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- W2072162499 abstract "Official forecasts of mortality depend on assumptions about target values for the future rates of decline in mortality rates. Smooth functions connect the jump-off (base-year) mortality to the level implied by the targets. Three alternative sets of targets are assumed, leading to high, middle, and low forecasts. We show that this process can be closely modeled using simple linear statistical models. These explicit models allow us to analyze the error structure of the forecasts. We show that the current assumption of perfect correlation between errors in different ages, at different forecast years, and for different causes of death, is erroneous. An alternative correlation structure is suggested, and we show how its parameters can be estimated from the past data. The effect of the level of aggregation on the accuracy of mortality forecasts is considered. The geographical focus is on the United States. (SUMMARY IN FRE)" @default.
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- W2072162499 date "1990-07-01" @default.
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- W2072162499 title "Effects of targets and aggregation on the propagation of error in mortality forecasts" @default.
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- W2072162499 doi "https://doi.org/10.1080/08898489009525307" @default.
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