This paper formalizes the idea that more hedging instruments may destabilize markets when traders are heterogeneous and adapt their behavior according to experience based reinforcement learning. We investigate three different economic settings, a simple mean-variance asset pricing model, a...

This paper argues that the introduction of a short-sale constraint in the Arrow-Radner framework invalidates standard definitions of complete and incomplete markets. In this constrained set-up, two threshold values with familiar properties arise.<BR> The case of a zero short-sale bound set on some...

Should loss of earnings be compensated? The established law and economics wisdom considers pure economic loss as a transfer of wealth from the victim to a third party, whose earnings increase as a consequence of the accident. Such transfers do not amount to a social loss and, hence, should not...

Limited liability may result in inefficient accident prevention, because a relevant portion of the expected harm is externalized on victims. This paper shows that under some restrictive conditions further limiting liability by means of a liability cap can improve caretaking.

Following formal privatisation of farm land and assets in Central Europe, the change in agricultural production structures has been both more limited and different than was initially expected. In this paper, the theoretical reasons underlying those expectations are reviewed. An alternative...

In this paper we consider the problem of the control of access to a firm's productive asset, embedding the relevant decision makers into a general structure of formal authority relations. Within such an authority structure, each decision maker acts as a principal to some decision makers, while...

We consider a hierarchical organization with two fully rational agents. The goal of the organization is that of selecting the best alternative out of several available, and agents are heterogenous in the accuracy with which they screen the alternatives. We show that, if internal communications...

We explore the role of firms in insuring non-verifiable output. As a device that allows workers to commit to the delivery of their output, the firm arises endogenously as an alternative to the market if workers are sufficiently risk averse and the firm can base its incentive payments on good...

This paper discusses various ways to organise these consultations, so that a compromise agreement is reached on the solution of the (re)distribution problem. These institutionalised structures of consultation are referred to as 'matching zones' here. Practical experiences, mainly from the...

In this paper we want to analyze the internal divisional structure within an organi-