That comment would be interesting - but I doubt we'll see it. This seems to be part of a complex issue that affects many aspects of the writing business. The recent Macmillan-Amazon spat was, it seems to an outsider, partly a struggle to decide who sets the selling price of a book -- the retails or the publisher?
I'm also always impressed by the number of lively independent book stores in Holland when I go there. When I asked my Dutch publisher why this was he said straight away: 'Price maintenance.' If I recall correctly no books can be discounted by law until one year after publication. Sounds draconian. Seems to make for healthy book stores for the devoted readers - and one year later everything moves to the supermarkets.