First Published in 1991. Routledge is an imprint of Taylor & Francis, an informa company.

Positive Political Theory I is concerned with the formal theory of preference aggregation for collective choice. The theory is developed as generally as possible, covering classes of aggregation methods that include such well-known examples as majority and unanimity rule and focusing in particular on the extent to which any aggregation method is assured to yield a set of best alternatives. The book is intended both as a contribution to the theory of collective choice and as a pedagogic tool.

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