Aggregate Demand Curve. The vertical axis for an aggregate demand curve measures price level, which differs from price in that it represents the average price of goods or services in the economy as a whole. This number factors in items such as changes in the number of consumers, changes in tastes, and changes in income.
The Depo-Provera shot is a highly effective birth control method. Women who use it correctly have a risk of pregnancy thatâs less than 1 percent. However, this percentage increases when a woman doesnât receive the shot at the recommended times.
The pros of the depo shot include: 1  It is highly effective when it is used correctly, i.e. long-term protection with one shot every three months. 2  There is no need to remember to take a pill every day. 3  It costs less than birth control pills.  There is no inhibition of sexual spontaneity.