Personally I'd much rather hear about a potential layoff far in advance. It would give me a chance to prepare financially and start looking at new jobs.
They have had "Lang Law" in France since 1981 apparently. This prevents individual booksellers from undercutting publisher prices and essentially establishes a price fix on books. It protects booksellers from big bookstores, which is basically the same issue that this article is talking about.
It's in the publishers' best interest to set a suitable RRP value. Too high and their sales would be eaten up by used copies (which aren't subject to this same law).
ebook prices are moderated by the same price-demand rules as everything else. Availability of a cheaper hardcopy of the book vs. utility and desirability as an ebook; availability of a pirated version vs. the desire to own a legal copy; etc.