In what I consider a landmark paper of physiological economics, Tatu Westling of the University of Helsinki has finally brought some scientific rigor in the mess that is macroeconomics. His paper “Male Organ and Economic Growth: Does Size Matter?” examines the relationship of GDP growth with male endowment. I quote from his abstract:
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. […] With due reservations it is also found to be more important determinant of GDP growth than country’s political regime type. […] Although all evidence is suggestive at this stage, the `male organ hypothesis’ put forward here is robust to exhaustive set of controls and rests on surprisingly strong correlations.
I would not go as far as saying that the “male organ hypothesis” does quite reach the level of generality that is delivered by Paul Krugman’s classic “The Theory of Interstellar Trade”, but being a young researcher still, I am sure that there is more to be expected on this subject in the future by Tatu Westling. I’m looking forward to it!