I've written a few short stories now set in the same universe - one which I have been building for a while with an eye to perhaps setting a book there in a future project. They are very much separate stories, though they might share characters, and occasionally events of one story may impact another - but each one stands alone as a separate, self-contained narrative. What I want to know is, is this a good idea for trying to get these works published? If I have a short story rejected by one publication, is there likely to be any negative connotation of submitting another which may share a setting and characters? I have heard of several authors doing exactly this (Susanna Clarke, for example), but is this an unusual thing to happen, or do publishers not mind writers "recycling" settings like this?