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A paper published last year in the INFORMS journal Management Science, which collected golfing records for more than 300 CEOs from S&P 1500 firms from 2008 to 2012, found that the more golf a CEO played, the more a firm’s performance and value decreased. When CEOs played at least 22 rounds in a year, they found, the mean return on assets was more than 100 basis points lower than for firms whose CEOs played golf less frequently. 

Research done for the INFORMS journal Management Science, which involved analysis of 300 CEOs from S&P firms between 2008 and 2012  found … the more a CEO played golf, the more that firm’s value and performance dropped. If the CEO played at least 22 rounds a year, the mean return on assets was more than 100 basis points lower than for firms whose CEOs played golf less frequently.

The double- blind study, “The Bull of Wall Street: Experimental Analysis of Testosterone and Asset Trading,” which was published in the INFORMS journal Management Science, gave either topical testosterone or a placebo to 140 young males and set them loose buying and selling financial assets to earn real money. The men who got the additional testosterone bought and sold more, created larger price bubbles, were prone to mis-pricing, and their perception of a stock’s value was skewed.

In a paper in the INFORMS journal Management Science called ‘The Bull of Wall Street: Experimental Analysis of Testosterone and Asset Trading’, experts gave 140 young men an edible gel containing either a placebo or testosterone. The participants were then set an experimental task where they had to post bids and ask prices of assets, as well as buying and selling financial assets to earn money. The researchers found that among the group which received extra testosterone, larger price bubbles formed, there was more mispricing and their perception of a stock’s value changed dramatically.

Ramayya Krishnan, dean of the Heinz College of Information Systems and Public Policy at Carnegie Mellon University, has been elected as president of the Board of Directors at INFORMS, an international association of operations-research and analytics professionals and students.