This book examines how to forecast the international migration component in a way that can be used for population forecasts using the probabilistic approach. It applies Bayesian statistical methods to an under-researched area of population forecasting.

International migration is becoming an increasingly important element of contemporary demographic dynamics and yet, due to its high volatility, it remains the most unpredictable element of population change. In Europe, population forecasting is especially difficult because good-quality data on migration are lacking. There is a clear need for reliable methods of predicting migration since population forecasts are indispensable for rational decision making in many areas, including labour markets, social security or spatial planning and organisation. In addressing these issues, this book adopts a Bayesian statistical perspective, which allows for a formal incorporation of expert judgement, while describing uncertainty in a coherent and explicit manner. No prior knowledge of Bayesian statistics is assumed. The outcomes are discussed from the point of view of forecast users (decision makers), with the aim to show the relevance and usefulness of the presented methods in practical applications.

A lens to look through into the future of international migration in Europe A migration forecaster's toolkit, applying expert knowledge to account for uncertainty An honest account of the limits of predictability of international migration Hints for population-related decision making under uncertainty

Autorentext

Jakub Bijak is Professor of Statistical Demography at the University of Southampton. He has background in economics (PhD 2008, Warsaw School of Economics) and over 20 years' work experience in academia and international civil service. His research focuses on demographic uncertainty, population and migration models and forecasts, and the demography of armed conflict. He has been awarded the Allianz European Demographer Award (2015) and the Jerzy Z Holzer Medal (2007) for work on migration modelling. Leader of a European Research Council project "Bayesian agent-based population studies" (www.baps-project.eu), and a Horizon 2020 project "QuantMig: Quantifying Migration Scenarios for Better Policy" (www.quantmig.eu).

Inhalt
List of tables and figures.- Part I. Introduction.- Part II. Explaining and forecasting migration.- Part III. Examples of Bayesian migration predictions.- Part IV. Perspectives of forecast makers and users.- Part V. Conclusion.- Acknowledgements.- References.- Subject Index .- Index of Names.- Annex A. Data sources and the preparatory work.- Annex B. WinBUGS code used in the presented Bayesian forecasts.- Annex C. Bayesian forecasts of selected migration flows in Europe.