To talk about intellectual property in such a context is a bitter farce. To add insult to injury, there are to my knowledge no journals that will pay an author for acquiring and publishing his property. However, there are journals who extract fees from the author for publication and for reprints. The career contingencies in academia being what they have become, younger authors are only too willing to go along with these conditions just to get their work into print. The situation for publishing a book is much the same.
Some publishers pay no royalties at all.
Others will publish only if the author is willing to underwrite the cost of publication. Still others will offer to pay royalties. But a scholarly book has to be really successful to produce enough royalties to even cover the author's costs. In addition to these barriers to publication, authors have to deal with editors. These are of two kinds and it seems a pity that they are both described by the same noun.