Even Parisians often flee Paris because of red tape and taxes, so if you add a foreign accent, or poor to no French, into the mix you are likely going to be going at a snail's pace. Berlin is cheaper, friendlier to business, friendlier to English and just friendlier in general on the street. The cheapness translates as a factor for employees (their home), and the international orientation of the city allows you to dr…
I'd be fairly surprised if there was even a single metric on which Paris beats Berlin for anything business related Like Paris having the biggest business center in Europe? http://en.wikipedia.org/wiki/La_D%C3%A9fense
Let me add (compared to Berlin):
Good connectivity to: London, Brussels (train) and other cities (CDG one of the biggest air hubs)
Major companies are there: http://en.wikipedia.org/wiki/Economy_of_Paris#Fortune_Global...
(Most of the big companies are there: fashion, banks, defense/big contractors (some), etc)