Thursday, April 15, 2010

The definition of replacment ratio?

vital statistics

The definition of replacment ratio?
It is a demographic indicator used to compare the size of a generation to the previous one. If it's below 100%, the population is diminishing, if it's 100%, it is stable, if it's above, it's increasing.





"The Birth Replacement Ratio is a replacement ratio that compares the period number of births to the mean size of the mothers’ generation at birth. In contrastwith the Net Reproduction Ratio, differences between the Total Fertility Rate (TFR) and the BRR are not due to period mortality. They reflect cohort mortality, cohort out-migration and mothers’ immigration."


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