By using the standard combining logics technique (D. M. Gabbay 1999) we define a generalization of von Wright’s preference logic (G. H. von Wright 1963) enabling to express, on an almost propositional level, the individual and the social preference relations simultaneously. In this context we...

The current economic crisis has shaken belief in the capacity of neoliberal ‘ free market’ policies. Numerous supports of state intervention have arisen, and the interest for social choice theory has revived. In this paper we consider three standard properties for aggregating individual into...

General classification of mathematical statements divides them into universal, those of the form ∀xA, and existential ones ∃xA. Common formulations of impossibility theorems of K. J. Arrow and A. K. Sen are represented by the statements of the form ‘there is no x such that A’. Bearing in...

The article deals with the economic behaviour of a hypothetical political leader in the institutionally underdeveloped democratic environment of a transitional society. By using Stigler-PeltzmanÕs model of economic regulation, it has been shown that there is no optimal solution for an...