We describe a symmetric continuous-time model of trading among relatively overconfident, oligopolistic informed traders with exponential utility. Traders agree to disagree about the precisions of their continuous flows of Gaussian private information. The price depends on a trader's inventory...

We study the dynamics of bid-ask spread and trading volume using a multi-period trading model with asymmetric information and oligopolistic market makers. Market makers optimally make offsetting trades in "bid" and "ask" markets by adjusting bid and ask prices/depths to avoid holding...