Does size matter?

OK this is all over the web already but still I thought I'd share this beautifully-written new development paper with everybody. Here's an extract from the abstract:

This paper explores the link between economic development and penile length... 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... It is also found to be more important determinant of GDP growth than country's political regime type.

Economics at its best? Apparently, the relationship falls apart when one controls for average population height.

ht: Serge