In the world of correlations, this one's a doozy: in 2011, a Finnish economist found a relationship between penis length and GDP in different countries. More specifically, as the GDPs got larger, the penises got smaller (or vice versa?). The author suggests that the trend could be related to the effects of testosterone and/or penis size on risk-taking or self-esteem. Unfortunately, there's not much that can be done to change this particular phenomenon. But as he goes on to point out, "It clearly
