Students learn in microeconomics that the demand curve for a good, which shows the relationship between the price of a good and the quantity of the good that consumers demand-i.e. are willing, ready, and able to purchase-has a negative slope.
The UNICEF estimates that an average of 353,000 babies are born each day around the world. The crude birth rate is 18.9 births per 1,000 population or 255 births globally per minute or 4.3 births every second (as of Dec. 2013 estimate).
In 2013, a total of 273,105 babies were born to women aged 15â19 years, for a live birth rate of 26.5 per 1,000 women in this age group. This is a record low for U.S. teens in this age group, and a drop of 10% from 2012. Birth rates fell 13% for women aged 15â17 years, and 8% for women aged 18â19 years.