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No Noise Macro's avatar

Wonderful introduction to some of the risk premia and inefficiencies found in the market. There are so many more that can be found in niche areas and markets, but the scalability differs. Some will work for smaller (institutional or retail) investors that are too small for bigger institutions

James Benjamin's avatar

Fama's EMH rests on certain assumptions about how returns from share and commodity markets are distributed. They were assumed to be distributed 'normally' despite Mandelbrot showing returns are distributed according to a Power law. That may sound a bit esoteric, but it's actually pretty important because normal distributions' volatility can be captured by the standard deviation - a Power law's volatility is without bound (risk is infinite).

Here's a good read that explains it - but (Mis)Behaviour of Markets does too.

https://acrobat.adobe.com/id/urn:aaid:sc:AP:88b8a15f-1272-4531-9011-af7fe0e724cd

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