Bossaerts, P.Ghirardato, PaoloGuarnaschelli, SerenaZame, W. R.2008-03-122008-03-122008-03-122007https://infoscience.epfl.ch/handle/20.500.14299/20049Asset pricing theoryThe Impact of Ambiguity On Prices And Allocations In Competitive Financial Marketstext::working paper