The asset market is incomplete. Fix-price equilibria exist. Price regulation Pareto improves on a competitive allocation. Prices in competitive markets may fail to attain equilibrium. The theory of general competitive equilibrium does not account for the adjustment of prices; empirical evidence...

This paper proposes a new kind of asymmetric GARCh where the conditional variance obeys two different regimes with a smooth transition function. In one formulation, the conditional variance reacts differently to negative and positive shocks while in a second formulation, small and big shocks...

We provide a definition of the rational expectations core in an atomless economy with asset markets and show that allocations in the core can be decentralized by a system of asset and spot prices as rational expectations equilibria.

In this paper, we show that even if a redundant security does not have the cost-saving role in markets with transaction costs, it may still be relevant to risk-sharing at equilibrium. We call this the coordinating role of the redundant security. We prove that at least 5 securities and 3 states...

We consider the effect of asymmetric information on price formation process in a financial market where private information is held by a market maker. A Byesian game is proposed in which there is price competition between two market makers with two different information partition.

This paper proposes a class of asymmetric Autoregressive Conditional Duration models, which extends the ACD model of Engle and Russell (1997). The asymmetry consists of letting the duration process depend on the state of the price process in the beginning and at the end of the each duration. If...

In this paper we exploit global analysis to explore welfare properties of a standard one-commodity GEI, under different notions of constrained Pareto optimality. In a unifying framework we revise and extend some of the leading results of the literature on incomplete markets and government...