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David et al
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10-31-2001, 09:58 AM
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Re: David et al
An example of increasing concave up would be EV(i)=1, EV(i+1)=1.1, and EV(i+2)=1.3. Thus EV(i)+EV(i+2) [1+1.3=2.3) is GREATER than 2EV(i+1) [2*1.1=2.2).