In fact, at a 4% withdrawal rate, at the end of 35 years the investor would have had almost seven times his initial portfolio value (in nominal terms), and at a 5% withdrawal rate he would have had more than three times his portfolio value.

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My initial downside target was my annual value level at 11, 491.

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An even bigger hit is that the new law locks the artwork's value (for deduction purposes) in at the time of the initial fractional gift.

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By the late 1990s he was overseeing a team of 200 analysts who used decision-tree economics to determine the value of a case at various stages along its life cycle, from initial filing to post-verdict appeal.

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"Customers should consider whether, despite the initial tempting offers, these accounts offer value over time, " says Kevin Mountford, at moneysupermaket.com.

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