Hi Ostrich,
I too am looking for this, If it was on BBC Radio 4, you can listen to their archives at:
Radio 4 - The Today Programme
Do you know what date it was on?
Also, if it was on money box, google shows transcripts at:
news.bbc.co.uk/1/shared/spl/hi/programmes/money_box/transcripts/
Post a reply if you have any more info