Professor Frank Murray:

I think a lot of that has to do with terms and conditions, to be honest, and remuneration, as was stated by Frank Keane. There is a quotation in section 5, printed in italics, stating that a key concern in recent years has been income. I think that is a fact. In other jurisdictions, posts that are more difficult to recruit into and more remote generally attract more attractive salaries. That is what happens in parts of the US and Canada.