010
Working Paper Summaries

Trade Policy and Firm Boundaries

Keywords: by Laura Alfaro, Paola Conconi, Harald Fadinger & Andrew F. Newman

09 Sep 2011
Working Paper Summaries

Quantity vs. Quality: Exclusion by Platforms with Network Effects

Keywords: by Andrei Hagiu; Technology

Research Summary

Current Research

I am interested in research on various topics in retail operations and supply chain management, including inventory management, product variety, distribution logistics, financial performance of retailers, and linking operational performance to... View Details

The Air War Versus The Ground Game: An Analysis of Multi-Channel Marketing in U.S. Presidential Elections

This study jointly examines the effects of television advertising and field operations in U.S. presidential elections, with the former referred to as the “air war” and the latter as the “ground game.” Specifically, the study focuses on how different campaign... View Details

June 2005 (Revised August 2013)
Case

Amazon.com's European Distribution Strategy

By: Janice Hammond and Claire Chiron

Describes how Amazon's distribution system evolved from the company's inception. In 2003, Amazon Europe must decide how to reconfigure its distribution network in light of expected growth, products proliferation, and geographical expansion in Europe. Examines how... View Details

Keywords: Business Model; Decision Choices and Conditions; Growth and Development; Business or Company Management; Growth and Development Strategy; Supply and Industry; Distribution; Supply Chain; Risk and Uncertainty; Expansion; Web Services Industry

1975
Working Paper

Information, Efficiency and Equilibrium

By: Jerry R. Green

When economic agents receive information over time concerning future events it is likely that prices for commodities whose value is influenced by these events will fluctuate in response to changes in the state of knowledge. If such events occur periodically,... View Details

Keywords: Economics; Supply and Industry; Price

2019
Working Paper

Collusive Investments in Technological Compatibility: Lessons from U.S. Railroads in the Late 19th Century

By: Daniel P. Gross

Collusion is widely condemned for its negative effects on consumer welfare and market efficiency. In this paper, I show that collusion may also in some cases facilitate the creation of unexpected new sources of value. I bring this possibility into focus through the... View Details

Keywords: Collusion; Compatibility; Railroads; Rail Transportation; Standards; Integration; Trade; History; United States

SSRN

October 2019 (Revised January 2020)
Supplement

Dulcie Madden (C)—A Final Chance?

By: Shikhar Ghosh and Shweta Bagai

This is part of a three-case series that follows Dulcie Madden's journey as a founder over five years. Case (A) is about managing growth and cash flow; Case (B) is about the exit decision and conditions on a sale; Case (C) shows Madden dealing with adversity and the... View Details

Keywords: Entrepreneurship; Growth Management; Cash Flow; Success; Failure; Acquisition; Business Model; Technology

July 2003 (Revised March 2004)
Case

XM Satellite Radio (A)

By: David B. Godes and Elie Ofek

XM Satellite Radio is a radically new way to listen to radio. Management must develop a marketing strategy to launch the firm and the category. A crucial aspect of the strategy is to determine which of two business models the company will pursue. Should it focus... View Details

Keywords: Advertising; Business Model; Decision Choices and Conditions; Cost Management; Marketing Channels; Marketing Strategy; Problems and Challenges; Partners and Partnerships; Sales; Competitive Strategy; Communications Industry

September 2009 (Revised February 2011)
Case

Eden McCallum: A Network-Based Consulting Firm (A)

By: Heidi K. Gardner and Robert G. Eccles

Eden McCallum pioneered the network-based ("virtual") consulting firm model in the U.K. Contracting freelance consultants on a per-project basis keeps overheads lean so that Eden McCallum's fees are a fraction of the big firms' rates. Their flexible, low-cost model has... View Details

Keywords: Business Model; Decision Choices and Conditions; Financial Crisis; Growth and Development Strategy; Expansion; Consulting Industry; United Kingdom

07 Jul 2008
Research & Ideas

Innovation Corrupted: How Managers Can Avoid Another Enron

the rewards were great. This initial success prompted Enron to extrapolate its business model to other markets. In 1994, Enron officials started trading wholesale electricity after Congress deregulated the industry; Enron analysts... View Details

Keywords: by Martha Lagace; Energy; Utilities

Article

Reputation When Threats and Transfers Are Available

By: Ernesto Dal Bo, Pedro Dal Bo and Rafael Di Tella

We present a model where a long-run player is allowed to use both money transfers and threats to influence the decisions of a sequence of short-run players. We show that threats might be used credibly (even in arbitrarily short repeated games) by a long-lived player... View Details

Keywords: Crime and Corruption; Decision Choices and Conditions; Game Theory; Mathematical Methods; Interests; Power and Influence; Reputation

Find at Harvard

2011
Working Paper

Price Competition under Multinomial Logit Demand Functions with Random Coefficients

In this paper, we postulate a general class of price competition models with Mixed Multinomial Logit demand functions under affine cost functions. We first characterize the equilibrium behavior of this class of models in the case where each product in the market is... View Details

Keywords: Customers; Income Characteristics; Price; Product Marketing; Mathematical Methods; Competition; Segmentation

January 2008
Background Note

Collateralized Debt Obligations (CDOs)

By: Joshua Coval and Erik Stafford

This lesson integrated Merton's (1974) contingent claims model of debt and equity claims with the CAPM, which allows us to examine the risks and pricing of credit portfolios and the derivative claims issued against them. In particular, this model is used to make... View Details

Keywords: Decision Choices and Conditions; Borrowing and Debt; Credit Derivatives and Swaps; Investment Portfolio; Risk Management

July 2009 (Revised August 2011)
Case

What Happened at Citigroup? (A)

By: Clayton S. Rose and Aldo Sesia

What went wrong at Citigroup? In 1998, the Travelers Group and Citicorp merged to create Citigroup Inc., considered the first true global "financial supermarket" and a business model to be envied, feared, and emulated. By year-end 2006 the firm had a market... View Details

Keywords: Mergers and Acquisitions; Business Model; Decision Choices and Conditions; Globalized Firms and Management; Leadership; Risk Management; Failure; Financial Services Industry