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.
Birth Control Shot. The birth control shot, known as Depo Provera, is a hormonal injection that protects against pregnancy for three months. For the typical couple, it is more effective than the birth control pill -- only 3% of users get pregnant in a year. Pros: Only injected four times per year, highly effective. Cons: Cost (about $240 per year), may cause spotting and other side effects.