I have often wondered how close the fees that 'marketplace' companies charge are to the value they provide; of course, in a perfectly competitive world, they wo

I have often wondered how close the fees that 'marketplace' companies charge are to the value they provide; of course, in a perfectly competitive world, they would be very close. However, it seems that in practice, the marketplace uses VC money to obtain a near-monopoly (probably aided by the network effects of marketplaces in general), and then extracts what amounts to an economic rent thereafter. It's interesting to see a strike organized against the marketplace. Perhaps this will be an ultimately more successful way to apply downward pressure on the fees? I wonder if consumers will read this and also participate, ramping up the bad PR for Etsy and putting more pressure on lowering fees. One challenge is that, unlike a labor union, I don't think there are really any legal protections for a 'seller strike'.