We study a general static noisy rational expectations model, where investors have private information about asset payoffs, with common and private components, and about their own exposure to an aggregate risk factor, and derive conditions for existence and uniqueness (or multiplicity) of...

We investigate the possibility of statistical evaluation of the market completeness for discrete timestock market models. It is known that the market completeness isnot a robust property: small random deviations of the coefficientsconvert a complete market model into a incomplete one. The...

We demonstrate how suppliers can take strategic speculative positions in derivatives markets to soften competition in the spot market. In our game, suppliers first choose a portfolio of call options and then compete with supply functions. In equilibrium firms sell forward contracts and buy call...