Policy towards speculative bubbles is examined in a model of a finite horizon 'greater fool' bubble, with rational agents, asymmetric information and short-sales constraints. This model permits the use of standard tools of comparative dynamics and welfare economics to analyze bubble policies....

The current debate on the new Basel Accord gives rise to a natural question about the appropriate form of capital regulation.We construct a simple framework to analyze this issue. In our model the risk carried by a bank as well as managerial risk preference are a bank's private information. We...

We analyze an economy with asymmetric information and endogenize the possibilities for information transmission between members of a coalition. We then define a concept of the Core that takes into account these communication possibilities. The internal consistency of the improvements is...

In this paper, we investigate a new concept of a market's commodity-information structure (a partition of the set of real goods that are treated as one commodity for market exchanges) and technologies relat- ing to it, commodity-information technologies. Using this concept, we can always...

This paperfs main purpose is to introduce a new concept of the marketfs commodity-information structure (a partition of the set of real goods that are treated as one commodity for market ex- changes) on which we base our ordinary static general equilibrium arguments and settings to analyze...