A local mattress company is looking to hire a "sign holder/spinner" and is willing to pay up to $10 per hour if the worker will wear a mattress "uniform". Elliot, in desperate need of a job, is willing to wear the mattress uniform and do the job for anything above $7.

A minimum wage of $12 either will or will not deter this voluntary transaction from occurring , resulting in either gains for trade or an inefficiency vauled at $3 or $7 or $2 or $5 or $17 or, $12 or $20 per four?