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 annual number of births per 1,000 people in The United States is 13.42 while in Canada it is 10.29. This entry gives the average annual number of births during a year per 1,000 persons in the population at midyear; also known as crude birth rate.