Andrew W. Lo – Adaptive Markets and the New World Order

http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1977721 Abstract: The traditional investment paradigm is based on several key assumptions including rational investors, stationary probability laws, and a positive linear relationship between risk and expected return with parameters that are constant over time and which can be accurately estimated. These assumptions were plausible during the “Great Modulation” — the seven decades spanning the…