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Evidence on competitive advantage and superior stock market performance
Author(s) -
Gjerde Øystein,
Knivsflå Kjell,
Sættem Frode
Publication year - 2010
Publication title -
managerial and decision economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.288
H-Index - 51
eISSN - 1099-1468
pISSN - 0143-6570
DOI - 10.1002/mde.1488
Subject(s) - competitive advantage , industrial organization , business , resource (disambiguation) , stock exchange , stock (firearms) , economics , marketing , computer science , finance , mechanical engineering , computer network , engineering
This article analyzes the value‐relevance of industry‐based and resource‐based competitive advantage in a large sample of firms listed on the Oslo Stock Exchange. We measure competitive advantage by a single variable and perform a new decomposition into its underlying sources. In 1986–2005, the industry‐based and the resource‐based competitive advantage explain more than 20% of abnormal stock market returns, accumulated over 5 years. The resource‐based advantage is almost 4 times more important than the industry‐based advantage. Differences in both the return and the risk capability of firms' net assets relative to their industry peers are significant parts of the resource‐based advantage, estimated at 60 and 40%, respectively. Copyright © 2009 John Wiley & Sons, Ltd.

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