summarize the key points of the paper:Reitz, Jeffery. 2014. "Canada: Immigration and Nation Building in the Transition of the Knowledge Economy." Pp. 99-136 in Controlling Immigration: A Global Perspective, edited by P. L. Martin and J. Hollifield. Stanfo

In "Canada: Immigration and Nation Building in the Transition of the Knowledge Economy," Jeffery Reitz discusses the role of immigration in shaping Canadian society and its economy during the transition to a knowledge-based economy. Here are the key points from the paper:

**Knowledge Economy Transition**: The paper examines how Canada has shifted from a resource-based economy to one focused on knowledge-intensive industries, emphasizing the importance of skilled labor in this transition.

**Immigration Policy**: Reitz analyzes Canada's immigration policies, highlighting how they have evolved to attract skilled immigrants who can contribute to the knowledge economy. The emphasis is on the balance between economic needs and social cohesion.

**Integration and Multiculturalism**: The author discusses the challenges and opportunities related to immigrant integration in a diverse society. He argues that Canada’s multicultural policies have generally supported nation-building and social stability.

**Economic Contributions**: The paper illustrates the significant contributions immigrants make to Canada's economy, particularly in sectors that require specialized skills and diverse perspectives.

**Public Perception and Policy Challenges**: Reitz addresses the public perception of immigration and the political challenges faced in managing immigration policies, particularly in the context of economic needs versus social integration.

**Future Implications**: The author considers the implications of current immigration trends for Canada’s future as a knowledge economy, emphasizing the need for ongoing adaptation in policy and practice to maximize the benefits of immigration.

Overall, Reitz’s paper provides a comprehensive analysis of the intersection between immigration, economic transition, and nation-building in Canada, highlighting the complexities and potential of immigrant contributions to society and the economy.