Birth Interval Approach To Estimate the Total Fertility Rate of Migrant Couples

The total fertility rate is generally calculated from the number of births to women by their age, and thus by the age specific fertility rates (ASFR), which is mostly based on the information of ASFR for non migrant couples or for the mixture of migrant and non-migrant couples both. This article gives a simple procedure to estimate the Total Fertility Rate (TFR) of migrated couples by using the information on birth interval. This study gives a picture of how the temporary separation of couples where males leaving their wives at home due to the migration affects fertility through a theoretical procedure proposed under reasonable circumstances. The proposed procedure has been applied to an observed set of data relating to migrants from a rural area.