summarize the key points of the paper:Birrell, Bob and Bronwen Perry. 2009. "Immigration Policy Change and the International Student Industry." People and Place 17(2):64-80.

The paper by Birrell and Perry examines the impact of changes in immigration policy on the international student industry in Australia. The key points of the paper include:

**Policy Context**: The authors provide an overview of Australia's immigration policies, particularly those affecting international students, and how these policies evolved over time. They emphasize the significant role that international students play in Australia's economy and education sector.

**Economic Implications**: The international student industry is highlighted as a key economic contributor, generating substantial revenue for educational institutions and the broader economy through tuition fees and living expenses.

**Policy Changes**: The authors discuss specific changes to immigration policies that have shaped the international student landscape, including shifts towards more restrictive policies aimed at addressing concerns about migration and the quality of education.

**Student Demographics**: The paper analyzes the demographics of international students in Australia, noting trends in nationalities, fields of study, and their impact on local communities.

**Challenges and Opportunities**: The authors outline challenges faced by the international student sector, including competition from other countries, policy uncertainties, and issues of cultural integration. They also identify opportunities for growth and enhancement of the industry through better policy design.

**Future Outlook**: The authors conclude with reflections on the future of the international student industry in Australia, highlighting the need for responsive policies that balance economic benefits with the social implications of international student influx.

Overall, the paper emphasizes the interplay between immigration policy and the international student sector, advocating for informed and strategic policy decisions to sustain the benefits of this industry.