A paper authored by Tatu Westling of Helsinki University explores the relationship between the GDP growth of countries and the penile length of their residents.
The size of male organ is found to have an inverse U-shaped relationship with the level of GDP in 1985. It can alone explain over 15% of the variation in GDP. The GDP maximizing size is around 13.5 centimetres, and a collapse in economic development is identified as the size of male organ exceeds 16 centimetres.
That “U-shaped” curve…it looks like something flaccid-ish, innit? (via @atenni)