60 https://www.uni-bremen.de/fb12/irregular-migration/working-paper-series research project CLANDESTIO: Working Paper Series de Universität Bremen Mon, 16 Mar 2026 18:52:15 +0100 Mon, 16 Mar 2026 18:52:15 +0100 Universität Bremen content-220661 Wed, 04 Mar 2026 23:43:54 +0100 https://www.uni-bremen.de/fb12/irregular-migration/working-paper-series#c220661 <p><em>Editorial note: Working papers up to No. 9 were edited in the Hamburg Institute of International Economics in the framework of the project CLANDESTINO (WP 1-4) and Global Challenges (WP 5-9). The working paper series is continued by a voluntary editorial team. Contact database coordinators if you are interested in publishing a working paper.</em></p> <blockquote><p>Kraler, Albert and Madalina Rogoz (2011): Irregular migration in the European Union since the turn of the millennium –development, economic background and discussion, Database on Irregular Migration, <a class="download" href="t3://file?uid=79542" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No. 10</a> </p> <p>Ugba, A. (2010): Irregular migration in the United Kingdom since the turn of the millennium ? development, economic background and discourses, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79543" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.9</a></p> <p>Kovacheva, V. (2010): Security challenges and the composition of irregular resident populations in Europe: overestimating the young men?, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79544" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.8</a></p> <p>Castañeda, A., Valle, A. (2010): Irregular migration in Ecuador since the turn of the millennium ? development, economic background and discourses, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79540" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.7</a></p> <p>Godenau, D. (2010): Irregular migration in Spain since the turn of the millennium ? development, economic background and discourses, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79539" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.6</a></p> <p>Kovacheva, V. (2010): Irregular migration in Germany since the turn of the millennium ? development, economic background and discourses, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79535" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.5</a></p> <p>Kovacheva, V., Vogel, D. (2009): The size of the irregular foreign resident population in the European Union in 2002, 2005 and 2008: aggregated estimates, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79537" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.4</a> ( <a class="download" href="t3://file?uid=79538" target="_blank" title="Leitet Herunterladen der Datei ein">Annex 1</a>; <a class="download" href="t3://file?uid=79533" target="_blank" title="Leitet Herunterladen der Datei ein">Annex 2</a>, <a class="download" href="t3://file?uid=79536" target="_blank" title="Leitet Herunterladen der Datei ein">Annex 3</a>)</p> <p>Vogel, D. (2009): How many irregular residents are there in Germany? Estimates on the basis of police criminal statistics, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79534" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.3</a></p> <p>Jandl, M. (2009): A multiplier estimate of the illegally resident third-country national population in Austria based on crime suspect data, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79532" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.2</a></p> <p>Vogel, D., Kovacheva, V. (2008): Classification report: Quality assessment of estimates on stocks of irregular migrants, Hamburg Institute of International Economics (HWWI), Database on Irregular Migration, <a class="download" href="t3://file?uid=79541" target="_blank" title="Leitet Herunterladen der Datei ein">Working paper No.1</a></p></blockquote> Content