Are punters being over-optimistic about Cameron’s chances?
Introducing the PBC Average of Weighted Polls With David Cameron set to celebrate his first year as Tory leader on Wednesday we thought it would be a good time to launch PBC’s new measure of polling performance – the average of weighted polls. The numbers featured in the chart are from those firms which employ some system to ensure that their samples are not skewed by their methodology and are also members of the British Polling Council. The latest Average,…