My favoured party – the Greens - do not knowingly or deliberately (and certainly not blatantly) discriminate against women in its processes but it does exist in a social, economic and political context which does discriminate and this does have effects. It is working continually to do better, has a women leader, Natalie Bennett...its ex-leader and its first MP, Caroline Lucas, is a woman...the Greens fielded a good number of women candidates at the last general election (a higher % than other parties I think) compared to the 20% of MPs that are women but the Greens must do better as other political parties and society in general must!! 100% of Green MPs and 50% of Bristol’s Green Councillors are women by the way :) but the party can only choose from those who come forward not from its whole membership. Even in the Greens fewer women come forward because the social context deters and discourages them. There is no inherent reason why they would not come forward.