A Fundamental problem Given a collection of agents(voters) with preferences over different alternatives (allocations, outcomes) how should society evaluate these alternatives and make a decision for all that may be for the will of some voters but against that of othersA Fundamental problem • Given a collection of agents (voters) – with preferences over different alternatives (allocations, outcomes), • how should society evaluate these alternatives and make a decision for all – that may be for the will of some voters but against that of others