Abstract
Statistical data regarding population, like all other data, refer to the past; action and policy require knowledge of the future. What counts is not what the population has been, but what it will be. The cost of an annuity taken out today depends on future not on past mortality. Whatever continuities exist between past and future must be discovered and exploited if decisions regarding the future are to be soundly based, from the price of an annuity to the location of a retail store.
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© 1984 Springer Science+Business Media New York
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Keyfitz, N., Beekman, J.A. (1984). Projection and Forecasting. In: Demography Through Problems. Problem Books in Mathematics. Springer, New York, NY. https://doi.org/10.1007/978-1-4757-1843-0_5
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DOI: https://doi.org/10.1007/978-1-4757-1843-0_5
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4419-2817-7
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