We show that a linear pure strategy equilibrium may not exist in Madrigal's (1996, Journal of Finance) setup, contrary to the claim of the original paper. This is because Madrigal's characterization of a pure strategy equilibrium omits a second-order condition. If the non-fundamental...

We analyze a model where traders have different trading opportunities and learn information from prices. The difference in trading opportunities implies that different traders may have different trading motives when trading in the same market -- some trade for speculation and others for hedging...