This paper considers a class of repeated signalling games to gain some intuitive insights into the effects and the desirability of modelling players in a dynamic game of incomplete information as being obstinate in the sense that their beliefs satisfy a support restriction. We demonstrate that...

The paper analyzes the canonical hold-up model of Hart and Moore (1988) under the assumption that the courts can verify delivery of the good by the seller. We show that the first best can be achieved using simple "option contracts" which give the seller the right to decide whether or not trade...

In this paper we investigate the possibilities of Pareto-improving reforms of a pay-as-you-go (PAYG) pension system in a framework of endogenous growth. Belan et al. (1996) propose a transition of a PAYG system to a system of savings--subsidization. We follow this approach and prove that a...

The interaction of social security (based on the two pillars unemployment insurance and public pension system), unemployment, and economic growth is considered in an overlapping generations model with endogenous growth and efficiency wages. The impact of each worker's and employer's social...

In a general setting of private information, the possibility (impossibility) theorem is said to be valid, if a balanced and ex post efficient mechanism exists (does not exist) which agents voluntarily participate at. Possibility and impossibility results are called robust if they hold for all...