> Not all people have the ability to walk away. So you hire someone in a weaker position for less or even exactly what they're worth: 6 months later, when they

> Not all people have the ability to walk away. So you hire someone in a weaker position for less or even exactly what they're worth: 6 months later, when they're now in a stronger (employed) position, they find a new employer and you're stuck with the ramp-up and churn tab. It's a seller's market right now. The biggest advantage an employer holds is the disparity in information; most underpaid people aren't aware they're underpaid.