For those interested in a series of authoritative research papers providing a wide range of content on corporate governance, consider looking at the information available at the Harvard John M Olin Discussion Paper Series.  It is available at http://www.law.Harvard.edu/programs/olin_center

The Program on Corporate Governance, operating within the John M. Olin Center for Law, Economics, and Business, seeks to facilitate research and scholarship about corporate governance.

One of the authors spoke at a meeting I attended, and he clearly is an expert.