Is urban space, as a concentric agglomeration in expansion, in contraction, which duplicates itself, the solution of a dierential system ? Does urban geometry come from "chaotic" mutations, from cloning and aggregating districts ? And do they project their metrics on space ? Then where does its...

We often present data bank building (output-data calculation) as an only quantitative work. We think that economist should consider the context where his input-data were built, before to use them in his own data bank (we suggest to make an institutional and a bibliometric analysis of the...