Contraceptive Change and Fertility Transition

Over the past half‐century, most countries have made progress through their demographic transitions with continuing declines in mortality and fertility. The major driver of fertility decline has been the adoption of contraception by women of reproductive age who increasingly desire smaller families. This paper documents the massive changes in contraceptive behavior that have occurred since 1970 at the global and regional levels and examines contraceptive use differentials by marital status and method. To understand the proximate causes of the rise in contraceptive use, we document the changes in the potential demand for contraception (among women who want to space or limit their childbearing) and the degree to which this potential demand is satisfied by the actual practice of contraception. The paper concludes with a confirmation of the strong inverse relationship between contraceptive use and fertility. The main sources of data for these analyses are comprehensive datasets with country, regional, and global estimates of historical trends in fertility and contraceptive behavior maintained by the Population Division of the United Nations.