For the estimation of structural gravity models using PPML with countrypair, exportertime and importer-time effects it proves useful to exploit the equilibrium restrictions imposed by the system of multilateral resistances. This yields an iterative projection based PPML estimator that is...

Die Analyse präsentiert Prognosen für die deutsche und rheinland-pfälzische Bevölkerung mithilfe von ARIMA-Modellen. Außerdem wird ein Vergleich dieser Ergebnisse zu den theoriehaltigen Prognosen des Statistischen Bundesamtes, des Statistischen Landesamtes Rheinland-Pfalz und des...

Population forecasts are crucial for many social, political and economic decisions. Official population projections rely in general on deterministic models which use different scenarios for future vital rates to indicate uncertainty. However, this technique shows substantial weak points such as...