"In recent decades Western Europe has had to face increasing migration levels resulting in a more diverse population. As a direct consequence, the question of adequate inclusion of immigrants into the welfare state has arisen. At the same time it has been asked whether the inclusion of non-nationals or migrants into the welfare state may undermine the solidaristic basis and legitimacy of welfare state redistribution. Citizens who are in general positive about the welfare state may adopt a critical view if migrants are granted equal access. Using data from the European Social Survey (2002/2003) for European OECD Countries we examine the relationship between ethnic diversity and public social expenditure, welfare state support and attitudes towards immigrants among European citizens. The results indicate only weak negative correlations between ethnic diversity and public social expenditure levels. Multilevel regression models with support for the welfare state and attitudes towards the legal inclusion of immigrants as dependent variables in fact reveal a negative influence of ethnic diversity. However, when controlling for migration in combination with other contextual factors, especially GDP, the unemployment rate and welfare regime seem to have a mediating influence."

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