You're disregarding the fact that both cheeseburgers and dollars can increase, counterbalancing each other. And that if there aren't more dollars while the numb

You're disregarding the fact that both cheeseburgers and dollars can increase, counterbalancing each other. And that if there aren't more dollars while the number of cheeseburgers increases, well, cheaper cheeseburgers. Deflation in a simple world where only cheeseburgers are sold. Same with labour. Increase the number of people making cheeseburgers, and you get more cheeseburgers and more people buying cheeseburgers. There is no fixed amount of labour to be done. It depends on the number of people.