A Gompertz fit that fits: Applications to canadian fertility patterns | Zendy

Edmund M. Murphy | Zendy; Dhruva Nagnur | Zendy

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A Gompertz fit that fits: Applications to canadian fertility patterns

Author(s) -

Edmund M. Murphy,

Dhruva Nagnur

Publication year - 1972

Publication title -

demography

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.099

H-Index - 129

eISSN - 1533-7790

pISSN - 0070-3370

DOI - 10.2307/2060544

Subject(s) - gompertz function , fertility , statistics , mathematics , population , function (biology) , econometrics , total fertility rate , demography , research methodology , family planning , sociology , biology , evolutionary biology

In this paper an attempt is made to refine the method of fitting the Gompertz function to the cumulative fertility rates by using iterative techniques. The method is tested with the historical data series for the Canadian population. The demographic implication of the parameters of the Gompertz function as fitted to the fertility distribution is examined, and the usefulness of the method in projecting future fertility trends is studied. The Makeham function is also fitted to the fertility distribution by the same iterative technique, and the relative efficiency of this function is compared with that of the Gompertz.

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