What is embryonic stem cell research and how is it performed?
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The most important factor is how it has performed over time.
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However, it is important to compare how similar ETFs have performed versus each other.
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Though the sample size of nine annual periods is statistically small, it is fascinating to see how well The Prudent Speculator has performed with returns north of 30% on average during the supposedly difficult first year!
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It is a pretty close match to how the Hang Seng actually performed.
CNN: What fortune will the Year of the Snake bring you?
The idea is to determine how a strategy would have performed if it had actually been in existence in the past.
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To date it has played 55 games but IBM is keeping mum about how well Watson performed.
BBC: IBM supercomputer set for Jeopardy quiz show showdown
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