Dec 07 2010
Scribe Post: Factors affecting CBR/CDR
Monday in class we learned about factors that affect the Crude Birth Rate (CBR) and the Crude Death Rate (CDR). First, however, we viewed a poulation map of the world which is as follows.
The larger the country the larger the total population. We then reviewed the equation for AGR, also called the Rate of Natural Increase, which is (CBR-CDR)/10.
The Factors which affect CBR/ Total Rate of Fertility (TRF)/ Replacement Fertility (RF)
1. As value of kids as labor increases the number of births also increase. The more reliant each parent is on the kids to work for them as labor the more likely it is they produce more offspring for greater efficency.
2. As cost of raising kids increase the number of births decrease.
3. As availability of legal abortion increases the number of births decrease.
4. As the availability of birth control increases the number of births decreases.
5. As infant mortality rate increases the number of births also increases.
6. As the availability of a Pension System increases the number of births decreases.
7. Availability of education/opportunities for women increases the number of births decrease.
8. As the average age of marriage increases the number of births decreases.
9. As urbanization increases the number of births decrease.
10. Religon/Tradition/Gov is the wild card, could increase or decrease the number of births
Factors affecting CDR
1. As medicines increase the number of deaths decrease.
2. As sanitation increases the number of deaths decrease.
3. As conflicts increase the number of deaths also increase (War, etc.)
These are the main 3 for CDR but their are others such as food, natural disastor, etc.