Allen, Franklin; Morris, Stephen; Shin, Hyun Song - Cowles Foundation for Research in Economics, Yale University - 2003
In a financial market where traders are risk averse and short lived, and prices are noisy, asset prices today depend on the average expectation today of tomorrow's price. Thus (iterating this relationship) the date 1 price equals the date 1 average expectation of the date 2 average expectation...