WHEN the odds on an outsider in a four-horse race plummet from 100-1 to 8-1, something noteworthy is happening.

Either someone with pots of money is playing silly beggars or growing numbers of people are finding out something new about the outsider and like what they see.

Given that there have been no reports of silly money bets being placed on Jeremy Corbyn winning the campaign to be Labour Party leader, his shortened odds clearly reflect mass involvement in the contest.