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Investors looking to manage their portfolios have been paying close attention to interest rates, which are at historic lows. Will they stay there? Or are interest rates bound to rise?

As part of our investment series with OppenheimerFunds, we polled Business Insider readers to see what they thought. It turns out that 65% of our readers think interest rates will rise in the next two to three years.

But OppenheimerFunds Senior Economist Brian Levitt has a different perspective, and he provides three key reasons for why interest rates will stay low for the long term. Watch the video above to find out what they are.

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