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For better or worse, the shareholders are the ones who set the pay of the CEO.Um, no. At publicly-traded U.S. companies, executive compensation is set in the first instance by the compensation committee of the board of directors [1]. The law requires only that shareholders be allowed to vote on non-binding "say on pay" resolutions at least every three years (or more often if the shareholders so vote) [2].
It's been suggested that executive compensation naturally and inexorably ratchets upward because:
+ Comp committee members don't want to be sued by shareholders for negligence or gross negligence in setting executive comp. (That's just what happened when Disney was required to pay ex-CEO Michael Ovitz a $140 million severance package even though he'd been on the job only a year or so when he was shown the door [3].)
+ So, comp committees rely on survey reports about existing executive compensation levels in the relevant industry, market segment, etc. (They also hire professional consultants to provide documentation and political cover.)
+ Comp-committee members are supposed to be independent, that is, not beholden to management. BUT, board members tend to be supportive of management: They might well have been recruited by management. Business friendships develop among management- and non-management board members as well as with senior executives. The board as a whole feels it's a team; its members naturally want to be perceived as team players (they probably wouldn't be on the board in the first place if that weren't the case).
+ Here's where it gets interesting: Comp-committee members like it when they can tell company executives, your comp is in the top half for our industry. They might also honestly think that their company's executives deserve to be paid at least in the top half of the "comparables," that is, above either the average or the median for the company's industry segment. So consider what happens mathematically to executive compensation across the board when lots of comp committees have this mindset: The mid-range of the compensation band floats upward over time.
+ As the mid-range of the band rises over time, future compensation committees may feel pressure to raise executive compensation to keep up with the Joneses, that is, with the rising mid-range.
[1] http://www.wlrk.com/webdocs/wlrknew/wlrkmemos/wlrk/wlrk.1833...
[2] http://www.law.cornell.edu/uscode/text/15/78n-1; see also http://www.sec.gov/rules/final/2011/33-9178-secg.htm
[3] http://www.integrogroup.com/data/File/white-papers/exec_comp...