summarize the key points of the paper:Cornelius, Wayne A. and Takeyuki Tsuda. 2004. "Controlling Immigration: The Limits of Government Intervention." Pp. 3--48 in Controlling Immigration: A Global Perspective. Stanford University Press.

In the paper "Controlling Immigration: The Limits of Government Intervention" by Wayne A. Cornelius and Takeyuki Tsuda, the authors explore the complexities and challenges of immigration control. Here are the key points summarized:

**Government Intervention**: The authors discuss the role of government in managing immigration flows and the inherent limitations of such interventions. They argue that while governments attempt to exert control over immigration, various factors often undermine their policies.

**Globalization Impact**: The paper highlights the influence of globalization on migration patterns, suggesting that economic interdependence makes it increasingly difficult for governments to fully regulate immigration.

**Policy Effectiveness**: The authors evaluate the effectiveness of different immigration policies, indicating that many measures intended to restrict immigration can lead to unintended consequences, such as encouraging unauthorized migration or fostering a black market for labor.

**Migration Dynamics**: The dynamics of migration are examined, showing how social, economic, and political factors interact and influence individual decisions to migrate, often beyond governmental control.

**Comparative Perspectives**: The paper provides a comparative analysis of immigration policies across various countries, identifying trends and common challenges faced by different governments in managing immigration.

**Local Situations**: The authors emphasize the importance of local contexts and conditions in shaping immigration experiences, suggesting that national policies might not account for the complexities at the regional or community levels.

**Policy Recommendations**: Finally, Cornelius and Tsuda advocate for more nuanced immigration policies that consider the realities of migration rather than relying solely on restrictive measures.

Overall, the paper underscores the limits of government action in controlling immigration, advocating for a more comprehensive understanding of migration dynamics and the need for policies that reflect these complexities.