Diolch yn fawr, Jane. Obviously, it goes back to the purpose of the Bill, to create a more effective Senedd, reflecting the gender make-up of the population—that's the key purpose—leading to better and more effective scrutiny and decision making. I think it's important if I can make that point here—it's about a more effective legislature. So, the vertical and horizontal placement rules have been designed to ensure that women are placed in winnable positions on lists, because this is crucially important, and links to the Senedd reforms overall, but it still allows parties some flexibility in compiling their lists. And I've commented on that in terms of the zipping opportunities. It is a model that lends itself to best reaching our aim of 50 per cent women in the Senedd, which we had back in 2003, but we're not going to be there unless we have some effective measure.
So, we've looked at that starting point from the Senedd, and what we need to do to get that 50 per cent representation. I just remember that 31 per cent of candidates in the last election were women. We've got to have this process in order to help us. So, I think the issues around the horizontal and the ways in which we're doing it—. Of course, I've already mentioned the fact that we've had many reports and evidence provided. The expert panel had recommended that 50:50 model with zipping and balance across the candidates in the first position. The special purpose committee report recommended legislative quotas with integrated zipping and enforcement via returning officers, and linked to the broader Senedd reform plans for a proportional representation closed list system, with multi-Member constituencies.
Now, we have looked at international experience and evidence on key features of a successful quota model. It's pointed to the need for specific elements: a threshold of 50 per cent of placement criteria, including rules about women being included at the top of the list, and an effective enforcement mechanism. This is something where we can learn from other countries, but also develop our own model. So, it's a minimum 50 per cent model that we've got. I've mentioned the fact it doesn't prevent a zipping approach either.
This is about how we can ensure that we reflect the percentage of women and girls in the Welsh population in terms of the way that we move it forward. So, by requiring that a woman follows any candidate who is not a woman on the list, the rules make sure that women are, at the very least, placed in every other position on a list. But if a list has a woman directly after another woman on a list, I would say that would also be compliant as well. And integration within the closed list system—people will be voting for a list of named candidates a political party puts forward, and people will be able to see the names of the candidates. So, I think—. The horizontal rule is that women proportionately will be in more winnable positions, towards the top of the list, because the lower down a list a candidate is, the less likely it will be generally that the candidate is returned. In the closed list system, seats are allocated in the order of the list, so candidates that are not placed at or near the top, they have less chance of being elected.
Now, many of us women here in this room will know how often we've been down at the bottom of a list, not at the top of the list. We can have lists and we can have our new arrangements, but unless we have this engagement through the gender quotas—. That design ensures that women are not placed in less winnable positions. And without a horizontal rule, a party could effectively meet the vertical requirements but not actually elect any women if they have men at the top of the lists and only win one seat at each constituency.
Now, I've probably gone into many other points of clarification, but I hope that's helpful.