A superstar hire can command a superstar salary. The problem comes when only the salary lives up to the billing. Six months in, an employer may realize it overpaid. The paycheck, however, is unlikely to shrink, says Syndio CEO Maria Colacurcio, whose company provides pay intelligence software. Instead, employers may freeze future merit increases or ultimately part ways with the employee.

That dynamic makes the initial offer more than a simple recruiting decision. It is a long-term allocation of capital that can shape pay equity, retention, and labor costs for years.

A new analysis from Syndio, released today, puts the cost of a mismanaged pay decision for a new hire at between $5,257 and $10,454 over the employee’s lifecycle. Those costs can come from correcting underpayment, carrying an inflated starting salary through future raises, or losing employees over perceived pay inequities.

At the same time, employees are paying closer attention to how companies make and communicate those decisions. A new report by HR tech platform G-P points to another pressure on compensation strategy: the gap between employees’ expectations for pay transparency and employers’ practices.

Among 4,000 workers surveyed globally, only 34% say their organization practices pay transparency, formally or informally. And of those, 18% say they would leave the company if the policy were withdrawn.