Calls to dismantle the country's old boys' club have become louder after women were found to make up nearly half the country's directors associated with the best results for shareholders, despite occupying only a fifth of all boardroom seats.

The findings came after nearly 2000 board appointments, and 10 years of share returns performance of 364 NZX-listed companies, were analysed as part of the Herald's "Directors of the Decade" project.

The project identified and ranked 33 professional directors who had four or more public appointments over the period. Women made up four of the nine directors associated with high shareholder


METHOD: How the numbers were crunched