Dimitri, Nicola (contributor); Piga, Gustavo (contributor); … - 2006
-- Preventing collusion in procurement / Gian Luigi Albano, Paolo Buccirossi, Giancarlo Spagnolo and Matteo Zanza -- Bidding rings …Introduction / Nicola Dimitri, Gustavo Piga and Giancarlo Spagnolo -- The variety of procurement practice : evidence … from public procurement / Laura Carpineti, Gustavo Piga and Matteo Zanza -- General strategic principles -- When should …