Data documentation and codebook: Ask the experts? A Delphi survey of immigration to the European Union in 2030

Data documentation and codebook: \"Ask the experts? A Delphi survey of immigration to the European Union in 2030.\" Please download all the files. See an overview of the data and files in the html file \"Readme-and-Codebook.html\" with your browser. Please open the R project file \"Migration scenarios.R\" first to replicate graphs and analysis. This will assure that you can run the scripts smoothly. Run the scripts for each of the figures and tables inside the \"script\" folder.