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Show Results For
- All HBS Web
(1,379)
- News (188)
- Research (1,021)
- Events (9)
- Multimedia (2)
- Faculty Publications (625)
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- 2009
- Working Paper
Running Out of Numbers: Scarcity of IP Addresses and What to Do About It
By: Benjamin Edelman
The Internet's current numbering system is nearing exhaustion: Existing protocols allow only a finite set of computer numbers ("IP addresses"), and central authorities will soon deplete their supply. I evaluate a series of possible responses to this shortage: Sharing... View Details
Keywords: Policy; Resource Allocation; Market Transactions; Internet; Technology Networks; Technology Industry; Telecommunications Industry
Edelman, Benjamin. "Running Out of Numbers: Scarcity of IP Addresses and What to Do About It." Harvard Business School Working Paper, No. 09-091, February 2009. (Revised March 2009.)
- June 2012
- Response
Solution to Exchanges 10.2 Puzzle: Borrowing in the Limit as Our Nerdiness Goes to Infinity
By: Ran I. Shorrer
This is a solution to the editor's puzzle from issue 10.2 of SIGecom Exchanges [Reeves 2011]. The puzzle asks to determine a point in time such that a lump sum payment of $S will be equivalent to a continuous stream of infinitesimal payments totaling $S, spread evenly... View Details
Shorrer, Ran I. "Solution to Exchanges 10.2 Puzzle: Borrowing in the Limit as Our Nerdiness Goes to Infinity." ACM SIGecom Exchanges 11, no. 1 (June 2012): 39–41.
- August 2008 (Revised April 2012)
- Supplement
Real Property Negotiation Game (B): Seller, Raleigh Commons
By: Arthur I Segel and John H. Vogel, Jr.
The Real Property Negotiation Game simulates the experience negotiating the sale, purchase, or financing of a property. The class competes as either a lender, buyer, or one of two groups of sellers, Raleigh, North Carolina and Las Vegas, Nevada. The seller case,... View Details
Segel, Arthur I., and John H. Vogel, Jr. "Real Property Negotiation Game (B): Seller, Raleigh Commons." Harvard Business School Supplement 209-036, August 2008. (Revised April 2012.)
- November 2024
- Supplement
Epic Games: Nineteen Eighty-Fortnite (B)
By: Andy Wu and Ronald Wang
In a significant ruling on April 24, 2023, the U.S. Court of Appeals for the Ninth Circuit upheld portions of the district court’s decision against Epic Games back in September 2021. However, Apple’s anti-steering provisions, which restricted app developers from... View Details
- October 2005 (Revised January 2009)
- Background Note
Corporate Valuation and Market Multiples
By: Timothy A. Luehrman
Provides a basic introduction to the use of market multiples for business valuation. Explains the method's reliance on the Law of One Price, sets forth the basic steps for using the method, and reviews some practical issues arising in its application. View Details
Luehrman, Timothy A. "Corporate Valuation and Market Multiples." Harvard Business School Background Note 206-039, October 2005. (Revised January 2009.)
- May 2013
- Article
Guidance from ARIN on Legal Aspects of the Transfer of Internet Protocol Numbers
By: Benjamin Edelman and Stephen Ryan
Every device connected to the global Internet needs a numeric identifier, an "Internet Protocol" address ("IP address"). The Internet's continued growth presents a challenge: most IP addresses have already been assigned to networks and organizations, leaving few left... View Details
Keywords: IP Addresses; Regulation; Market Design; Market Transactions; Rights; Contracts; Internet; Technology Adoption; Technology Networks
Edelman, Benjamin, and Stephen Ryan. "Guidance from ARIN on Legal Aspects of the Transfer of Internet Protocol Numbers." Business Law Today (May 2013).
- 2008
- Working Paper
Structural Closure and Exposure: Market Reactions to Announcements of Acquisitions and Divestitures
By: Mikolaj Jan Piskorski and Nitin Nohria
This paper develops an exchange-network perspective on corporate diversification and proposes two measures of corporate scope: structural closure and structural exposure. Structural closure focuses on exchanges of goods and services inside the firm... View Details
- 2007
- Other Unpublished Work
Round Numbers and Security Returns
By: Edward Johnson, Nicole Bastian Johnson and Devin M. Shanthikumar
We document consistent differences in daily stock returns related to round numbers. In particular, we examine returns following previous day closing prices that are just above or just below round number benchmarks. We find, for both one-digit, two-digit and three-digit... View Details
- August 2009
- Article
Rewriting History
By: Alexander Ljungqvist, Christopher J. Malloy and Felicia Marston
We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594... View Details
Keywords: Competency and Skills; Stocks; Profit; Market Transactions; Reputation; Financial Services Industry
Ljungqvist, Alexander, Christopher J. Malloy, and Felicia Marston. "Rewriting History." Journal of Finance 64, no. 4 (August 2009): 1935–1960.
