RBS currency analysts have said selling sterling against the US dollar represents a "top 2013 trade" as the pound rises to a ten-week high.
The bank's FX team are concerned sterling's relative safe haven status could come under threat next year, as deteriorating public finances and productivity performance and falling credit ratings hit home....
£44bn committed to sector over five years
Key points from Hammond's 'balanced' Budget
No stamp duty on homes under £300,000
Second Budget this year
Rises in-line with CPI