The one demand Hotelling model fails to explain the observed specialization of nonrenewable resources in specific end-uses. We develop a model with multiple demands and multiple resources and grades. Principles of Ricardian absolute and comparative advantage play an important role in determining...

The techniques of probabilistic population forecasting are increasingly being recognised as a profitable means of overcoming many of the limitations of conventional deterministic variant population forecasts. This paper applies these techniques to present the first comprehensive set of...

The variability of demographic trends at the subnational scale, particularly internal and international migration, renders subnational population forecasting more difficult than at the national scale. Illustrating the uncertainty of the demographic future for subnational regions is therefore a...