It's not cheap:
In 2015 the Securities and Exchange Commission is expected to finalize a new rule that imposes excessive compliance costs on public companies with no discernible benefits to investors. The rule requires that public companies calculate and disclose the ratio of the CEO’s pay to the median annual total compensation of all company employees. Part of the 2010 Dodd-Frank law, this ill-advised rule clearly advances the agenda of interest groups worried about income inequality, politicizes the SEC’s disclosure regime and is inconsistent with the purpose of federal securities laws. ...
The pay-ratio rule is an attempt to shame companies and their boards to advance the “social justice” goal of more equitable income distribution. It comes with a high price tag: Complying with the pay-ratio rule will require the private sector to spend $710.9 million and 3.6 million hours a year, according to a recent report by the Center for Capital Markets Competitiveness.
I called pay ratio disclosure an example of quack corporate governance. I stand by that characterization despite the nattering of nabobs of negativity. Anyway, go read the whole thing.