This paper studies asset markets in which ambiguity averse investors face Knightian uncertainty about expected payoffs. The same investors, however, might wish to resolve their uncertainty, although not risk, by just purchasing information. In these markets, uninformed and, hence, ambiguity...

The paper analyzes the interactions between the precision of information, trade and welfare within a decision framework of an exporting firm. Information in a financial market is described in terms of a publicly observable signal. With higher transparency, the signal conveys more precise...