In the United Kingdom, successive codes of best practice in corporate governance have highlighted the important role of outside or non-executive directors in ensuring that corporations are run for the benefit of their shareholders. While the first code of best practice, the 1992 Cadbury Report, recommended that there should be a sufficient number of non-executives on the board, the 2003 Higgs Report was much more prescriptive, recommending that there should be a majority of non-executives on the board (excluding the chairman). Similarly, U.S. regulation has been emphasizing the important role of independent or non-executive directors. More specifically, the NYSE and NASDAQ listing rules require companies to have a majority of independent directors. Despite many national regulators pushing for greater non-executive presence on boards, there are few academic studies finding evidence that a greater proportion of non-executives improve firm performance or value. Indeed, most studies do ...