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).
How many infants are born in the United States each year? According to data from the Centers for Disease Control and Prevention, in 2010, 3,999,386 infants were born in the United States, 3% less than in 2009. The number of births fell for nearly all races and Hispanic origin groups. The birth rate in 2010 was 13.0 per 1,000 people.