Projection and Forecasting

  • Nathan Keyfitz
  • John A. Beekman
Part of the Problem Books in Mathematics book series (PBM)


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.


Projection Matrix Functional Iteration Successive Moment Ultimate Population Death Curve 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media New York 1984

Authors and Affiliations

  • Nathan Keyfitz
    • 1
  • John A. Beekman
    • 2
  1. 1.Center for Population StudiesHarvard UniversityCambridgeUSA
  2. 2.Department of Mathematical SciencesBall State UniversityMuncieUSA

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