Publications
Publications
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- All HBS Web
(4,029)
- Faculty Publications (649)
- February 2008
- Article
Bandwidth Allocation in Peer-to-Peer File Sharing Networks
By: Albert Creus Mir, Ramon Casadesus-Masanell and Andres Hervas-Drane
We present a model of bandwidth allocation in a stylized peer-to-peer file sharing network. Given an arbitrary population of peers composed of sharers and freeriders, where all peers interconnect to maximize their allocated bandwidth, we derive the expected bandwidth... View Details
- January 2008
- Background Note
Convertible Arbitrage
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand how convertible bonds can be viewed as a portfolio of simpler securities and to introduce an over-the-counter market. The convertible bonds that are available during the simulation are at-the-money and in-the-money so that... View Details
- January 2008
- Background Note
Index Options
By: Joshua Coval and Erik Stafford
The goal of this simulation is to understand the patterns in index option prices that are not predicted by the Black-Scholes model. In particular, the simulation focuses on two properties of options prices. First, at-the-money implied volatilities from index options... View Details
Keywords: Volatility; Stock Options; Investment; Price; Profit; Risk Management; Mathematical Methods
- January 2008 (Revised March 2009)
- Case
Fortress Investment Group
By: Malcolm Baker, Carlos M. Galvez and James Quinn
CEO Wesley Edens and the five Fortress principals are contemplating a move unprecedented in the industry: becoming the first hedge fund and private equity firm to complete an IPO on the New York Stock Exchange (NYSE). This case examines potential reasons for a leading... View Details
- 2008
- Book
Becoming a New Manager
By: Linda A. Hill
You've just been promoted to a managerial position for the first time—congratulations! But beware: the managerial role differs markedly from the individual contributor role. Go into the job with mistaken assumptions about what to expect, and you just may be blindsided... View Details
- December 2007
- Article
Fair (and Not So Fair) Division
By: John W. Pratt
Drawbacks of existing procedures are illustrated and a method of efficient fair division is proposed that avoids them. Given additive participants' utilities, each item is priced at the geometric mean (or some other function) of its two highest valuations. The... View Details
- November 2007
- Background Note
Asset Allocation I
By: Joshua D. Coval, Erik Stafford, Rodrigo Osmo, John Jernigan, Zack Page and Paulo Passoni
The goal of these simulations is to understand the mathematics of mean-variance optimization and the equilibrium pricing of risk if all investors use this rule with common information sets. Simulation A focuses on five to 10 years of monthly sector returns that are... View Details
- November 2007
- Case
Antegren: A Beacon of Hope
By: Joshua D. Margolis, Thomas J. DeLong and Terence Heymann
The CEO of Biogen Idec faces a set of difficult decisions regarding a promising drug for Multiple Sclerosis that is headed for early approval by the FDA. The first in a series focuses on operational decisions triggered by the drive for early approval. Sparks discussion... View Details
- November 2007
- Article
A Model of Consumer Learning for Service Quality and Usage
By: Raghuram Iyengar, Asim Ansari and Sunil Gupta
In many services, e.g., the wireless service industry, consumers choose a service plan based on their expected consumption. In such situations, consumers experience two forms of uncertainty. First, consumers may be uncertain about the quality of their service provider... View Details
- 2007
- Working Paper
Dynamics of Platform Competition: Exploring the Role of Installed Base, Platform Quality and Consumer Expectations
By: Feng Zhu and Marco Iansiti
This paper seeks to answer three questions. First, which drives the success of a platform, installed base, platform quality or consumer expectations? Second, when does a monopoly emerge in a platform-based market? Finally, when is a platform-based market socially... View Details
- 2007
- Working Paper
Irving Fisher, Economic Forecasting, and the Myth of the Business Cycle
A premier economist of the twentieth century and a founder of neoclassical thought, Irving Fisher was also an active participant in the field of economic forecasting. Fisher made theoretical contributions to the understanding of economic fluctuations, popularized the... View Details
- 2007
- Book
When Professionals Have to Lead: A New Model for High Performance
By: Thomas J. DeLong, John J. Gabarro and Robert Lees
For too long, professional services firms (PSFs) have relied on the "producer-manager" model, which works well in uncomplicated business environments. However, today's managing directors must balance conflicting roles, more demanding clients, tougher competitors, and... View Details
- October 2007 (Revised February 2008)
- Background Note
Evaluating M&A Deals: Accretion vs. Dilution of Earnings-per-share
When discussing the pros and cons of an acquisition, practitioners often talk about the impact of the deal on the buyer's earnings-per-share (eps). An acquisition is said to be "accretive" if the buyer's eps goes up post-deal; it is "dilutive" if the buyer's eps goes... View Details
- October 2007
- Article
The Effectiveness of Pre-Release Advertising for Motion Pictures: An Empirical Investigation Using a Simulated Market
By: Anita Elberse and Bharat N. Anand
One of the most visible and publicized trends in the movie industry is the escalation in movie advertising expenditures over time. Yet, the returns to movie advertising are poorly understood. The main reason is that disentangling the causal effect of advertising on... View Details
- October 2007
- Article
The Power of Stars: Do Star Actors Drive the Success of Movies?
By: Anita Elberse
Is the involvement of star actors critical to the success of motion pictures? Film studios, which they regularly pay multimillion-dollar fees to star actors, seem driven by that belief. I shed light on the returns on this investment using an event study that considers... View Details
- September 2007
- Case
Dice-K: The Hundred (Plus) Million Dollar Man
Describes the efforts made by the Boston Red Sox to sign superstar Japanese pitcher Daisuke (Dice-K) Matsuzaka within the context of the team's attempts to keep pace with longtime rival, the New York Yankees. In late 2006, Dice-K is viewed as the prize of the free... View Details
- 2007
- Working Paper
Fair (and Not So Fair) Division
By: John W. Pratt
Drawbacks of existing procedures are illustrated and a method of efficient fair division is proposed that avoids them. Given additive participants' utilities, each item is priced at the geometric mean (or some other function) of its two highest valuations. The... View Details
- Article
Gross National Happiness As an Answer to the Easterlin Paradox?
By: Rafael Di Tella and Robert MacCulloch
The Easterlin Paradox refers to the fact that happiness data are typically stationary in spite of considerable increases in income. This amounts to a rejection of the hypothesis that current income is the only argument in the utility function. We find that the... View Details
- July 2007
- Article
Earnings Announcement Premia and Limits to Arbitrage
By: Daniel Cohen, Aiyesha Dey, Thomas Lys and Shyam Sunder
We examine the factors underlying the presence of earnings announcement premia. We find that the premia persist beyond the sample period examined in prior studies (ending in 1988), although they decline in magnitude after 1988. Further, premia are lower on the expected... View Details
- June 2007 (Revised January 2008)
- Case
The Vanguard Group, Inc. in 2006 and Target Retirement Funds
By: Luis M. Viceira
The Vanguard Group is one of the largest asset managers in the U.S., with over $1 trillion in assets, ninety percent of which are mutual fund assets, and more than 12,000 employees at year-end 2006. Vanguard has built a strong reputation as the manager of reference for... View Details