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A model of deliberative and aggregative democracy
(National University of Ireland, Galway, 2011-02)
We present a model of collective decision making in which voting and deliberation are treated simultaneously. Political theorists argue that public discussion can lead individuals to change their preferences. This aspect ...
A measure of distance between judgment sets (Working paper no. 169)
(National University of Ireland, Galway, 2011-02)
In the literature on judgment aggregation, an important open question is how to measure the distance between any two judgment sets. This is relevant for issues of social choice: if two individuals hold different beliefs ...
Aggregating partitions
(National University of Ireland, Galway, 2011-02)
Consider the following social choice problem. A group of individuals seek to partition a finite set X into two subsets. The individuals may disagree over the partition and an aggregation rule is applied to determine a ...
U.S. Presidential Elections and the referendum paradox
(National University of Ireland, Galway, 2011-02)
In the United States, the president is elected by the Electoral College (EC) and not directly by individual voters. This can give rise to a so-called 'referendum paradox' in which one candidate receives more popular votes ...
A foundation for Pareto optimality
(Elsevier, 2020-03-04)
Can an axiomatic justification be given for the requirement that society picks all and only Pareto optimal alternatives at each profile of individual preferences? Using the framework of fixed-agenda social choice theory, ...