I fully agree with the value of posting but for a different reason. People use the phrase "labor market" but there are so many restrictions on how we sell our labor that it cannot possibly be compared to how one buys wheat or tube socks. In other markets we expect prices to be listed for labor that is regarded as tacky. In other markets we expect competition to lower prices - if I went to a company and offered to perform a job for 80% of what the present job holder made I would be regarded as weird. I usually cannot work for two competing companies half-time each but wholesalers can sell goods to two competing retailers. What is bad is that the same people who say the free market is holy do not support making the labor market free for both sides of the exchange.