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).
It is difficult to come to the exact number of births every day since not all births are registered or recorded. The UNICEF estimates that an average of 353,000 babies are born each day around the world. Our current world population is approximately 7.2 billion and growing. It passed the 7 billion mark in 2011.