The idea is, show the bid/ask spread for time. Workers are selling time, companies are buying it. Of course, broad categories of jobs will be separated from each other.
A bid ask spread looks like this:
https://en.m.wikipedia.org/wiki/Bid%E2%80%93ask_spread
There are a few complications: 1. Employers don’t want to share their bid. Well, the law might require them to.
2. Workers might have variable ask. Fair, since it matters if they have to commute and what the role is exactly. That can potentially be countered with a formula. (I’m willing to commute X minutes for Y more dollars per hour, I’m willing to relocate for Z more dollars where Z could be infinity, etc)
3. Jobs are variable and people are variable so time is hard to price. This is true but maybe a close match is good enough to merit an interview.