Elections ballots, before shipping to local municipalities, 2015
Elections ballots, before shipping to local municipalities, 2015Flash90

Polling stations open one week from today, but 16% of eligible voters are still undecided, according to the latest pre-elections survey.

The survey, from Army Radio's "Good Morning Israel" show by the Shiluv company - notes that 16% of the population amounts to 19 mandates - enough to be a deal-breaker in the race between right and left for the 20th Knesset. 

Women comprise nearly 2/3 of undecided voters, according to the poll, whereas just 1/3 are men.

53% of the undecided voters are over the age of 40; just 9% are under the age of 22. A majority, some 63%, define themselves as "secular." 

The issue most affecting voter decisions is Israel's economy, including the housing and cost of living crises, as well as health and education. 56% of voters polled said these issues have helped shape their voter preferences. 

By contrast, just 29% of voters said the Iran nuclear talks or Palestinian state issues affect their decision-making; 12% chose issues between religion and state. 

Overall, the margin of "undecided" voters is still narrowing, however, as some 21% of voters were still on the fence about their choice two weeks ago.