„Having good host-country language skills is a key determinant for integration, in particular for education and employment. Data from European OECD countries shows that refugees with intermediate or advanced levels of proficiency in the host-country language have employment rates about 40 percentage points higher than those with little or no (self-declared) language skills.“
OECD (Hrsg.), Unlocking the Potential of Migrants (2019), S. 58.