Population Change
摘要
Population changeChange, population is of particular interest to demographers. This chapter describes the process of population change and illustrates how the interplay of fertility, mortalityMortality and migration come together to determine its extent and direction. The distinctions between estimatesEstimate, projections and forecastForecast are discussed. The various ways of calculating population changeChange, population are described and examples provided of various calculation methods. Trends in population changeChange, population in the US and the world are described.