A: Aggregate demand, or AD, is defined as the total amount of goods and services consumers are willing to purchase in a given economy and during a given time period. Sometimes aggregate demand changes in a way that alters its relationship with aggregate supply, or AS; this is called a shift..
The birth control shot, Depo-Provera, is a hormonal injection that prevents unplanned pregnancy for three months at a time. The hormone in this shot is progestin. The birth control shot works similarly to the birth control pill. It prevents ovulation and increases the mucus buildup around the opening of the cervix. According to Planned Parenthood, when you receive it as directed, the shot is 99 percent effective.
Depo is a birth control shot that is only given four times per year. Itâs great for women who donât want to have to worry about daily birth control, and it is very effective, upwards of 99%. It can be a very great birth control method for many women.