The arithmetic mean expectation model is not able to measure the income of portfolio investment correctly as bonds are a kind of successive investment, but the geometric average expectation can measure the income of successive investment.
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- 摘要由于證券是一種連續投資，算術(shù)平均收益率并不能完全反映投資的收益情況，而幾何平均期望收益率才能反映連續投資的實(shí)際收益。
