Social mobility is a key objective for policy to foster inclusive economies and societies. How immigrants and their children, who are now accounting for almost one-in-five persons in the OECD, are faring in this respect, is particularly important for social cohesion. It is not surprising that many persons who have immigrated as adults face specific difficulties to progress, linked among others to the fact that they have been raised and educated in a different environment and education system, and that they may not have the same command of the host language as the native-born. One would, however, generally expect that for children of immigrants, especially those who are native-born, these barriers would disappear and they could enjoy the same opportunity for social mobility as their peers. Yet, evidence from previous work by the OECD and the European Union suggests that native-born children of immigrants tend to still lag behind their peers with native-born parents in many OECD countries, especially in Europe. This is particularly worrying since these are a large and growing group in most countries.