But keeping salaries secret does exactly that, and it's a practice as old as it is common, despite the fact that in the United States, the law protects an employee's right to discuss their pay.
A držanje plaća u tajnovitosi doprinosi upravo tome, i ta praksa je stara koliko je i  učestala, unatoč činjenici kako u  Sjedinjenim Državama zakon stoji na strani zaposlenika  kada pričaju o plaći.