Excess CEO returns refer to CEO financial returns in excess of shareholder returns. How do boards rein in excess CEO returns? Introducing a social capital view of board monitoring, we suggest that boards face two competing normative pressures-corporate elite norms and monitoring norms. How boards conform to such normative pressures for controlling excess CEO returns is affected by their external and internal social capital. Further, we substantiate our arguments by showing that powerful CEOs and institutional investors may facilitate or constrain the normative pressures existing in the social network and alter the effects of board social capital on excess CEO returns. Data from a sample of U.S. corporations listed on the Standard and Poor's 1,500 index from 1999 to 2010 largely support our framework. 2 For example, over a decade (2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010), the average annual CEO returns from firm-related wealth for John H. Hammergren, CEO of McKesson, amounted to 114 percent, but average annual shareholder returns were only 17 percent. In this case, the average annual excess CEO returns would be 97 percent. 6 CEO pay is the ex ante granted CEO pay, which includes salary, bonus, total value of restricted stock granted, total value of stock options granted (using Black-Scholes), long-term incentive payouts, and all other compensation prospectively granted. CEO pay suggests that normative pressures exist at several stages in the CEO compensation process.