In this chapter, we draw empirical and theoretical conclusions based on the various analyses contained in this volume that focus on the European and U.S. migration regimes. We conclude that immigration policies have a multitude of unintended effects which affect both migrants and governments in the countries of origin, transit, and arrival. This chapter begins with an overview of the interest policies inside and outside the ‘defended’ territories. In the U.S. a lucrative internal market of border control has emerged, whereas the EU’s externalized border control includes the neighboring countries. The second part describes the unintended effects arising due to inconsistent general policies of the countries of arrival and origin, which often contradict the official immigration policies. Following this, the limited effect of border control measures on immigrants and their journeys are discussed. In the fourth section we explore in more detail the unintended effects in the form of new areas of cooperation, including new forms of self-organization, local interest groups, and sanctuary movements. The final section summarizes the various unintended effects and offers recommendations for decision makers in the field of migration policy.

Both the interests of nation states to manage migration and the behavior of migrants during their individual journeys have mutually reinforcing effects on the design and functioning of contemporary migration regimes. This assumption has motivated the interdisciplinary approach of this volume. The aim is to understand how immigration policies affect migrants’ journeys and vice versa. We want to find out whether or not the assumptions that lead to the design of immigration policies reflect reality. Does border control prevent irregular immigration? And what is the role of the various actors, including the countries of origin, transit, and arrival, and the migrants themselves? In order to answer these questions, we bring together insights from political science and ethnographic field work—two disciplines which have so far debated their insights mainly within separate research frameworks. The articles take into account the interests of the migrants’ countries of origin, transit and arrival, as well as the motives and strategies of the migrants themselves. The resulting findings are relevant to both policy makers and scientific experts, but also to anyone interested in governing migration.

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Also presented as the author's thesis (Diss.)--Universität Kassel, 2007 under the title: Zur Massenviktimisierung illegaler Migranten an den Aussengrenzen der Europäischen Union. / Includes bibliographical references.

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