I Write Letters to CEOs
> the compound annual return of the respondent group is 8.97% greater than the non-respondent companies.<p>That's actually interesting, because I could easily explain away the opposite result: CEOs who waste their time responding to personal letters aren't focused on improving company performance. For example, there's some potential negative correlation between time spent playing golf and company performance [1].<p>Granted, even if this were statistically significant you can think of explanations why it makes sense: "These CEOs have thought so deeply about their business that responding to these letters is trivial", or "Being forced to answer these questions is beneficial for the CEOs business acumen".<p>Of course the most likely explanation is that the correlation is just spurious and the two things are unrelated.<p>Still, would be an interesting study!<p>1: <a href="http://www.businessinsider.com/ceo-golf-rounds-indicate-poor-performance-2014-11" rel="nofollow">http://www.businessinsider.com/ceo-golf-rounds-indicate-poor...</a>