First of all, Derek and I are not the lead officials for the carbon pricing system. That being said, when the pricing system was developed, a lot of lessons learned were undertaken. Also, as we know, carbon pricing is a worldwide-recognized instrument to effectively drive greenhouse gas emission reduction.
Also, the pricing system provides incentives through a cost-neutral system of returning proceeds back to households and small and medium enterprises. Therefore, this is a very effective system. That we know.
That being said, I regret that I do not work on this file as intimately as other colleagues; therefore, this is the extent to which I can comment on the instrument.