"

 Finally I only changed the second 'paris economy' reference to 'industry in the Paris region'. The first 'Paris economy' is fine as it is widely understood as such, but the second reference I changed to a) eliminate repetition and b) give the layman reader a cocluding scope of the area we're talking about - Paris on a map extends only as far as Paris, and we're talking larger than that here. Trust me, it is details like this that make the difference between a widely comprehensive article and one targeted to those already familiar with its subject matter.  "