Social choice theory is the field of scientific inquiry that studies the aggregation of individual preferences towards a collective choice. For example, social choice theorists—who hail from a range of different disciplines, including mathematics, economics, and political science—are interested in the design and theoretical evaluation of voting rules. Questions of social choice have stimulated ...

This paper studies the problem of computing aggregation rules in combinatorial domains, where the set of possible alternatives is a Cartesian product of (finite) domain values for each of a given set of variables, and these variables are usually not preferentially independent. We propose a very general heuristic framework SC* for computing different aggregation rules, including rules for cardin...

Behavioural social choice has been proposed as a social choice parallel to seminal developments in other decision sciences, such as behavioural decision theory, behavioural economics, behavioural finance and behavioural game theory. Behavioural paradigms compare how rational actors should make certain types of decisions with how real decision makers behave empirically. We highlight that importa...

We investigate the following problem of construction of a social decision rule. Given a set of n agents, each agent evaluates alternatives from a finite set X using complete and transitive preferences, and we look for a complete and transitive social preference over the alternatives. This kind of aggregation has been considered in many publications, beginning with the seminal work by Arrow [6]....

Judgment aggregation is concerned with the problem of aggregating individual views on logically related issues. It offers a general framework in which several different types of aggregation problems can be represented and studied. Furthermore, judgment aggregation can be applied to problems that consider together issues that are typically considered as separate aggregation problems. E.g., judgm...

the social security act is called as a new branch of law. one of the important sections on social security criminal act is the section 97 which in this article will be studied with the aim of explaining of the article as one of the rules of social security, pathology and extending of the law literature of social security. this study shows that, while the 97 section creates and states the new an...