Oct 31st 2002
From The Economist print edition

Most sources for this survey can be found on The Economist's website. One book that proved particularly useful was “Immigration Policy and the Welfare System”, edited by Tito Boeri, Gordon Hanson and Barry McCormick. Several people influenced this survey more than may be apparent from the text, including Herbert Brücker of the German Institute for Economic Research, Ledio Cakaj, Susan Martin of Georgetown University, Jonathan Portes, John Salt of University College London, Sarah Spencer of the Institute for Public Policy Research, Paul Wallace, and Alan Winters of Sussex University.

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