ABSTRACT
In neighborhoods where many immigrants live, there are often many small businesses owned by their compatriots or coethnics. In other cases, however, immigrant entrepreneurs locate their businesses in neighborhoods with a very high percentage of native residents. The urban insertion of immigrant-owned businesses into Spanish cities is of particular relevance, especially where these businesses concentrate since in these cases their visibility and their differences with the businesses carried out by native entrepreneurs are often remarkable. The use of "ethnic" is very common in the sociology of migration literature. In Spain, "ethnic minorities" do not yet abound, and so "ethnic" is mainly associated with being an immigrant. The percentage of ethnic or co-ethnic merchants out of the total number of entrepreneurs in an area is not able to help us isolate or define a precise way three of the four ethnic centralities studied.
