Worldwide, the age structure of the population is changing. Many societies, especially in the more developed regions, have already attained older populations than have ever been seen in the past. Many developing countries in the midst of the demographic transition are experiencing rapid shifts in the numbers of children, working-age population and older persons. In many countries, the changing age structure of population is becoming a major concern and the focus of heated political debate, as Governments struggle to reign in the rapid growth of ageing-related expenditures.  Policies on pensions, employment, health care and international migration, for example are being shaped by changing age structure.

• Mr. Antonio Golini, University of Rome
  "The changing age structure of population and its consequences for development"

• Mr. Andrew Mason, University of Hawaii at Manoa
  "Changing age structures and their implications for development"

• Mr. Naohiro Ogawa, Nihon University, Japan
  "Changing age structures of population in Asia and their implications for development"

• Ms. Elena Zuñiga, Independent consultant, Mexico
  "Changing age structure of population in Latin America and the Caribbean and their implications for development"