Preface

Population ageing is an inevitable outcome of the demographic transition — the historic shift from higher to lower levels of fertility and mortality that yields a period of rapid population increase and, eventually, an older population that is much larger as a share of the total. While more developed countries have completed or are well advanced in this transition, less and least developed countries (LDCs) are predominantly in the early or middle stages, when the older population is still small but starting to grow. Such countries can anticipate a continuing, gradual increase in both the number and the share of older persons, many of whom will require substantial care and support at some point in their lives. Unfortunately, many LDCs are ill-prepared to offer the essential services and support that will eventually be needed by their ageing populations.

Sustainable Development Goals:

Good Health and Well-Being

Gender Equality