01387pab a2200133 454500008004000000100001900040245008400059260000900143300001500152362000800167520100000175650002601175773005201201180718b2008 xxu||||| |||| 00| 0 eng d aRochet, Claude aThe common good as an invisible hand: Machiavelli's legacy to public management c2008 ap.497-521. aSep aPublic management has been dominated by the quest for efficiency and has left us with fundamental ethical questions that remain unresolved. It is argued that Machiavellian thought may provide us with concepts and tools applicable to ruling societies confronted with uncertainities and change that are (1) in line with the most recent insights into institutional evolution and (2) appropriate to solve complex decision-making problems. the common good - a central concept of Machiavelli's thought - appears to be an invisible hand that lowers the transaction costs and acts as the keystone of complex public affairs thinking. This analysis is illustrated by a comparative case study of the two management projects of infrastructure crossing the Alps, the Alp Transit in Switzerland, and the Lyon Torino Link. It concludes with a proposal to upgrade the research program in public management that allows effectiveness (legitimacy of the ends) and effectiveness in its implementation. - Reproduced. aPublic administration aInternational Review of Administrative Sciences