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).
About 1 in 10 babies is born prematurely each year in the United States. The earlier in pregnancy a baby is born, the more likely he is to have health problems. Some premature babies have to spend time in a hospitalâs neonatal intensive care unit (also called NICU). This is the part of a hospital that takes care of sick newborns.