called by some "creating jobs" or "trickle down"
Not really though because the shiney baubbles I'm thinking of are affordable by so few people that a handful more joining the party for a few years has almost no real impact.
I mean any Lamborghini salesman worth his salt could easily handle a few extra customers so no need for new salesmen and Lamborghini as far as I understand it has always kept production numbers low like around 3000 a year so supply and demand isn't an issue and therfore no need to hire any new factory workers.