Économie et migrations. Des déterminants et impacts économics des migrations internationales

What are the reasons underlying the flows of international migration and its social and economic consequences for both the sending and receiving countries? Although these questions are extremely important, they have unfortunately been little studied. The topic is widely seen as taboo and, in the absence of solid expert knowledge, tends to be addressed mainly from a purely ideological standpoint.
Stéphane Justeau does not claim to provide an answer to the problem, which needs to be approached from many different angles -demographic, cultural, social and political. But as an economist, he offers some valuable insights into what makes individuals decide to emigrate and onto the impact these migrations have on employment and earnings levels in the receiving countries.
Basically, he shows the part played, among other things, by wage differentials in the behaviour of migrants. He then stresses the tiny impact of immigration on the earnings and employment of existing residents. He thus provides some useful pointers towards a more detailed and thorough analysis of a phenomenon that still needs a great deal more investigation.