Non - stop population bloom in Bangladesh

    The Malthusian theory , a well - known theory of population studies , states that whenever human beings obtain more than mere subsistence, their number goes up until everybody is back at the level of subsistence. World population grew at a very high rate since the early 1950s because of higher level of  agricultural productivity during the green revolution period. The population continues to increase as the world is not in a position to return to its initial level of subsistence.Overpopulation is now a problem in many countres in the world and the population control has become a serious issue.
    Among many factors influencing population growth, dependency on children during crisis periods is considered as vital . Taking children is considered as a mode of insurance because parents expect to get financial and non-financial support from their children at their late age.Taking many children is comparable with modern portfolio theory which suggests diversification and options to manage risk from many activities, Under limited financial market without national health insurance and pension schemes, it is diffcult to motivate people to prefer fewer children and to make trade-off between children and alternative insurance. However, economic incentive has much to do because it can drive people to work hard , to produce quality products, to study , to invest, and to save.