I don't believe that writers (or anyone else for that matter) have rights in any intrinsic sense, independent of the law and any contractual arrangements. The law provides for certain rights, such as copyright (and also for recourse); and once a contract has been signed, writers have rights as defined by the contract. But that's different from the idea of rights that inhere in the writer him or herself--that arise in some abstract sense from the condition of being a writer.
We can formulate what we feel are good contract terms; we can recommend what writers should look for in a contract. But while these things are good and proper, and in an ideal world would be manifested by every publisher, agent, etc., they aren't an entitlement, IMO.
Plus, there's so much variation in this business that just about anything you could come up with would probably be contradicted by something else. Take copyright for instance. If you posit that keeping copyright is a writer's right, where does that leave work-for-hire, a very lucrative and legitimate field in which large numbers of writers are employed?
- Victoria