“…Among the few empirical studies which are not descriptive, most rely on an economic approach based on an optimal contracting perspective of agency theory in a single institutional setting 1 . Those studies have mainly focused on the adoption of performance-based remuneration to reduce the potentially misaligned interest between shareholders and INEDs (e.g., Hempel and Fay, 1994;Boyd, 1996;Bryan, Hwang, Klein & Lilien , 2000;Cordeiro et al, 2000) or the adoption of meeting fees to provide INEDs with an incentive to exert more effort (Hempel and Fay 1994;Bryan et al 2000;Brick, Palmon & Waldet, 2006;Farrell, Friesen & Hersch, 2008;Adams and Ferreira 2008). A more comprehensive agency theory framework was adopted by Cordeiro et al (2000), Andreas et al (2012) and Marchetti & Stefanelli (2009).…”