Mostly it is because they are where tactical voting happens, and this is hard to predict.
Whether or not experimental drugs will come to Pfizer's rescue seems hard to predict.
The oddities of Japan's party system make it hard to predict what this means.
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The effects of an interest-rate rise in such times would be unusually hard to predict.
But whether this will mean further gains for Golden Dawn is hard to predict, Gemenis said.
The eventual size and shape of a re-regulated, rethought Wall Street is hard to predict.
Ms. OLIKER: You know, right now, with it stalled, I think it's hard to predict.
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Because future prices are hard to predict, this yield measurement is only an estimation of return.
Industry analysts say it is hard to predict how all this will turn out.
It had always been hard to predict how a college quarterback would fare in the pros.
The impact of a long-proposed but yet-to-be-implemented national goods-and-sales tax is hard to predict.
The complications for this appropriate adult aren't hard to predict, but it hardly matters.
It is hard to predict where Bird's music will take him and his fans next.
More importantly, it is hard to predict if these long-term commitments will work accordingly when disaster strikes.
One philosophy was of a dynamic future that embraces change and growth but is hard to predict.
But questions about whether the court could properly hear the case made it hard to predict any outcome.
It's hard to predict another industry-wide recession, with oil prices still high and drilling activity ramping up worldwide.
What this will look like in practices is a bit hard to predict, but we will know shortly.
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The ramifications are hard to predict, but have in prospect much to fear.
What happens next is hard to predict, not least because of Enron's opaqueness.
Just as the benefits of a new technology can be hard to predict, so too are its unexpected drawbacks.
And so it's very hard to predict exactly what the long rate will do, even when the Fed is cutting.
Still, political analysts say it's hard to predict her for a new health challenge will affect her husband's presidential hopes.
The weather and the stockmarket are chaotic in this sense, which is what makes their behaviours so hard to predict.
Forecasters have said changing wind patterns made it hard to predict the cloud's exact path and concentrations would vary between regions.
According to a survey by Paola Sapienza and Luigi Zingales, effectively all economists agreed that stock prices are hard to predict.
Whether the regime would react to such pressures by reforming, lashing out or collapsing (if not overthrown) is hard to predict.
Steve Landefeld, BEA director, said it was hard to predict the overall outcome given the mixture of new methodology and data updates.
One reason is simply that the public finances are hard to predict.
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