The two volumes of "Understanding Civil War" build upon the World Bank's prior research on conflict and violence, particularly on the work of Paul Collier and Anke Hoeffler, whose model of civil war onset has sparked much discussion on the relationship between conflict and development in what came to be known as the "greed" versus "grievance" debate. The authors systematically apply the Collier-Hoeffler model to 15 countries in 6 different regions of the world, using a comparative case study methodology to revise and expand upon economic models of civil war. The book concludes that the "greed" versus "grievance" debate should be abandoned for a more complex model that considers greed and grievance as inextricably fused motives for civil war.

What drives anti-immigrant bias-and how it can be mitigated In the aftermath of the refugee crisis caused by conflicts in the Middle East and an increase in migration to Europe, European nations have witnessed a surge in discrimination targeted at immigrant minorities. To quell these conflicts, some governments have resorted to the adoption of coercive assimilation policies aimed at erasing differences between natives and immigrants. Are these policies the best method for reducing hostilities? Native Bias challenges the premise of such regulations by making the case for a civic integration model, based on shared social ideas defining the concept and practice of citizenship. Drawing from original surveys, survey experiments, and novel field experiments, Donghyun Danny Choi, Mathias Poertner, and Nicholas Sambanis show that although prejudice against immigrants is often driven by differences in traits such as appearance and religious practice, the suppression of such differences does not constitute the only path to integration. Instead, the authors demonstrate that similarities in ideas and value systems can serve as the foundation for a common identity, based on a shared concept of citizenship, overcoming the perceived social distance between natives and immigrants. Addressing one of the most pressing challenges of our time, Native Bias offers an original framework for understanding anti-immigrant discrimination and the processes through which it can be overcome.

"Making War and Building Peace" examines how well United Nations peacekeeping missions work after civil war. Statistically analyzing all civil wars since 1945, the book compares peace processes that had UN involvement to those that didn't. Michael Doyle and Nicholas Sambanis argue that each mission must be designed to fit the conflict, with the right authority and adequate resources. UN missions can be effective by supporting new actors committed to the peace, building governing institutions, and monitoring and policing implementation of peace settlements. But the UN is not good at intervening in ongoing wars. If the conflict is controlled by spoilers or if the parties are not ready to make peace, the UN cannot play an effective enforcement role. It can, however, offer its technical expertise in multidimensional peacekeeping operations that follow enforcement missions undertaken by states or regional organizations such as NATO. Finding that UN missions are most effective in the first few years after the end of war, and that economic development is the best way to decrease the risk of new fighting in the long run, the authors also argue that the UN's role in launching development projects after civil war should be expanded.

What drives anti-immigrant bias-and how it can be mitigated In the aftermath of the refugee crisis caused by conflicts in the Middle East and an increase in migration to Europe, European nations have witnessed a surge in discrimination targeted at immigrant minorities. To quell these conflicts, some governments have resorted to the adoption of coercive assimilation policies aimed at erasing differences between natives and immigrants. Are these policies the best method for reducing hostilities? Native Bias challenges the premise of such regulations by making the case for a civic integration model, based on shared social ideas defining the concept and practice of citizenship. Drawing from original surveys, survey experiments, and novel field experiments, Donghyun Danny Choi, Mathias Poertner, and Nicholas Sambanis show that although prejudice against immigrants is often driven by differences in traits such as appearance and religious practice, the suppression of such differences does not constitute the only path to integration. Instead, the authors demonstrate that similarities in ideas and value systems can serve as the foundation for a common identity, based on a shared concept of citizenship, overcoming the perceived social distance between natives and immigrants. Addressing one of the most pressing challenges of our time, Native Bias offers an original framework for understanding anti-immigrant discrimination and the processes through which it can be overcome.

The two volumes of 'Understanding Civil War' build upon the World Bank's prior research on conflict and violence, particularly on the work of Paul Collier and Anke Hoeffler, whose model of civil war onset has sparked much discussion on the relationship between conflict and development in what came to be known as the 'greed' versus 'grievance' debate.The authors systematically apply the Collier-Hoeffler model to 15 countries in 6 different regions of the world, using a comparative case study methodology to revise and expand upon economic models of civil war. The book concludes that the 'greed' versus 'grievance' debate should be abandoned for a more complex model that considers greed and grievance as inextricably fused motives for civil war.