Thank you very much for that question, and it's a fair one. I'm lucky I have my colleague Aled here, since he led a lot of this work.
In 2018 we published a fairly extensive study on house price escalation. To my knowledge, that is probably one of the first pieces of work that really identified supply, or the lack of supply, as a key determinant of the escalation in house prices.
Aled, I don't know if you wanted to say more about that.