High income risk is part of life in developing countries. Climatic risks, economic fluctuations, but also a large number of individual-specific shocks make these households vulnerable to serious hardship. For example, details are given on the various shocks and events causing serious hardship to...

This paper highlights the importance of institutions in explaining the variation of investment rates and of two measures of bank deposits across countries. A general index of economic security is created for 130 countries. Its explanatory power is compared with measures of specific institutional...

Strategy-proofness (SP) is a sought-after property in social choice functions because it ensures that agents have no incentive to misrepresent their private information at both the interim and ex post stages. Group strategy-proofness (GSP), however, is a notion that is applied to the ex post...

This paper studies the evolution of effective pre-play communication in game where a single communication round precedes a simultaneous-move, complete-information game.

This paper gives a concrete example of a nondictatorial, coalitionally strategyproof social choice function for countably infinite societies. The function is defined for those profiles such that for each alternative, the coalition that prefers it the most is gdescribable.h The gdescribableh...

A widely held belief in financial economics suggests that stock prices always adequately reflect all available information. Price movements away from fundamentals are assumed to occur only infrequently, if at all. „False“ prices are supposed to be corrected by the counter-actions of...

An extension of Condorcet's paradox by McGarvey (1953) asserts that for every asymmetric relation R on a finite set of candidates there is a strict-preferences voter profile that has the relation R as its strict simple majority relation. We prove that McGarvey's theorem can be extended to...

Cooperative investments in R&D are a significant driving force of the modern economy. As it well-known, the R&D investments are uncertain and the strategic alliances create synergies and additional information that increase the success probabilities about R&D projects. The theory of real option...

This paper describes the historical evolution of the analysis of some aspects of the strategic use of information. The use of mixed strategies aims to create uncertainty on the move to be played or on the private information of the players. In a repeated game framework, strategic behavior when...

We investigate the outcome of bargaining when a player’s pay-off from agreement is risky. We find that a risk-averse player typically increases his equilibrium receipts when his pay-off is made risky. This is because the presence of risk makes individuals behave 'more patiently' in bargaining....