caa a22 4500 605488800 CHVBK 20210128100457.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10683-014-9413-0 doi (NATIONALLICENCE)springer-10.1007/s10683-014-9413-0 Experimental departures from self-interest when competing partnerships share output [Elektronische Daten] [Josh Cherry, Stephen Salant, Neslihan Uler] When every individual's effort imposes negative externalities, self-interested behavior leads to socially excessive effort. To curb these excesses when effort cannot be monitored, competing output-sharing partnerships can form. With the right-sized groups, aggregate effort falls to the socially optimal level. We investigate this theory experimentally and find that while it makes correct qualitative predictions, there are systematic quantitative deviations, always in the direction of the socially optimal investment. Using data on subjects' conjectures of each other's behavior we investigate altruism, conformity and extremeness aversion as possible explanations. We show that deviations are consistent with both altruism and conformity (but not extremeness aversion). Economic Science Association, 2014 Output-sharing nationallicence Partnership solution nationallicence Laboratory experiment nationallicence Altruism nationallicence Conformity nationallicence Cherry Josh Kellogg School of Management, Chicago, IL, USA aut Salant Stephen University of Michigan, Ann Arbor, MI, USA aut Uler Neslihan University of Michigan, Ann Arbor, MI, USA aut Experimental Economics Springer US; http://www.springer-ny.com 18/1(2015-03-01), 89-115 1386-4157 18:1<89 2015 18 10683 https://doi.org/10.1007/s10683-014-9413-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10683-014-9413-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cherry Josh Kellogg School of Management, Chicago, IL, USA aut NATIONALLICENCE 700 1- Salant Stephen University of Michigan, Ann Arbor, MI, USA aut NATIONALLICENCE 700 1- Uler Neslihan University of Michigan, Ann Arbor, MI, USA aut NATIONALLICENCE 773 0- Experimental Economics Springer US; http://www.springer-ny.com 18/1(2015-03-01), 89-115 1386-4157 18:1<89 2015 18 10683