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).
The U.S. Census Bureau reports that 361,481 babies are born each day around the world. That works out to be 251 babies born worldwide per minute. Oh baby! Within the U.S., there were 3,952,841 babies born in 2012, according to the CDC. That's about 3 percent of the world's baby total (and 749 fewer births than in 2011).