Agreed that trade published authors are screwed - not to put it politely. But that's the deal they chose. They are gambling that in getting less they'll make more by selling more and having a big company behind them to push their work. It's a valid choice - not necessarily the smart one these days.
But the underlying problem is that people aren't paid according to what they deserve. They're paid according to market forces. The trade publishers can do this because they're always going to have a lot more authors knocking on their doors - (supply) - and they only need a few - (demand).
This is a wider topic, but how can you arrive at what someone's work is worth except by market forces? The only alternative would be to pay everyone the same (or have a committe of some kind deciding the value of various types of labour). I could spent 5,000 hours writing a symphony, and it would be **** and no one would want to listen to it -- would my work then be worth anything, to anyone?
I agree that market forces in the trad publishing route might decree that someone's writing is worth next to nothing, when self-publishing might reveal that to be not at all the case. But the self-publisher is still deriving his income from the market.
Agreed the only way to arrive at the value of work is by market forces. So let's look at the market.
The earnings of novelists are declining. Yes, there are still a handful of mega-star writers who make millions. But mid-list and debut novelists today earn less than mid-list and debut novelists did 30 years ago.
Has demand gone down? From what I can gather - somewhat. The number of novels read per capita in the Anglo world is declining. But not steeply. And not as steeply as writer earnings have declined.
Has supply increased? I have no numbers to back this up, but it's reasonable to assume that is also true. The advent of desktop publishing has made it much easier to sit down and write a novel. And the explosion of self-help books for writing fiction suggests there are growing numbers of people who think they have a commercial novel in them.
On the other hand, we also know that as earnings go down, supply goes down. It is harder today to earn a livelihood from writing novels than it was 30 years ago. Harder than just 10 years ago. And if the market is functioning transparently, and writers know that the value of their work is declining, fewer people will choose to write. Or rather, fewer people will choose to write as a vocation.
Is this happening? It seems to be. The declining value of fiction is only now becoming clear to professional writers and those who aspire to be professionals. So expect fewer people to choose to write as a vocation.
What does that mean for the market? It means a decline in fiction produced by dedicated writers. I doubt we'll see much, if any, of a decline in debut novels - everyone starts as amateurs, and a great many people can and will take a run at getting their books on shelves. But it seems pretty clear to me that we're entering an era when fewer people will be writing fiction full-time in order to keep a roof over their heads. If that first novel doesn't sell very well, it's back to the grindstone of being an insurance adjuster, journalist, or teaching assistant.
So what does that mean for the market? It means lower quality - a greater proportion of clumsy works on the shelves (or virtual shelves) written by neophytes, or churned out by self-publishing writers impelled to ramp up quantity to grind out a livelihood. It means the days of a writer being afforded a couple novels to find her sea legs are over. It means writers desperately trying to find an edge beyond the writing itself to attract attention to their books.
Will readers notice or care that quality is declining? It's an interesting question. Probably not. I have a sense that the differences between a work written by aspiring amateur and a master novelists matter less and less to readers. But I suppose we'll find out.