Fernández Grela, ManuelPena Boquete, YolandaFernández Páez, Paula Elena2012-02-022012-02-022012-02-02978-84-9887-800-4http://hdl.handle.net/10347/3639Contemporary economic migration flows show a South-North pattern (from low-income countries to high income countries).Although, these flows exist since the mid-eighties of the twentieth century, they have intensified in recent decades. For this reason, there are causes to explain the persistence of these flows over time and others to explain their recent intensification. The first causes would be related to the duality of development and under-development while the second ones with the globalization process. Consequently, the social, political and legislative changes influence its management. Therefore, this thesis attempts to answer the following questions: What are the characteristics of migration in Spain?, what is its magnitude and trend in recent years?, what were the determinants of irregular immigration in Spain?; are restrictive policies an incentive for irregular immigrants?, what is the probability of being an irregular immigrant?.spaEsta obra atópase baixo unha licenza internacional Creative Commons BY-NC-ND 4.0. Calquera forma de reprodución, distribución, comunicación pública ou transformación desta obra non incluída na licenza Creative Commons BY-NC-ND 4.0 só pode ser realizada coa autorización expresa dos titulares, salvo excepción prevista pola lei. Pode acceder Vde. ao texto completo da licenza nesta ligazón: https://creativecommons.org/licenses/by-nc-nd/4.0/deed.glhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.gldoctoral thesisopen access