- 2008
- Working Paper
Rewriting History
By: Alexander Ljungqvist, Christopher J. Malloy and Felicia Marston
We document widespread ex post changes to the historical contents of the I/B/E/S analyst stock recommendations database. Across a sequence of seven downloads of the entire I/B/E/S recommendations database, obtained between 2000 and 2007, we find that between 6,594... View Details
- 24 Jul 2014
- Op-Ed
Reform Tax Law to Keep US Firms at Home
I am a Professor of Finance at Harvard Business School, a Professor of Law at Harvard Law School, and a Research Associate of the National Bureau of Economic Research. Recent merger transactions highlight long-simmering problems in the US... View Details
- 11 Apr 2007
- Research & Ideas
Adding Time to Activity-Based Costing
1990s, many companies introduced ERP systems that captured data at the transaction level. It was natural to think how we could modify ABC systems to benefit from the ready availability of transactional data... View Details
Keywords: by Sarah Jane Gilbert
- September 2008 (Revised October 2009)
- Background Note
The Carbon Market
By: Andre F. Perold, Forest L. Reinhardt and Mikell Hyman
The carbon market has emerged in response to concerns about global climate change. This note characterizes the market in 2008, describing each segment and how it operates. View Details
Perold, Andre F., Forest L. Reinhardt, and Mikell Hyman. "The Carbon Market." Harvard Business School Background Note 209-064, September 2008. (Revised October 2009.)
- 11 Feb 2015
- Research & Ideas
Politicians Benefited From Using Toxic Loans
opting for the short-term benefits in spite of the risks?” "There is no doubt the transactions were very risky, as interest rates on these loans frequently exceeded 20 percent," says Boris Vallée, an assistant professor in the Finance... View Details
- 18 Feb 2015
- First Look
First Look: February 18
Taxation Without Information: Deterrence and Self-Enforcement in the Value Added Tax By: Pomeranz, Dina Abstract—Claims that the VAT facilitates tax enforcement by generating paper trails on transactions between firms contributed to... View Details
Keywords: Sean Silverthorne
- 25 Jul 2005
- Research & Ideas
An Organization Your Customers Understand
becomes confused about its purpose and whom it is designed to serve. In popular marketing textbooks, students are taught that a customer is any person or organizational unit that plays a role in the consummation of a transaction with the... View Details
Keywords: by Robert Simons
- March 2009
- Article
Trading Restrictions and Stock Prices
By: Robin Greenwood
Firms can manipulate their stock price by limiting the ability of their investors to sell. I examine a series of corporate events in Japan in which firms actively reduced their float—the fraction of shares available to trade—for periods of one to three months, locking... View Details
Greenwood, Robin. "Trading Restrictions and Stock Prices." Review of Financial Studies 22, no. 3 (March 2009): 509–539.
- 18 Jul 2006
- First Look
First Look: July 18, 2006
than $100 million. These transactions are large enough to require the help of a financial adviser and attract both strategic and financial bidders. The sale process described is that of a private auction, including a confidential... View Details
Keywords: Sean Silverthorne
- October 2007
- Article
The Art of Designing Markets
By: Alvin E. Roth
Traditionally, markets have been viewed as simply the confluence of supply and demand. But to function properly, they must be able to attract a sufficient number of buyers and sellers, induce participants to make their preferences clear, and overcome congestion by... View Details
Keywords: Market Design; Market Participation; Market Transactions; Information Technology; Internet and the Web
Roth, Alvin E. "The Art of Designing Markets." Harvard Business Review 85, no. 10 (October 2007): 118–126.
- 08 Jan 2001
- What Do You Think?
Have We Extended the Boundaries of the Firm Too Far?
quite high at the time, thus providing a justification for the vertical integration of large organizations) set limits on behaviors that we refer to today as partnering, the forming of alliances, and outsourcing. Transaction costs... View Details
Keywords: by James Heskett