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Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission.JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.Academy of Management is collaborating with JSTOR to digitize, preserve and extend access to The Academy of Management Review.

No abstract

Agency theory argues that shareholder interests require protection by separation of incumbency of rôles of board chair and CEO. Stewardship theory argues shareholder interests are maximised by shared incumbency of these rôles. Results of an empirical test fail to support agency theory and provide some support for stewardship theory.