The Geography of Unemployment of First and Second-generation Africans in France: 1) Customer Discrimination in Face-to-face Jobs. It is well-known that the unemployment rate differential between people of foreign and French origins has increased over the past decades. This statement must be completed by two key features. First, the unemployment rate differential is considerably higher in large cities than in small ones. Second, this geographic dualism has been magnified over time. This paper documents these two facts and offers a credible interpretation that relies on market failures on local labour markets. The hypotheses we test are the following ones. 1) People of foreign origin are mostly discriminated against in jobs which imply a fac...