De Jong A H
Maandstat Bevolking. 1995 Nov;43(11):6-9.
The author assesses the accuracy of population forecasts in the Netherlands. "Forecast errors may have been caused by either failures of the forecast model or by developments which do not correspond to the expectations. Due to large errors of forecasts made in the 1960s and 1970s a new forecasting model (the cohort-component-model) has been developed and used since. Important changes of trends in fertility, mortality and external migration were incorporated gradually in the hypotheses of successive forecasts. However, short term fluctuations may sometimes lead to incorrect adjustments of long term assumptions." (SUMMARY IN ENG)
作者评估了荷兰人口预测的准确性。“预测误差可能是由预测模型的失败或与预期不符的发展情况导致的。由于20世纪60年代和70年代所做预测存在巨大误差,此后便开发并使用了一种新的预测模型(队列成分模型)。生育率、死亡率和外部移民趋势的重要变化逐渐纳入了连续预测的假设中。然而,短期波动有时可能导致对长期假设的错误调整。” (英文摘要)