> Because whatever system is used for txs will have some sort of a limit, determined by our current hardware/infrastructure. So we need a way to make sure "economy" stays in those boundaries and txs won't hit the limit, where system's behavior becomes erratic.

It does not make sense to put an artificial limit to supply in order to prevent the system from hitting a natural limit.  The consequences will be the same, only they will happen earlier -- and the blame would be on those imposing the limit, rather than on the nature of the service.

If a business is unprofitable because the price is less than the cost, the smart reaction is to increase the price to a value that ensures a mininmal profit, or higher.  Limiting  the production at some random value, and hoping that the price would rise to profitable levels, would be a very stupid way to do it.  If the current price is profitable, and the demand increases, the smart reaction is to increase production -- not to artificially limit it.