Here is a premise:
Most of the couture houses are concentrated on the Right Bank close by the rue du Faubourg-St-Honore (just le Faubourg to regular shoppers) and classier avenue Montaigne where designers Christian Lacroix, Chanel, Calvin Klein, Hermas, Christian Dior, Yves Saint Laurent, and Versace have shops.

Here is a hypothesis:
The Right Bank is also home to many retired French politicians.

Is it possible to conclude that if the premise is true, then so is the hypothesis?
it is not possible to tell