No investigations have been done on this. However, we receive at least one request a week from authors whose books crop up on files like Torrent. Since I am Kim Thúy's publisher, I know that his novel Ru has been pirated repeatedly. When we see that Torrent technology has been used to download, we send a lawyer to let people know that they do not have the right to do that. People feel that our books are free and they download them very openly. We have not witnessed this as such, but one author told us that when we get a Torrent file to shut down somewhere, it reopens elsewhere almost immediately. There is no control over this. In the case of a best seller, this means that hundreds of books are not sold that would be otherwise. And in fact, the sale of digital copies has also declined a great deal in our area.
On November 22nd, 2018. See this statement in context.