This led FORBES to a deeper examination of his wealth, and a stark conclusion: The value that the prince puts on his holdings at times feels like an alternate reality, including his publicly traded Kingdom Holding, which rises and falls based on factors that, coincidentally, seem more tied to the FORBES billionaires list than fundamentals.

FORBES: Prince Alwaleed And The Curious Case Of Kingdom Holding Stock

Filer (1984) comes to an identical conclusion: the DDS reallocates property rights: thus, the value of a work of art without full property rights is less than the value with full rights.

FORBES: The Droit De Suite Dilemma (And Why It's Just A Bad Idea)

He's been hot on the sector since March, when he came to the conclusion that the average stock in the sector was trading at 50% of its fair value.

FORBES: Taming the Sector Beast