Population projection models that introduce uncertainty are a growing subset of projection models in general. In this paper we focus on the importance of decisions made with regard to the model specifications adopted. We compare the forecasts and prediction intervals associated with four simple...

The log-linear model, with an alternative parameter coding scheme, is used in this paper to obtain estimates of international migration flows in situations where the data are inadequate or missing. The alternative parameter coding scheme is particularly useful in constructing the origin –...

In this paper we model the structures found in the level (generation) and allocation (distribution) components of age-specific and origin - destination-specific migration flows. For the examples, we examine the regional migration patterns in the USA for four periods: 1955 - 60, 1965 - 70, 1975 -...