Fama versus Shiller

Was there another reason why both Fama and Shiller, the two opposing ends of the world view spectrum on market risk and return, were awarded the Nobel Prize?   You never know, but what is clear to me is that issues of market efficiency need to be reconciled with the realities of economic and market excess and imbalance.  

Methods for all moments (Economist) – “Eugene Fama of Chicago, is known for his ardent belief in the efficiency of markets: he declined to renew his subscription to this newspaper after tiring of its incessant warning about bubbles, the very existence of which he denies. Robert Shiller from Yale, in contrast, is known for his prescient warnings of bubbles, in technology stocks in the 1990s and in housing in the 2000s.”

http://www.voxeu.org/article/fama-hansen-shiller-nobelists-2013

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