The approach to plural rationality through soft systems methodology -- Beyond the politics of interest -- The plural rationality and interest of national planners: experiences in Hungary -- Beyond rationality -- The culture of decision making -- Different dissolutions of the man-and-world problem -- Rationality and equivalent redescriptions -- Back from prospect theory to utility theory -- Negotiation and mediation in conflicts. II. Plural rationality and interactive decision processes -- On the structure, stabilization and accuracy of the decision process -- Uses of experimental games -- Plausible outcomes for games in strategic form -- Game and bargaining solutions for group decision problems -- Interactive group decision making by coalitions -- On the role of dynamics and information in international negotiations: the case of fishery management -- Macromodels and multiobjective decision making -- On the components in interactive multiobjective programming methods -- An integrated programming package for multiple-criteria decision analysis -- A trajectory-oriented extension of DIDASS and its applications -- Decision support based on the skeleton method - the HG package -- A principle for solving qualitative multiple-criteria problems -- A decision support system for planning and controlling agricultural production with a decentralized management structure -- On the determination of the optimal temperature for the growth of an early cucumber crop in a greenhouse -- DISCRET - a package for multicriteria optimization and decision problems with discrete alternatives -- Application of DIDASS methodology to a flood control problem - numerical Experiments -- An experimental session with the HG package -- An interactive method for decision support in a two-person game with an example from regional planning -- Two empirical tests with approaches to multiple-criteria decision making -- Index of keywords.