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 second most popular birth month is July, with about 349,000 deliveries. And while September has vied for the top three spots over the years, in 2013, it came in fourth. October actually scored more births that year, the most recent year stats are available, according to the CDC. Why do babies tend to appear in summer and early autumn?