I would like to know the English reason for the decline in birth rate?

The birth rate decreases.

The birth rate increases - crude birth rate

CBR increases The birth rate decreases - crude birth rate

CBR decreases Picture reference: zh. *** /skins-1.5/mon/images/magnify-clip Birth rates in various countries around the world In demography, the definition of birth rate (crude birth rate

CBR) is every year, every The number of new students among 1,000 people can be expressed mathematically as: Image reference: upload.wikimedia/math/d/6/c/d6c7042c341c4c718f7c7171b25a67c8 ("n" represents the number of new students in that year

"p "The total population in that year.) The birth rate in a certain year minus the death rate is the natural population increase rate in that year ("natural" means not including the immigrant population). Another fertility rate indicator is also often used: the total fertility rate - the average number of children per woman during the childbearing years.

Generally speaking, the total fertility rate is a better indicator of fertility because it is not easily affected by the age distribution of the population like the natural fertility rate. Fertility rates are relatively high in countries with backward economic development, but relatively low in many developed countries. Contents[hide] 1 Other ways to measure birth rate 2 Factors affecting birth rate 3 See 4 External links[edit] Other ways to measure birth rate Overall fertility rate (GFR, General fertility rate) - equal to 1,000 women aged 15 to 45 Number of children born Standardized birth rate (SBR

Standardized birth rate) - It compares the age and sex composition with hypothetical standards[edit] Factors affecting birth rate*** Encouragement or restriction Population policy Existing age and gender composition Social culture and religious beliefs - especially views on contraception Women's cultural level Economic development level (economic and management theory, when the economy develops well, families should be able to afford to raise more children , but the actual situation is that the higher the level of economic development, the lower the birth rate) Poverty level - In developing countries, children are regarded as a source of economic income because they can work to make money. Infant mortality rate - If a country's infant mortality rate If infant mortality is high, families in the country will have more children because people expect some of the children to die. [edit] See mortality rate population population growth rate natural increase rate

birthrate decrease!!!! 2007-09-24 19:42:30 Supplement: EG: The birthrate in the city has been decreasing. The city's birth rate has continued to decline.

Reference: myself