Gligorov, Vladimir (2009). "Mobility and Transition in Integrating Europe" United Nations Development Programme, Human Development Reports Research Paper 2009/15 United Nations Development Programme pp. 1-54

Migration from the European economies in transition is discussed on the bases of the research carried out within the framework of the Global Development Network over the last four to five years. Trade-offs between functionings and capabilities are traced in cases of voluntary and involuntary migration as well as in the case of permanent and temporary migration. Various causes and effects of migration are considered. Policy proposals end the paper. There is a literature review in the appendix with the view to check the claims made in the public debate on migration against the existing knowledge on that subject.