The document discusses critical mass theory and its application to women on corporate boards of directors. It defines critical mass theory as suggesting that the nature of group interactions depends on minority group size, and that a threshold exists where the minority is able to influence the larger group. Research presented finds that three individuals generally constitutes a critical mass and can influence group dynamics. As it applies to boards, studies indicate that having at least three women directors allows for a critical mass where the women are better able to participate and influence discussions. The document also discusses how Norway achieved a critical mass of women on boards through quota legislation requiring at least 40% representation of both genders.