Rational group decision making: A random field Ising model at T = 0 Export

@article{citeulike:940717, abstract = {A modified version of a finite random field Ising ferromagnetic model in an external magnetic field at zero temperature is presented to describe group decision making. Fields may have a non-zero average. A postulate of minimum inter-individual conflicts is assumed. Interactions then produce a group polarization along one very choice which is however randomly selected. A small external social pressure is shown to have a drastic effect on the polarization. Individual bias related to personal backgrounds, cultural values and past experiences are introduced via quenched local competing fields. They are shown to be instrumental in generating a larger spectrum of collective new choices beyond initial ones. In particular, compromise is found to results from the existence of individual competing bias. Conflict is shown to weaken group polarization. The model yields new psychosociological insights about consensus and compromise in groups.}, author = {Galam, S.}, citeulike-article-id = {940717}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/S0378-4371(96)00456-6}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0378437196004566}, citeulike-linkout-2 = {http://www.sciencedirect.com/science/article/B6TVG-3SPGWM7-39/2/95b644e2a89d70eab1109b2d8280bb14}, day = {15}, doi = {10.1016/S0378-4371(96)00456-6}, issn = {03784371}, journal = {Physica A: Statistical and Theoretical Physics}, keywords = {herding-behavior, ising, statistical-mechanics, statistical-methods}, month = {April}, number = {1-4}, pages = {66--80}, posted-at = {2009-09-05 05:14:41}, priority = {2}, title = {Rational group decision making: A random field Ising model at T = 0}, url = {http://dx.doi.org/10.1016/S0378-4371(96)00456-6}, volume = {238}, year = {1997} }

TY - JOUR ID - citeulike:940717 L3 - citeulike-article-id:940717 N2 - A modified version of a finite random field Ising ferromagnetic model in an external magnetic field at zero temperature is presented to describe group decision making. Fields may have a non-zero average. A postulate of minimum inter-individual conflicts is assumed. Interactions then produce a group polarization along one very choice which is however randomly selected. A small external social pressure is shown to have a drastic effect on the polarization. Individual bias related to personal backgrounds, cultural values and past experiences are introduced via quenched local competing fields. They are shown to be instrumental in generating a larger spectrum of collective new choices beyond initial ones. In particular, compromise is found to results from the existence of individual competing bias. Conflict is shown to weaken group polarization. The model yields new psychosociological insights about consensus and compromise in groups. IS - 1-4 JF - Physica A: Statistical and Theoretical Physics SN - 03784371 EP - 80 TI - Rational group decision making: A random field Ising model at T = 0 VL - 238 SP - 66 KW - herding-behavior KW - ising KW - statistical-mechanics KW - statistical-methods AU - Galam, S PY - 1997/04/15/ UR - http://dx.doi.org/10.1016/S0378-4371(96)00456-6 ER -