caa a22 4500 463174283 CHVBK 20180406164821.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s00355-006-0152-9 doi (NATIONALLICENCE)springer-10.1007/s00355-006-0152-9 Strategy-proof Cardinal Decision Schemes [Elektronische Daten] [Bhaskar Dutta, Hans Peters, Arunava Sen] This paper analyses strategy-proof mechanisms or decision schemes which map profiles of cardinal utility functions to lotteries over a finite set of outcomes. We provide a new proof of Hylland's theorem which shows that the only strategy-proof cardinal decision scheme satisfying a weak unanimity property is the random dictatorship. Our proof technique assumes a framework where individuals can discern utility differences only if the difference is at least some fixed number which we call the grid size. We also prove a limit random dictatorship result which shows that any sequence of strategy-proof and unanimous decision schemes defined on a sequence of decreasing grid sizes approaching zero must converge to a random dictatorship. Springer-Verlag, 2006 Dutta Bhaskar University of Warwick, Coventry, UK aut Peters Hans Department of Quantitative Economics, University of Maastricht, P.O. Box 616, 6200, Maastricht, MD, The Netherlands aut Sen Arunava Indian Statistical Institute, New Delhi, India aut Social Choice and Welfare Springer-Verlag 28/1(2007-01-01), 163-179 0176-1714 28:1<163 2007 28 355 https://doi.org/10.1007/s00355-006-0152-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00355-006-0152-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dutta Bhaskar University of Warwick, Coventry, UK aut NATIONALLICENCE 700 1- Peters Hans Department of Quantitative Economics, University of Maastricht, P.O. Box 616, 6200, Maastricht, MD, The Netherlands aut NATIONALLICENCE 700 1- Sen Arunava Indian Statistical Institute, New Delhi, India aut NATIONALLICENCE 773 0- Social Choice and Welfare Springer-Verlag 28/1(2007-01-01), 163-179 0176-1714 28:1<163 2007 28 355 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 458076945 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer