We consider observable restrictions on asset prices in an exchange economy with general preferences and endowments and an asset structure that may be incomplete. - Asset prices satisfy the martingale property with respect to a class of probability measures; however, generically, not with respect...

When the asset market is incomplete, equilibrium allocations are not invariant to changes in the financial policies of firms: in the presence of secondary assets, such as options, whose payoffs depend nonlinearly on the price of equity, the range of attainable reallocations of revenue varies as...

When the asset market is incomplete, and assets are traded at an initial contracting period, competitive equilibria may fail to exist. This may occur in a robust economy with asset payoffs denominated in a numeraire commodity. Restrictions on the asset structure guarantee the existence of...